1
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Zhang M, Peng J, Gao Y, Wang B, He J, Bai Y, Liu J, Chen CL, Fang Y, Bian H. Unveiling the Structural and Dynamic Characteristics of Concentrated LiNO 3 Aqueous Solutions through Ultrafast Infrared Spectroscopy and Molecular Dynamics Simulations. J Phys Chem Lett 2024:7610-7619. [PMID: 39028986 DOI: 10.1021/acs.jpclett.4c01449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
Highly concentrated aqueous electrolytes have attracted a significant amount of attention for their potential applications in lithium-ion batteries. Nevertheless, a comprehensive understanding of the Li+ solvation structure and its migration within electrolyte solutions remains elusive. This study employs linear vibrational spectroscopy, ultrafast infrared spectroscopy, and molecular dynamics (MD) simulations to elucidate the structural dynamics in LiNO3 solutions by using intrinsic and extrinsic vibrational probes. The N-O stretching vibrations of NO3- exhibit a distinct spectral splitting, attributed to its asymmetric interaction with the surrounding solvation structure. Analysis of the vibrational relaxation dynamics of intrinsic and extrinsic probes, in combination with MD simulations, reveals cage-like networks formed through electrostatic interactions between Li+ and NO3-. This microscopic heterogeneity is reflected in the intertwined arrangement of ions and water molecules. Furthermore, both vehicular transport and structural diffusion assisted by solvent rearrangement for Li+ were analyzed, which are closely linked with the bulk concentration.
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Affiliation(s)
- Miaomiao Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Jiahui Peng
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Yuting Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Baihui Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Jiman He
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Yimin Bai
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Jing Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Cheng-Lung Chen
- Department of Chemistry, National Sunyat-sen University, Kaohsiung 80424, China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Hongtao Bian
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
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2
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Lu D, Li R, Rahman MM, Yu P, Lv L, Yang S, Huang Y, Sun C, Zhang S, Zhang H, Zhang J, Xiao X, Deng T, Fan L, Chen L, Wang J, Hu E, Wang C, Fan X. Ligand-channel-enabled ultrafast Li-ion conduction. Nature 2024; 627:101-107. [PMID: 38418886 DOI: 10.1038/s41586-024-07045-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 01/09/2024] [Indexed: 03/02/2024]
Abstract
Li-ion batteries (LIBs) for electric vehicles and aviation demand high energy density, fast charging and a wide operating temperature range, which are virtually impossible because they require electrolytes to simultaneously have high ionic conductivity, low solvation energy and low melting point and form an anion-derived inorganic interphase1-5. Here we report guidelines for designing such electrolytes by using small-sized solvents with low solvation energy. The tiny solvent in the secondary solvation sheath pulls out the Li+ in the primary solvation sheath to form a fast ion-conduction ligand channel to enhance Li+ transport, while the small-sized solvent with low solvation energy also allows the anion to enter the first Li+ solvation shell to form an inorganic-rich interphase. The electrolyte-design concept is demonstrated by using fluoroacetonitrile (FAN) solvent. The electrolyte of 1.3 M lithium bis(fluorosulfonyl)imide (LiFSI) in FAN exhibits ultrahigh ionic conductivity of 40.3 mS cm-1 at 25 °C and 11.9 mS cm-1 even at -70 °C, thus enabling 4.5-V graphite||LiNi0.8Mn0.1Co0.1O2 pouch cells (1.2 Ah, 2.85 mAh cm-2) to achieve high reversibility (0.62 Ah) when the cells are charged and discharged even at -65 °C. The electrolyte with small-sized solvents enables LIBs to simultaneously achieve high energy density, fast charging and a wide operating temperature range, which is unattainable for the current electrolyte design but is highly desired for extreme LIBs. This mechanism is generalizable and can be expanded to other metal-ion battery electrolytes.
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Affiliation(s)
- Di Lu
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China
| | - Ruhong Li
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China
| | | | - Pengyun Yu
- Beijing National Laboratory for Molecular Sciences, Molecular Reaction Dynamics Laboratory, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Ling Lv
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China
| | - Sheng Yang
- State Key Laboratory of Clean Energy Utilization, School of Energy Engineering, Zhejiang University, Hangzhou, China
| | - Yiqiang Huang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China
| | - Chuangchao Sun
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China
| | - Shuoqing Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China
| | - Haikuo Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China
| | - Junbo Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China
| | - Xuezhang Xiao
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China
| | - Tao Deng
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, USA
| | - Liwu Fan
- State Key Laboratory of Clean Energy Utilization, School of Energy Engineering, Zhejiang University, Hangzhou, China
| | - Lixin Chen
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China
- Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Hangzhou, China
| | - Jianping Wang
- Beijing National Laboratory for Molecular Sciences, Molecular Reaction Dynamics Laboratory, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
- University of the Chinese Academy of Sciences, Beijing, China
| | - Enyuan Hu
- Chemistry Division, Brookhaven National Laboratory, Upton, NY, USA.
| | - Chunsheng Wang
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, USA.
| | - Xiulin Fan
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China.
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3
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Yu D, Troya D, Korovich AG, Bostwick JE, Colby RH, Madsen LA. Uncorrelated Lithium-Ion Hopping in a Dynamic Solvent-Anion Network. ACS ENERGY LETTERS 2023; 8:1944-1951. [PMID: 37090169 PMCID: PMC10112391 DOI: 10.1021/acsenergylett.3c00454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 03/09/2023] [Indexed: 05/03/2023]
Abstract
Lithium batteries rely crucially on fast charge and mass transport of Li+ in the electrolyte. For liquid and polymer electrolytes with added lithium salts, Li+ couples to the counter-anion to form ionic clusters that produce inefficient Li+ transport and lead to Li dendrite formation. Quantification of Li+ transport in glycerol-salt electrolytes via NMR experiments and MD simulations reveals a surprising Li+-hopping mechanism. The Li+ transference number, measured by ion-specific electrophoretic NMR, can reach 0.7, and Li+ diffusion does not correlate with nearby ion motions, even at high salt concentration. Glycerol's high density of hydroxyl groups increases ion dissociation and slows anion diffusion, while the close proximity of hydroxyls and anions lowers local energy barriers, facilitating Li+ hopping. This system represents a bridge between liquid and inorganic solid electrolytes, thus motivating new molecular designs for liquid and polymer electrolytes to enable the uncorrelated Li+-hopping transport needed for fast-charging and all-solid-state batteries.
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Affiliation(s)
- Deyang Yu
- Department
of Chemistry, Virginia Polytechnic Institute
and State University, Blacksburg, Virginia 24061, United States
- Macromolecules
Innovation Institute, Virginia Polytechnic
Institute and State University, Blacksburg, Virginia 24061, United States
| | - Diego Troya
- Department
of Chemistry, Virginia Polytechnic Institute
and State University, Blacksburg, Virginia 24061, United States
- Macromolecules
Innovation Institute, Virginia Polytechnic
Institute and State University, Blacksburg, Virginia 24061, United States
| | - Andrew G. Korovich
- Department
of Chemistry, Virginia Polytechnic Institute
and State University, Blacksburg, Virginia 24061, United States
| | - Joshua E. Bostwick
- Department
of Materials Science and Engineering, Pennsylvania
State University, University
Park, Pennsylvania 16802, United States
| | - Ralph H. Colby
- Department
of Materials Science and Engineering, Pennsylvania
State University, University
Park, Pennsylvania 16802, United States
- Materials
Research Institute, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Louis A. Madsen
- Department
of Chemistry, Virginia Polytechnic Institute
and State University, Blacksburg, Virginia 24061, United States
- Macromolecules
Innovation Institute, Virginia Polytechnic
Institute and State University, Blacksburg, Virginia 24061, United States
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4
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Liu X, Li X, Yang X, Lu J, Zhang X, Yuan D, Zhang Y. Influence of Water on Gel Electrolytes for Zinc-Ion Batteries. Chem Asian J 2023; 18:e202201280. [PMID: 36632721 DOI: 10.1002/asia.202201280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 01/13/2023]
Abstract
Gel electrolytes are being intensively explored for aqueous rechargeable zinc-ion batteries, especially towards high performance and multi-functionalities. Water plays a central role on the fundamental properties, interface reaction/interaction, and performance of the gel-type zinc electrolyte. In this review, the influence of water on the physiochemical properties of gel electrolytes is focused on. The correlation between water activity and the fundamental properties of zinc electrolytes is presented. Current approaches and challenges in manipulating water activity and the consequent influence on the electrochemical stability, transport, and interface kinetics of gel electrolytes are summarized. An outlook on approaches to tuning and investigating water activity is provided to shed light on the design of advanced gel electrolytes.
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Affiliation(s)
- Xiangjie Liu
- College of Materials Science and Engineering, Changsha University of Science and Technology, 960, 2nd Section, Wanjiali RD (S), Changsha, Hunan, 410004, P. R. China
| | - Xin Li
- College of Materials Science and Engineering, Changsha University of Science and Technology, 960, 2nd Section, Wanjiali RD (S), Changsha, Hunan, 410004, P. R. China
| | - Xiaotong Yang
- College of Materials Science and Engineering, Changsha University of Science and Technology, 960, 2nd Section, Wanjiali RD (S), Changsha, Hunan, 410004, P. R. China
| | - Jingqi Lu
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics (IAMFE), Nanjing University of Information Science and Technology, Nanjing, 210044, P. R. China
| | - Xuan Zhang
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics (IAMFE), Nanjing University of Information Science and Technology, Nanjing, 210044, P. R. China
| | - Du Yuan
- College of Materials Science and Engineering, Changsha University of Science and Technology, 960, 2nd Section, Wanjiali RD (S), Changsha, Hunan, 410004, P. R. China
| | - Yizhou Zhang
- School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics (IAMFE), Nanjing University of Information Science and Technology, Nanjing, 210044, P. R. China
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5
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Pang MC, Marinescu M, Wang H, Offer G. Mechanical behaviour of inorganic solid-state batteries: can we model the ionic mobility in the electrolyte with Nernst-Einstein's relation? Phys Chem Chem Phys 2021; 23:27159-27170. [PMID: 34852365 DOI: 10.1039/d1cp00909e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Inorganic solid-state lithium-metal batteries could be the next-generation batteries owing to their non-flammability and higher specific energy density. Many research efforts have been devoted to improving the ionic conductivity of inorganic solid electrolytes. For a wide range of electrolytes including liquid and solid polymer electrolytes, an independent measurement or calculation of both electrolyte conductivity and diffusion coefficient is often time-consuming and challenging. As a result, Nernst-Einstein's relation has been used to relate the ionic conductivity to ionic diffusivity after the determination of either parameter. Although Nernst-Einstein's relation has been used for different electrolytes, we demonstrate in this perspective that this relation is not directly transferable to describe the ionic mobility for many inorganic solid electrolytes. The fundamental physics of Nernst-Einstein's relation shows that the relationship between the diffusion coefficient and electrolyte conductivity is derived for ionic mobility in a viscous or a gaseous medium. This postulation contradicts state-of-the-art experimental studies measuring the mechanical behaviour of inorganic solid electrolytes, which show that inorganic solid electrolytes are usually brittle rather than viscoelastic at ambient room temperature. The measurement of loss tangent is required to justify the use of Nernst-Einstein's relation. The outcome of such measurement has two implications. First, if the loss tangent of inorganic solid electrolytes is less than unity in the range of batteries operating temperatures, the impacts of using Nernst-Einstein's relation in modelling the ionic mobility should be quantified. Secondly, if the measured loss tangent is comparable to that of solid polymers and lithium metal, inorganic solid electrolytes may behave in a viscoelastic manner as opposed to the brittle behaviour usually suggested.
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Affiliation(s)
- Mei-Chin Pang
- Electrochemical Science & Engineering, Department of Mechanical Engineering, Imperial College London, SW7 2BP London, UK.
| | - Monica Marinescu
- Electrochemical Science & Engineering, Department of Mechanical Engineering, Imperial College London, SW7 2BP London, UK.
| | - Huizhi Wang
- Electrochemical Science & Engineering, Department of Mechanical Engineering, Imperial College London, SW7 2BP London, UK.
| | - Gregory Offer
- Electrochemical Science & Engineering, Department of Mechanical Engineering, Imperial College London, SW7 2BP London, UK.
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6
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Śmiechowski M. Molecular level interpretation of excess infrared spectroscopy. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Lundin F, Aguilera L, Hansen HW, Lages S, Labrador A, Niss K, Frick B, Matic A. Structure and dynamics of highly concentrated LiTFSI/acetonitrile electrolytes. Phys Chem Chem Phys 2021; 23:13819-13826. [PMID: 34195732 DOI: 10.1039/d1cp02006d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High salt concentration has been shown to induce increased electrochemical stability in organic solvent-based electrolytes. Accompanying the change in bulk properties is a structural ordering on mesoscopic length scales and changes in the ion transport mechanism have also been suggested. Here we investigate the local structure and dynamics in highly concentrated acetonitrile electrolytes as a function of salt concentration. Already at low concentrations ordering on microscopic length scales in the electrolytes is revealed by small angle X-ray scattering, as a result of correlations of Li+ coordinating clusters. For higher salt concentrations a charge alternation-like ordering is found as anions start to take part in the solvation. Results from quasi-elastic neutron spectroscopy reveal a jump diffusion dynamical process with jump lengths virtually independent of both temperature and Li-salt concentration. The jump can be envisaged as dissociation of a solvent molecule or anion from a particular Li+ solvation structure. The residence time, 50-800 ps, between the jumps is found to be highly temperature and Li-salt concentration dependent, with shorter residence times for higher temperature and lower concentrations. The increased residence time at high Li-salt concentration can be attributed to changes in the interaction of the solvation shell as a larger fraction of TFSI anions take part in the solvation, forming more stable solvation shells.
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Affiliation(s)
- Filippa Lundin
- Department of Physics, Materials Physics, Chalmers University of Technology, SE-41296 Göteborg, Sweden.
| | - Luis Aguilera
- Department of Physics, Materials Physics, Chalmers University of Technology, SE-41296 Göteborg, Sweden. and Energy and Installation, Volvo Cars Corporation, Göteborg, Sweden
| | - Henriette Wase Hansen
- Department of Physics, Materials Physics, Chalmers University of Technology, SE-41296 Göteborg, Sweden. and Glass and Time, IMUFA, Department of Science and Environment, Roskilde University, Postbox 260, DK-4000 Roskilde, Denmark and Institut Laue-Langevin, 71 avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - Sebastian Lages
- Department of Physics, Materials Physics, Chalmers University of Technology, SE-41296 Göteborg, Sweden. and MaxIV Laboratory, Fotongatan 2, SE 224 84 Lund, Sweden
| | - Ana Labrador
- MaxIV Laboratory, Fotongatan 2, SE 224 84 Lund, Sweden
| | - Kristine Niss
- Glass and Time, IMUFA, Department of Science and Environment, Roskilde University, Postbox 260, DK-4000 Roskilde, Denmark
| | - Bernhard Frick
- Institut Laue-Langevin, 71 avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - Aleksandar Matic
- Department of Physics, Materials Physics, Chalmers University of Technology, SE-41296 Göteborg, Sweden.
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8
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Hayamizu K, Chiba Y, Haishi T. Dynamic ionic radius of alkali metal ions in aqueous solution: a pulsed-field gradient NMR study. RSC Adv 2021; 11:20252-20257. [PMID: 35479919 PMCID: PMC9033755 DOI: 10.1039/d1ra02301b] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/19/2021] [Indexed: 01/26/2023] Open
Abstract
The dynamic behavior of alkali metal ions, Li+, Na+, K+, Rb+ and Cs+ in aqueous solutions is one of the most important topics in solution chemistry. Since these alkali metals contain nuclear magnetic resonance (NMR) active nuclei, it is possible to directly measure the diffusion constants of the alkali metal ions using the pulsed field gradient (PFG) NMR method. In this paper, the 7Li, 23Na, 87Rb, 133Cs and 1H resonances are observed for diffusion constants in aqueous solution and the solvent H2O. Until now, the values of the diffusion constant have been lacking when discussing hydration effects around alkali metal ions. It is known that the static ionic radius (Rion) increases with increasing the atomic number, and the experimental diffusion constants also increase with increasing the atomic number, which is opposite to the Stokes–Einstein (SE) relation. It suggests that alkali metal ions diffuse through a space of 10−6 m accompanying the hydrated spheres with a time interval of 10−3 s. For each alkali metal ion, the dynamic ionic radius is evaluated. Stokes radius (dynamic ionic radius) of the alkali metal ions versus the ionic radius (Rion) at 303 K. The dotted line is a guide for the 1 : 1 relation.![]()
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Affiliation(s)
- Kikuko Hayamizu
- Institute of Applied Physics, Tsukuba University Tennodai Tsukuba 305-8573 Japan
| | - Yusuke Chiba
- Graduate School of Pure and Applied Sciences and Tsukuba Research Center for Energy, Materials Science (TREMS), University of Tsukuba Tennodai Tsukuba 305-8573 Japan
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9
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Fong KD, Self J, McCloskey BD, Persson KA. Ion Correlations and Their Impact on Transport in Polymer-Based Electrolytes. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02545] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Kara D. Fong
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
- Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Julian Self
- Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, California 94720, United States
| | - Bryan D. McCloskey
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
- Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Kristin A. Persson
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, California 94720, United States
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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10
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Diffusion of ions and solvent in propylene carbonate solutions for lithium-ion battery applications. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114351] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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11
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Shah FU, Gnezdilov OI, Khan IA, Filippov A, Slad NA, Johansson P. Structural and Ion Dynamics in Fluorine-Free Oligoether Carboxylate Ionic Liquid-Based Electrolytes. J Phys Chem B 2020; 124:9690-9700. [PMID: 33078951 PMCID: PMC7660752 DOI: 10.1021/acs.jpcb.0c04749] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
![]()
Here,
we investigate the physicochemical and electrochemical properties
of fluorine-free ionic liquid (IL)-based electrolytes with two different
cations, tetrabutylphosphonium, (P4,4,4,4)+,
and tetrabutylammonium, (N4,4,4,4)+, coupled
to a new anion, 2-[2-(2-methoxyethoxy)ethoxy]acetate anion (MEEA)−, for both neat and (P4,4,4,4)(MEEA) also
doped with 10–40 mol % of Li(MEEA). We find relatively weaker
cation–anion interactions in (P4,4,4,4)(MEEA) than
in (N4,4,4,4)(MEEA), and for both ILs, the structural flexibility
of the oligoether functionality in the anion results in low glass
transition temperatures, also for the electrolytes made. The pulsed
field gradient nuclear magnetic resonance (PFG NMR) data suggest faster
diffusion of the (MEEA)− anion than (P4,4,4,4)+ cation in the neat IL, but the addition of a Li salt
results in slightly lower mobility of the former than the latter and
lower ionic conductivity. This agrees with the combined 7Li NMR and attenuated total reflection–Fourier transform infrared
(ATR–FTIR) spectroscopy data, which unambiguously reveal preferential
interactions between the lithium cations and the carboxylate groups
of the IL anions, which also increased as a function of the lithium
salt concentration. In total, these systems provide a stepping stone
for further design of fluorine-free and low glass transition temperature
IL-based electrolytes and also stress how crucial it is to control
the strength of ion–ion interactions.
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Affiliation(s)
- Faiz Ullah Shah
- Chemistry of Interfaces, Luleå University of Technology, SE-971 87 Luleå, Sweden
| | - Oleg I Gnezdilov
- Institute of Physics, Kazan Federal University, 420008 Kazan, Russia
| | - Inayat Ali Khan
- Chemistry of Interfaces, Luleå University of Technology, SE-971 87 Luleå, Sweden
| | - Andrei Filippov
- Chemistry of Interfaces, Luleå University of Technology, SE-971 87 Luleå, Sweden.,Medical and Biological Physics, Kazan Medical University, 420012 Kazan, Russia
| | - Natalia A Slad
- Institute of Polymers, Kazan National Research Technological University, 420015 Kazan, Russia
| | - Patrik Johansson
- Department of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden.,ALISTORE-European Research Institute, CNRS FR 3104, Hub de l'Energie, 80039 Amiens, France
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12
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Srinivasan H, Sharma VK, Mukhopadhyay R, Mitra S. Solvation and transport of lithium ions in deep eutectic solvents. J Chem Phys 2020; 153:104505. [DOI: 10.1063/5.0018510] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- H. Srinivasan
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - V. K. Sharma
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - R. Mukhopadhyay
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - S. Mitra
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
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13
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Local structure and hydrogen bonding in liquid γ-butyrolactone and propylene carbonate: A molecular dynamics simulation. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.110912] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Berhaut C, Lemordant D, Porion P, Timperman L, Schmidt G, Anouti M. Ionic association analysis of LiTDI, LiFSI and LiPF6 in EC/DMC for better Li-ion battery performances. RSC Adv 2019; 9:4599-4608. [PMID: 35520167 PMCID: PMC9060632 DOI: 10.1039/c8ra08430k] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 01/28/2019] [Indexed: 11/21/2022] Open
Abstract
Insight is given on the type of ion-pairs that could be formed in EC/DMC by Li-salts LiTDI, LiFSI and LiPF6.
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Affiliation(s)
- Christopher L. Berhaut
- Laboratoire PCM2E (EA 6296)
- Université François Rabelais de Tours
- UFR Sciences et Techniques
- 37200 Tours
- France
| | - Daniel Lemordant
- Laboratoire PCM2E (EA 6296)
- Université François Rabelais de Tours
- UFR Sciences et Techniques
- 37200 Tours
- France
| | | | - Laure Timperman
- Laboratoire PCM2E (EA 6296)
- Université François Rabelais de Tours
- UFR Sciences et Techniques
- 37200 Tours
- France
| | | | - Mériem Anouti
- Laboratoire PCM2E (EA 6296)
- Université François Rabelais de Tours
- UFR Sciences et Techniques
- 37200 Tours
- France
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15
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Harris KR. Comment on "Ionic Conductivity, Diffusion Coefficients, and Degree of Dissociation in Lithium Electrolytes, Ionic Liquids, and Hydrogel Polyelectrolytes". J Phys Chem B 2018; 122:10964-10967. [PMID: 30419161 DOI: 10.1021/acs.jpcb.8b08610] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kenneth R Harris
- School of Physical, Environmental and Mathematical Sciences , University of New South Wales , P.O. Box 7916, Canberra , BC ACT 2610 , Australia
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16
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Gheribi AE, Machado K, Zanghi D, Bessada C, Salanne M, Chartrand P. On the determination of ion transport numbers in molten salts using molecular dynamics. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.04.094] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Tripathi AM, Su WN, Hwang BJ. In situ analytical techniques for battery interface analysis. Chem Soc Rev 2018; 47:736-851. [DOI: 10.1039/c7cs00180k] [Citation(s) in RCA: 268] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Interface is a key to high performance and safe lithium-ion batteries or lithium batteries.
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Affiliation(s)
- Alok M. Tripathi
- Nano-electrochemistry Laboratory
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei
- Taiwan
| | - Wei-Nien Su
- Nano-electrochemistry Laboratory
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei
- Taiwan
| | - Bing Joe Hwang
- Nano-electrochemistry Laboratory
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei
- Taiwan
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18
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Hayamizu K. Direct relations between ion diffusion constants and ionic conductivity for lithium electrolyte solutions. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.09.051] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Yamaguchi T, Yoshida K, Yamaguchi T, Nagao M, Faraone A, Seki S. Decoupling between the Temperature-Dependent Structural Relaxation and Shear Viscosity of Concentrated Lithium Electrolyte. J Phys Chem B 2017; 121:8767-8773. [PMID: 28841313 DOI: 10.1021/acs.jpcb.7b04633] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The intermediate scattering functions of concentrated solutions of LiPF6 in propylene carbonate (PC) were measured at various temperatures, two different wavenumbers, and three different concentrations using neutron spin echo (NSE) spectroscopy. The temperature dependence of the relaxation time was larger than that of the steady-state shear viscosity in all cases. The shear relaxation spectra were also determined at different temperatures. The normalized spectra reduced to a master curve when the frequency was multiplied by the steady-state shear viscosity, indicating that the temperature dependence of the steady-state shear viscosity can be explained by that of the relaxation time of the shear stress. It is thus suggested that the dynamics of the shear stress is decoupled from the structural dynamics on the molecular scale.
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Affiliation(s)
- Tsuyoshi Yamaguchi
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University , Furo-cho, Chikusa, Nagoya, Aichi 464-8603, Japan
| | - Koji Yoshida
- Department of Chemistry, Faculty of Science, Fukuoka University , Nanakuma, Jonan, Fukuoka 814-0180, Japan
| | - Toshio Yamaguchi
- Department of Chemistry, Faculty of Science, Fukuoka University , Nanakuma, Jonan, Fukuoka 814-0180, Japan
| | - Michihiro Nagao
- NIST Center for Neutron Research, National Institute of Standards and Technology , Gaithersburg, Maryland 20899-6102, United States.,Center for Exploration of Energy and Matter, Indiana University , Bloomington, Indiana 47408-1398, United States
| | - Antonio Faraone
- NIST Center for Neutron Research, National Institute of Standards and Technology , Gaithersburg, Maryland 20899-6102, United States
| | - Shiro Seki
- Materials Science Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI) , 2-11-1, Iwado-kita, Komae, Tokyo 201-8511, Japan
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20
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Timachova K, Chintapalli M, Olson KR, Mecham SJ, DeSimone JM, Balsara NP. Mechanism of ion transport in perfluoropolyether electrolytes with a lithium salt. SOFT MATTER 2017; 13:5389-5396. [PMID: 28702622 DOI: 10.1039/c7sm00794a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Perfluoropolyethers (PFPEs) are polymer electrolytes with fluorinated carbon backbones that have high flash points and have been shown to exhibit moderate conductivities and high cation transference numbers when mixed with lithium salts. Ion transport in four PFPE electrolytes with different endgroups was characterized by differential scanning calorimetry (DSC), ac impedance, and pulsed-field gradient NMR (PFG-NMR) as a function of salt concentration and temperature. In spite of the chemical similarity of the electrolytes, salt diffusion coefficients measured by PFG-NMR and the glass transition temperature measured by DSC appear to be uncorrelated to ionic conductivity measured by ac impedance. We calculate a non-dimensional parameter, β, that depends on the salt diffusion coefficients and ionic conductivity. We also use the Vogel-Tammann-Fulcher relationship to fit the temperature dependence of conductivity. We present a linear relationship between the prefactor in the VTF fit and β; both parameters vary by four orders of magnitude in our experimental window. Our analysis suggests that transport in electrolytes with low dielectric constants (low β) is dictated by ion hopping between clusters.
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Affiliation(s)
- Ksenia Timachova
- Department of Chemical and Biomolecular Engineering, University of California Berkeley, Berkeley, California 94702, USA.
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21
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Hayamizu K, Seki S, Haishi T. Lithium ion micrometer diffusion in a garnet-type cubic Li7La3Zr2O12(LLZO) studied using7Li NMR spectroscopy. J Chem Phys 2017; 146:024701. [DOI: 10.1063/1.4973827] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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22
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Saito M, Kawaharasaki S, Ito K, Yamada S, Hayamizu K, Seki S. Strategies for fast ion transport in electrochemical capacitor electrolytes from diffusion coefficients, ionic conductivity, viscosity, density and interaction energies based on HSAB theory. RSC Adv 2017. [DOI: 10.1039/c7ra00455a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
To elucidate factors affecting ion transport in capacitor electrolytes, five propylene carbonate (PC) electrolytes were prepared, each of which includes a salt ((C2H5)4NBF4, (C2H5)4NPF6, (C2H5)4NSO3CF3, (C2H5)3CH3NBF4 and LiBF4).
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Affiliation(s)
- Morihiro Saito
- Department of Applied Chemistry
- Faculty of Engineering
- Tokyo University of Agriculture & Technology
- Koganei-shi
- Japan
| | - Satoru Kawaharasaki
- Department of Applied Chemistry
- Faculty of Engineering
- Tokyo University of Agriculture & Technology
- Koganei-shi
- Japan
| | - Kensuke Ito
- Department of Applied Chemistry
- Faculty of Engineering
- Tokyo University of Agriculture & Technology
- Koganei-shi
- Japan
| | - Shinya Yamada
- Department of Applied Chemistry
- Faculty of Engineering
- Tokyo University of Agriculture & Technology
- Koganei-shi
- Japan
| | - Kikuko Hayamizu
- Institute of Applied Physics
- University of Tsukuba
- Tsukuba
- Japan
| | - Shiro Seki
- Materials Science Research Laboratory
- Central Research Institute of Electric Power Industry (CRIEPI)
- Yokosuka-shi
- Japan
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23
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Saito M, Yamada S, Ishikawa T, Otsuka H, Ito K, Kubo Y. Factors influencing fast ion transport in glyme-based electrolytes for rechargeable lithium–air batteries. RSC Adv 2017. [DOI: 10.1039/c7ra07501d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
To elucidate the factors affecting Li-ion transport in glyme-based electrolytes, six kinds of 1.0 M tetraglyme (G4) electrolytes were prepared containing a Li salt (LiSO3CF3, LiN(SO2CF3)2, or LiN(SO2F)2) or different concentrations (0.5, 2.0, or 2.7 M) of LiN(SO2CF3)2.
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Affiliation(s)
- Morihiro Saito
- Department of Applied Chemistry
- Faculty of Engineering
- Tokyo University of Agriculture & Technology
- Koganei-shi
- Japan
| | - Shinya Yamada
- Department of Applied Chemistry
- Faculty of Engineering
- Tokyo University of Agriculture & Technology
- Koganei-shi
- Japan
| | - Taro Ishikawa
- Department of Applied Chemistry
- Faculty of Engineering
- Tokyo University of Agriculture & Technology
- Koganei-shi
- Japan
| | - Hiromi Otsuka
- GREEN
- National Institute for Materials Science (NIMS)
- Tsukuba 305-044
- Japan
| | - Kimihiko Ito
- GREEN
- National Institute for Materials Science (NIMS)
- Tsukuba 305-044
- Japan
| | - Yoshimi Kubo
- GREEN
- National Institute for Materials Science (NIMS)
- Tsukuba 305-044
- Japan
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24
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Śmiechowski M, Krakowiak J, Bruździak P, Stangret J. Unique agreement of experimental and computational infrared spectroscopy: a case study of lithium bromide solvation in an important electrochemical solvent. Phys Chem Chem Phys 2017; 19:9270-9280. [DOI: 10.1039/c6cp08799j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Tang ZK, Tse JS, Liu LM. Unusual Li-Ion Transfer Mechanism in Liquid Electrolytes: A First-Principles Study. J Phys Chem Lett 2016; 7:4795-4801. [PMID: 27934207 DOI: 10.1021/acs.jpclett.6b02351] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Liquid electrolytes play an important role in commercial lithium-ion (Li-ion) batteries as a conduit for Li-ion transfer between anodes and cathodes. It is generally believed that the Li-ions move along with the salt ions; thus, Li-ion diffusion is only affected by the viscosity and salt concentration in the liquid electrolytes based on the Stokes-Einstein equation. In this study, a novel and faster Li-ion diffusion mechanism in electrolytes containing a cyanogen group is identified from first-principles molecular dynamics (FPMD) simulations. In this mechanism, the Li-ions are first detached from the Li-salt and then diffuse along with the solvent molecules, and the Li-ion diffusion does not obey the traditional Stokes-Einstein equation. The ionic conductivity of the electrolyte systems with this "solvent-assisted Li-ion diffusion" mechanism is further enhanced through Li-ion hopping. This novel Li-ion diffusion process explains recent findings of high Li-ion conductivity in electrolytes with cyanogen groups and furnishes a new paradigm for the design of fast-charging liquid electrolyte for Li-ion batteries.
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Affiliation(s)
- Zhen-Kun Tang
- Beijing Computational Science Research Center , Beijing 100084, China
- College of Physics and Electronics Engineering, Hengyang Normal University , Hengyang 421008, China
| | - John S Tse
- Beijing Computational Science Research Center , Beijing 100084, China
- Department of Physics and Engineering Physics, University of Saskatchewan , Saskatoon, Saskatchewan, Canada S7N 5E2
| | - Li-Min Liu
- Beijing Computational Science Research Center , Beijing 100084, China
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26
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Yamaguchi T, Yonezawa T, Yoshida K, Yamaguchi T, Nagao M, Faraone A, Seki S. Relationship between Structural Relaxation, Shear Viscosity, and Ionic Conduction of LiPF6/Propylene Carbonate Solutions. J Phys Chem B 2015; 119:15675-82. [DOI: 10.1021/acs.jpcb.5b08701] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tsuyoshi Yamaguchi
- Department of Molecular Design and Engineering, Graduate
School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8603, Japan
| | - Takuya Yonezawa
- Department of Molecular Design and Engineering, Graduate
School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8603, Japan
| | - Koji Yoshida
- Department of Chemistry, Faculty of Science, Fukuoka University, Nanakuma, Jonan, Fukuoka 814-0180, Japan
| | - Toshio Yamaguchi
- Department of Chemistry, Faculty of Science, Fukuoka University, Nanakuma, Jonan, Fukuoka 814-0180, Japan
| | - Michihiro Nagao
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102, United States
- Center
for Exploration of Energy and Matter, Indiana University, Bloomington, Indiana 47408-1398, United States
| | - Antonio Faraone
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102, United States
| | - Shiro Seki
- Materials Science Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), 2-11-1, Iwado-kita, Komae, Tokyo 201-8511, Japan
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27
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28
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Richardson P, Voice A, Ward I. Pulsed-Field Gradient NMR Self Diffusion and Ionic Conductivity Measurements for Liquid Electrolytes Containing LiBF4 and Propylene Carbonate. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.03.072] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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29
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Marekha BA, Kalugin ON, Bria M, Buchner R, Idrissi A. Translational Diffusion in Mixtures of Imidazolium ILs with Polar Aprotic Molecular Solvents. J Phys Chem B 2014; 118:5509-17. [DOI: 10.1021/jp501561s] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bogdan A. Marekha
- Department
of Inorganic Chemistry, V.N. Karazin Kharkiv National University, Svoboda sq., 4, Kharkiv 61022, Ukraine
- University Nord de France, Lille1,
LASIR (UMR CNRS A8516), Bât.
C5, 59655 Villeneuve
d’Ascq Cedex, France
| | - Oleg N. Kalugin
- Department
of Inorganic Chemistry, V.N. Karazin Kharkiv National University, Svoboda sq., 4, Kharkiv 61022, Ukraine
| | - Marc Bria
- University Nord de France, Lille1,
CCM RMN, Bât. C4, Villeneuve d’Ascq 59650, France
| | - Richard Buchner
- Institute of Physical
and Theoretical Chemistry, University of Regensburg, 93040 Regensburg, Germany
| | - Abdenacer Idrissi
- University Nord de France, Lille1,
LASIR (UMR CNRS A8516), Bât.
C5, 59655 Villeneuve
d’Ascq Cedex, France
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30
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Zhang C, Ueno K, Yamazaki A, Yoshida K, Moon H, Mandai T, Umebayashi Y, Dokko K, Watanabe M. Chelate Effects in Glyme/Lithium Bis(trifluoromethanesulfonyl)amide Solvate Ionic Liquids. I. Stability of Solvate Cations and Correlation with Electrolyte Properties. J Phys Chem B 2014; 118:5144-53. [DOI: 10.1021/jp501319e] [Citation(s) in RCA: 169] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Ce Zhang
- Department
of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Kazuhide Ueno
- Department
of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Azusa Yamazaki
- Department
of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Kazuki Yoshida
- Department
of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Heejoon Moon
- Department
of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Toshihiko Mandai
- Department
of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Yasuhiro Umebayashi
- Graduate
School of Science and Technology, Niigata University, 8050 Ikarashi
2no-cho, Nishi-ku, Niigata 950-2181, Japan
| | - Kaoru Dokko
- Department
of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Masayoshi Watanabe
- Department
of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
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31
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Volkov VI, Marinin AA. NMR methods for studying ion and molecular transport in polymer electrolytes. RUSSIAN CHEMICAL REVIEWS 2013. [DOI: 10.1070/rc2013v082n03abeh004278] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Takeuchi M, Matubayasi N, Kameda Y, Minofar B, Ishiguro SI, Umebayashi Y. Free-Energy and Structural Analysis of Ion Solvation and Contact Ion-Pair Formation of Li+ with BF4– and PF6– in Water and Carbonate Solvents. J Phys Chem B 2012; 116:6476-87. [DOI: 10.1021/jp3011487] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Munetaka Takeuchi
- Department of Chemistry, Faculty
of Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Nobuyuki Matubayasi
- Institute for Chemical Research,
Kyoto University, Uji, Kyoto 611-0011, Japan
- Japan Science and Technology
Agency (JST), CREST, Kawaguchi, Saitama 332-0012, Japan
| | - Yasuo Kameda
- Department of Material and Biological
Chemistry, Faculty of Science, Yamagata University, Yamagata 990-8560,
Japan
| | - Babak Minofar
- Department of Chemistry, Faculty
of Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Shin-ichi Ishiguro
- Department of Chemistry, Faculty
of Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Yasuhiro Umebayashi
- Department of Chemistry, Faculty
of Science, Kyushu University, Fukuoka 812-8581, Japan
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33
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Tsuzuki S. Factors Controlling the Diffusion of Ions in Ionic Liquids. Chemphyschem 2012; 13:1664-70. [DOI: 10.1002/cphc.201100870] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 03/23/2012] [Indexed: 11/08/2022]
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34
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Anouti M, Jacquemin J, Porion P. Transport Properties Investigation of Aqueous Protic Ionic Liquid Solutions through Conductivity, Viscosity, and NMR Self-Diffusion Measurements. J Phys Chem B 2012; 116:4228-38. [DOI: 10.1021/jp3010844] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mérièm Anouti
- Laboratoire PCMB (EA 4244),
équipe (CIME), Université François Rabelais, Parc de Grandmont 37200 Tours, France
| | - Johan Jacquemin
- The QULL Research Centre, School
of Chemistry and Chemical Engineering, Queen’s University of Belfast, Stranmillis Road, Belfast BT9
5AG, United Kingdom
| | - Patrice Porion
- Centre
de Recherche sur la Matière
Divisée, CNRS-Université d’Orléans, UMR6619, 1b rue de la Férollerie, 45071 Orléans Cedex
2, France
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35
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Hayamizu K, Tsuzuki S, Seki S, Umebayashi Y. Nuclear magnetic resonance studies on the rotational and translational motions of ionic liquids composed of 1-ethyl-3-methylimidazolium cation and bis(trifluoromethanesulfonyl)amide and bis(fluorosulfonyl)amide anions and their binary systems including lithium salts. J Chem Phys 2011; 135:084505. [PMID: 21895197 DOI: 10.1063/1.3625923] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Room temperature ionic liquids (ILs) are stable liquids composed of anions and cations. 1-ethyl-3-methyl-imidazolium (EMIm, EMI) is a popular and important cation that produces thermally stable ILs with various anions. In this study two amide-type anions, bis(trifluoro-methanesulfonyl)amide [N(SO(2)CF(3))(2), TFSA, TFSI, NTf(2), or Tf(2)N] and bis(fluorosulfonyl)amide [(N(SO(2)F)(2), FSA, or FSI] were investigated by multinuclear NMR spectroscopy. In addition to EMIm-TFSA and EMIm-FSA, lithium-salt-doped binary systems were prepared (EMIm-TFSA-Li and EMIm-FSA-Li). The spin-lattice relaxation times (T(1)) were measured by (1)H, (19)F, and (7)Li NMR spectroscopy and the correlation times of (1)H NMR, τ(c)(EMIm) (8 × 10(-10) to 3 × 10(-11) s) for the librational molecular motion of EMIm and those of (7)Li NMR, τ(c)(Li) (5 × 10(-9) to 2 × 10(-10) s) for a lithium jump were evaluated in the temperature range between 253 and 353 K. We found that the bulk viscosity (η) versus τ(c)(EMIm) and cation diffusion coefficient D(EMIm) versus the rate 1/τ(c)(EMIm) have good relationships. Similarly, linear relations were obtained for the η versus τ(c)(Li) and the lithium diffusion coefficient D(Li) versus the rate 1∕τ(c)(Li). The mean one-jump distances of Li were calculated from τ(c)(Li) and D(Li). The experimental values for the diffusion coefficients, ionic conductivity, viscosity, and density in our previous paper were analyzed by the Stokes-Einstein, Nernst-Einstein, and Stokes-Einstein-Debye equations for the neat and binary ILs to clarify the physicochemical properties and mobility of individual ions. The deviations from the classical equations are discussed.
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Affiliation(s)
- Kikuko Hayamizu
- National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Center 5, Tsukuba 305-8565, Japan.
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36
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D'Agostino C, Harris RC, Abbott AP, Gladden LF, Mantle MD. Molecular motion and ion diffusion in choline chloride based deep eutectic solvents studied by 1H pulsed field gradient NMR spectroscopy. Phys Chem Chem Phys 2011; 13:21383-91. [DOI: 10.1039/c1cp22554e] [Citation(s) in RCA: 310] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Hayamizu K, Tsuzuki S, Seki S, Fujii K, Suenaga M, Umebayashi Y. Studies on the translational and rotational motions of ionic liquids composed of N-methyl-N-propyl-pyrrolidinium (P13) cation and bis(trifluoromethanesulfonyl)amide and bis(fluorosulfonyl)amide anions and their binary systems including lithium salts. J Chem Phys 2010; 133:194505. [DOI: 10.1063/1.3505307] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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38
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Ananikov VP. Characterization of Molecular Systems and Monitoring of Chemical Reactions in Ionic Liquids by Nuclear Magnetic Resonance Spectroscopy. Chem Rev 2010; 111:418-54. [DOI: 10.1021/cr9000644] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Valentine P. Ananikov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow 119991, Russia
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39
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Takeuchi M, Kameda Y, Umebayashi Y, Ogawa S, Sonoda T, Ishiguro SI, Fujita M, Sano M. Ion–ion interactions of LiPF6 and LiBF4 in propylene carbonate solutions. J Mol Liq 2009. [DOI: 10.1016/j.molliq.2009.07.003] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Seki S, Hayamizu K, Tsuzuki S, Fujii K, Umebayashi Y, Mitsugi T, Kobayashi T, Ohno Y, Kobayashi Y, Mita Y, Miyashiro H, Ishiguro SI. Relationships between center atom species (N, P) and ionic conductivity, viscosity, density, self-diffusion coefficient of quaternary cation room-temperature ionic liquids. Phys Chem Chem Phys 2009; 11:3509-14. [DOI: 10.1039/b820343a] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Umebayashi Y, Mitsugi T, Fukuda S, Fujimori T, Fujii K, Kanzaki R, Takeuchi M, Ishiguro SI. Lithium Ion Solvation in Room-Temperature Ionic Liquids Involving Bis(trifluoromethanesulfonyl) Imide Anion Studied by Raman Spectroscopy and DFT Calculations. J Phys Chem B 2007; 111:13028-32. [DOI: 10.1021/jp076869m] [Citation(s) in RCA: 285] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yasuhiro Umebayashi
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Takushi Mitsugi
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Shuhei Fukuda
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Takao Fujimori
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Kenta Fujii
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Ryo Kanzaki
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Munetaka Takeuchi
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Shin-Ichi Ishiguro
- Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
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Tokuda H, Tsuzuki S, Susan MABH, Hayamizu K, Watanabe M. How ionic are room-temperature ionic liquids? An indicator of the physicochemical properties. J Phys Chem B 2007; 110:19593-600. [PMID: 17004825 DOI: 10.1021/jp064159v] [Citation(s) in RCA: 668] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Room-temperature ionic liquids (RTILs) are liquids consisting entirely of ions, and their important properties, e.g., negligible vapor pressure, are considered to result from the ionic nature. However, we do not know how ionic the RTILs are. The ionic nature of the RTILs is defined in this study as the molar conductivity ratio (Lambda(imp)/Lambda(NMR)), calculated from the molar conductivity measured by the electrochemical impedance method (Lambda(imp)) and that estimated by use of pulse-field-gradient spin-echo NMR ionic self-diffusion coefficients and the Nernst-Einstein relation (Lambda(NMR)). This ratio is compared with solvatochromic polarity scales: anionic donor ability (Lewis basicity), E(T)(30), hydrogen bond donor acidity (alpha), and dipolarity/polarizability (pi), as well as NMR chemical shifts. The Lambda(imp)/Lambda(NMR) well illustrates the degree of cation-anion aggregation in the RTILs at equilibrium, which can be explained by the effects of anionic donor and cationic acceptor abilities for the RTILs having different anionic and cationic backbone structures with fixed counterparts, and by the inductive and dispersive forces for the various alkyl chain lengths in the cations. As a measure of the electrostatic interaction of the RTILs, the effective ionic concentration (C(eff)), which is a dominant parameter for the electrostatic forces of the RTILs, was introduced as the product of Lambda(imp)/Lambda(NMR) and the molar concentration and was compared with some physical properties, such as reported normal boiling points and distillation rates, glass transition temperature, and viscosity. A decrease in C(eff) of the RTILs is well correlated with the normal boiling point and distillation rate, whereas the liquid-state dynamics is controlled by a subtle balance between the electrostatic and other intermolecular forces.
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Affiliation(s)
- Hiroyuki Tokuda
- Department of Chemistry and Biotechnology, Yokohama National University, and CREST-JST, 79-5 Tokiwadai, Yokohama 240-8501, Japan
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Kameda Y, Umebayashi Y, Takeuchi M, Wahab MA, Fukuda S, Ishiguro SI, Sasaki M, Amo Y, Usuki T. Solvation Structure of Li+ in Concentrated LiPF6−Propylene Carbonate Solutions. J Phys Chem B 2007; 111:6104-9. [PMID: 17497919 DOI: 10.1021/jp072597b] [Citation(s) in RCA: 120] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Time-of-flight neutron diffraction measurements were carried out for 6Li/7Li isotopically substituted 10 mol % LiPF6-propylene carbonate-d6 (PC-d6) solutions, in order to obtain structural information on the first solvation shell of Li+. Structural parameters concerning the nearest neighbor Li+...PC and Li+...PF6- interactions were determined through least-squares fitting analysis of the observed difference function, DeltaLi(Q). It has been revealed that the first solvation shell of Li+ consists in average of 4.5(1) PC molecules with an intermolecular Li+...O(PC) distance of 2.04(1) A. The angle Li+...O=C bond angle has been determined to be 138(2) degrees.
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Hayamizu K, Aihara Y. ELECTROCHEMISTRY 2007; 75:75-79. [DOI: 10.5796/electrochemistry.75.75] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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46
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Aihara Y, Sonai A, Hattori M, Hayamizu K. Ion Conduction Mechanisms and Thermal Properties of Hydrated and Anhydrous Phosphoric Acids Studied with 1H, 2H, and 31P NMR. J Phys Chem B 2006; 110:24999-5006. [PMID: 17149922 DOI: 10.1021/jp064452v] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
To understand the behaviors of phosphoric acids in fuel cells, the ion conduction mechanisms of phosphoric acids in condensed states without free water and in a monomer state with water were studied by measuring the ionic conductivity (sigma) using AC impedance, thermal properties, and self-diffusion coefficients (D) and spin-lattice relaxation times (T1) with multinuclear NMR. The self-diffusion coefficient of the protons (H+ or H3O+), H2O, and H located around the phosphate were always larger than the diffusion coefficients of the phosphates and the disparity increased with increasing phosphate concentration. The diffusion coefficients of the samples containing D2O paralleled those in the protonated samples. Since the 1H NMR T1 values exhibited a minimum with temperature, it was possible to determine the correlation times and they were found to be of nanosecond order for a distance of nanometer order for a flip. The agreement of the ionic conductivities measured directly and those calculated from the diffusion coefficients indicates that the ion conduction obeys the Nernst-Einstein equation in the condensed phosphoric acids. The proton diffusion plays a dominant role in the ion conduction, especially in the condensed phosphoric acids.
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Affiliation(s)
- Yuichi Aihara
- Samsung Yokohama Research Institute, Yokohama 230-0027, Japan.
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Hayamizu K, Seki S, Miyashiro H, Kobayashi Y. Direct in Situ Observation of Dynamic Transport for Electrolyte Components by NMR Combined with Electrochemical Measurements. J Phys Chem B 2006; 110:22302-5. [PMID: 17091966 DOI: 10.1021/jp065616a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrochemical studies provide broad, but not cation- or anion-specific information on the migration of charged ions. However, individual ion diffusion (as a weighted average of charged and neutral ions) can be measured using pulsed-gradient spin-echo (PGSE) NMR. In this paper, the lithium transport in an electrolyte including a lithium salt was measured using electrophoretic NMR (ENMR) with non-blocking electrodes. A propylene carbonate (PC) solution doped with LiN(SO(2)CF(3))(2) (LiTFSI) was inserted in a homemade NMR cell equipped with Li/Li electrodes. The drift migrations of lithium cation ((7)Li), anion ((19)F), and solvent ((1)H) were measured independently under potentials of up to 3.0 V. Greatly enhanced dynamic lithium transport was observed for the first time in the bulk electrolyte under an electric field closely related to real conditions in a rechargeable lithium battery.
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Hayamizu K, Aihara Y, Nakagawa H, Nukuda T, Price WS. Ionic Conduction and Ion Diffusion in Binary Room-Temperature Ionic Liquids Composed of [emim][BF4] and LiBF4. J Phys Chem B 2004. [DOI: 10.1021/jp0476601] [Citation(s) in RCA: 263] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kikuko Hayamizu
- National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Center 5, Tsukuba 305-8565, Japan
| | - Yuichi Aihara
- Yuasa Corporation, 4-5-1 Ohgi-cho, Odawara, Kanagawa 250-0001, Japan
| | - Hiroe Nakagawa
- Yuasa Corporation, 4-5-1 Ohgi-cho, Odawara, Kanagawa 250-0001, Japan
| | - Toshiyuki Nukuda
- Yuasa Corporation, 4-5-1 Ohgi-cho, Odawara, Kanagawa 250-0001, Japan
| | - William S. Price
- Nanoscale Organization and Dynamics Group, College of Science, Technology and Environment, University of Western Sydney, Penrith South, NSW 1797, Australia
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Tokuda H, Hayamizu K, Ishii K, Susan MABH, Watanabe M. Physicochemical Properties and Structures of Room Temperature Ionic Liquids. 1. Variation of Anionic Species. J Phys Chem B 2004. [DOI: 10.1021/jp047480r] [Citation(s) in RCA: 1112] [Impact Index Per Article: 55.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hayamizu K, Aihara Y. Ion and solvent diffusion and ion conduction of PC-DEC and PC-DME binary solvent electrolytes of LiN(SO2CF3)2. Electrochim Acta 2004. [DOI: 10.1016/j.electacta.2004.03.007] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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