1
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Rana R, Ali SM, Maity DK. Structure and dynamics of the Li + ion in water, methanol and acetonitrile solvents: ab initio molecular dynamics simulations. Phys Chem Chem Phys 2023; 25:31382-31395. [PMID: 37961866 DOI: 10.1039/d3cp04403c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Fundamental understanding of the structure and dynamics of the Li+ ion in solution is of utmost importance in different fields of science and technology, especially in the field of ion batteries. In view of this, ab initio molecular dynamics (AIMD) simulations of the LiCl salt in water, methanol and acetonitrile were performed to elucidate structural parameters such as radial distribution function and coordination number, and dynamical properties like diffusion coefficient, limiting ion conductivity and hydrogen bond correlation function. In the present AIMD simulation, one LiCl in water is equivalent to 0.8 M, which is close to the concentration of the lithium salt used in the Li-ion battery. The first sphere of coordination number of the Li+ ion was reaffirmed to be 4. The radial distribution function for different pairs of atoms is seen to be in good agreement with the experimental results. The calculated potential of mean force indicates the stronger interaction of the Li+ ion with methanol over water followed by acetonitrile. The dynamical parameters convey quite high diffusion and limiting ionic conductivity of the Li+ ion in acetonitrile compared to that in water and methanol which has been attributed to the transport of the Li-Cl ion pair in a non-dissociated form in acetonitrile. The AIMD results were found to be in accordance with the experimental findings, i.e. the limiting ion conductivity was found to follow the order acetonitrile > methanol > water. This study shows the importance of atomistic level simulations in evaluating the structural and dynamical parameters and in implementing the results for predicting and synthesizing better next generation solvents for lithium ion batteries (LIBs).
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Affiliation(s)
- Reman Rana
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
| | - Sk Musharaf Ali
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
- Chemical Engineering Division, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - Dilip K Maity
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
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2
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Farag H, Kaur AP, Robertson LA, Sarnello E, Liu X, Wang Y, Cheng L, Shkrob IA, Zhang L, Ewoldt RH, Li T, Odom SA, Y Z. Softening by charging: how collective modes of ionic association in concentrated redoxmer/electrolyte solutions define the structural and dynamic properties in different states of charge. Phys Chem Chem Phys 2023; 25:4243-4254. [PMID: 36661750 DOI: 10.1039/d2cp04220g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Understanding the physical and chemical processes occurring in concentrated electrolyte solutions is required to achieve redox flow batteries with high energy density. Highly concentrated electrolyte solutions are often studied in which collective crowded interactions between molecules and ions become predominant. Herein, experimental and computational methods were used to examine non-aqueous electrolyte solutions in two different states of charge as a function of redoxmer concentration. As the latter increases and the ionic association strengthens, the electric conductivity passes through a maximum and the solution increasingly gels, which is seen through a rapid non-linear increase in viscosity. We establish that the structural rigidity of ionic networks is closely connected with this loss of fluidity and show that charging generally yields softer ionic assemblies with weaker attractive forces and improved dynamical properties.
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Affiliation(s)
- Hossam Farag
- Joint Center for Energy Storage Research.,Department of Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA. .,Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Aman Preet Kaur
- Joint Center for Energy Storage Research.,Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Lily A Robertson
- Joint Center for Energy Storage Research.,Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Erik Sarnello
- Joint Center for Energy Storage Research.,Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, USA
| | - Xinyi Liu
- Joint Center for Energy Storage Research.,Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, USA
| | - Yilin Wang
- Joint Center for Energy Storage Research.,Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.,Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Lei Cheng
- Joint Center for Energy Storage Research.,Materials Sciences Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Ilya A Shkrob
- Joint Center for Energy Storage Research.,Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Lu Zhang
- Joint Center for Energy Storage Research.,Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Randy H Ewoldt
- Joint Center for Energy Storage Research.,Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.,Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Tao Li
- Joint Center for Energy Storage Research.,X-ray Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA.,Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, USA
| | - Susan A Odom
- Joint Center for Energy Storage Research.,Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Y Z
- Joint Center for Energy Storage Research.,Department of Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA. .,Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.,Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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3
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Tesio AY, Torres W, Villalba M, Davia F, del Pozo M, Córdoba D, Williams FJ, Calvo EJ. Role of Superoxide and Singlet Oxygen on the Oxygen Reduction Pathways in Li−O
2
Cathodes at Different Li
+
Ion Concentration**. ChemElectroChem 2022. [DOI: 10.1002/celc.202201037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Alvaro Y. Tesio
- INQUIMAE (CONICET) DQIAyQF Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Buenos Aires, 1428 Argentina
| | - Walter Torres
- INQUIMAE (CONICET) DQIAyQF Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Buenos Aires, 1428 Argentina
| | - Matías Villalba
- INQUIMAE (CONICET) DQIAyQF Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Buenos Aires, 1428 Argentina
| | - Federico Davia
- INQUIMAE (CONICET) DQIAyQF Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Buenos Aires, 1428 Argentina
| | - María del Pozo
- INQUIMAE (CONICET) DQIAyQF Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Buenos Aires, 1428 Argentina
| | - Daniel Córdoba
- INQUIMAE (CONICET) DQIAyQF Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Buenos Aires, 1428 Argentina
| | - Federico J. Williams
- INQUIMAE (CONICET) DQIAyQF Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Buenos Aires, 1428 Argentina
| | - Ernesto J. Calvo
- INQUIMAE (CONICET) DQIAyQF Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Buenos Aires, 1428 Argentina
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4
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Didar BR, Groß A. Solvation structure and dynamics of Li and LiO2 and their transformation in non-aqueous organic electrolyte solvents from first-principles simulations. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(22)64098-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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5
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Jerng SE, Gallant BM. Electrochemical reduction of CO 2 in the captured state using aqueous or nonaqueous amines. iScience 2022; 25:104558. [PMID: 35747389 PMCID: PMC9209719 DOI: 10.1016/j.isci.2022.104558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
CO2 capture and its electrochemical conversion have historically developed as two distinct technologies and scientific fields. Each process possesses unique energy penalties, inefficiencies, and costs, which accrue along the mitigation pathway from emissions to product. Recently, the concept of integrating CO2 capture and electrochemical conversion, or "electrochemically reactive capture," has aroused attention following early laboratory-scale proofs-of-concept. However, the integration of the two processes introduces new complexities at a basic science and engineering level, many of which have yet to be clearly defined. The key parameters to guide reaction, electrolyte, electrode, and system design would, therefore, benefit from delineation. To begin this effort, this perspective outlines several crucial physicochemical and electrochemical considerations, where we argue that the absence of basic knowledge leaves the field of designing metaphorically in the dark. The considerations make clear that there is ample need for fundamental science that can better inform design, following which the potential impacts of integration can be rigorously assessed beyond what is possible at present.
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Affiliation(s)
- Sung Eun Jerng
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Betar M. Gallant
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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6
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Silva JFL, Policano MC, Tonon GC, Anchieta CG, Doubek G, Filho RM. The Potential of Hydrophobic Membranes in Enabling the Operation of Lithium-Air Batteries with Ambient Air. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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7
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Zhang B, Jia Y, Zhou Y, Ye S, Yan T, Gao XP. The fluctuating standard potential of lithium in organic solvents. Chem Commun (Camb) 2022; 58:4747-4750. [PMID: 35332351 DOI: 10.1039/d2cc00769j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The standard potential of a lithium metal electrode versus the standard hydrogen electrode was calculated by constructing the thermodynamic cycle in a hypothetical electrochemical cell with a dual-phase electrolyte. It is demonstrated that the standard potential of the lithium metal electrode can fluctuate over 0.5 V in different organic solvents, and is correlated to the modified donor number by the entropy of fusion of the solvents.
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Affiliation(s)
- Bohai Zhang
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Yunzhe Jia
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Yuhao Zhou
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Shihai Ye
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Tianying Yan
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Xue-Ping Gao
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China.
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8
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Hase Y, Nishioka K, Komori Y, Kusumoto T, Seki J, Kamiya K, Nakanishi S. Synergistic Effect of Binary Electrolyte on Enhancement of the Energy Density in Li-O 2 Batteries. J Phys Chem Lett 2020; 11:7657-7663. [PMID: 32830981 DOI: 10.1021/acs.jpclett.0c01877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Enhancement of the discharge capacity of lithium-oxygen batteries (LOBs) while maintaining a high cell voltage is an important challenge to overcome to achieve an ideal energy density. Both the cell voltage and discharge capacity of an LOB could be controlled by employing a binary solvent electrolyte composed of dimethyl sulfoxide (DMSO) and acetonitrile (MeCN), whereby an energy density 3.2 times higher than that of the 100 vol % DMSO electrolyte was obtained with an electrolyte containing 50 vol % of DMSO. The difference in the solvent species that preferentially solvates Li+ and that which controls the adsorption-desorption equilibrium of the discharge reaction intermediate, LiO2, on the cathode/electrolyte interface provides these unique properties of the binary solvent electrolyte. Combined spectroscopic and electrochemical analysis have revealed that the solvated complex of Li+ and the environment of the cathode/electrolyte interface were the determinants of the cell voltage and discharge capacity, respectively.
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Affiliation(s)
- Yoko Hase
- Toyota Central R&D Laboratories., Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - Kiho Nishioka
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Yasuhiro Komori
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Takayoshi Kusumoto
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Juntaro Seki
- Toyota Central R&D Laboratories., Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - Kazuhide Kamiya
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Shuji Nakanishi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
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9
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Effect of Salt Concentration, Solvent Donor Number and Coordination Structure on the Variation of the Li/Li+ Potential in Aprotic Electrolytes. ENERGIES 2020. [DOI: 10.3390/en13061470] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The use of concentrated aprotic electrolytes in lithium batteries provides numerous potential applications, including the use of high-voltage cathodes and Li-metal anodes. In this paper, we aim at understanding the effect of salt concentration on the variation of the Li/Li+ Quasi-Reference Electrode (QRE) potential in Tetraglyme (TG)-based electrolytes. Comparing the obtained results to those achieved using Dimethyl sulfoxide DMSO-based electrolytes, we are now able to take a step forward and understand how the effect of solvent coordination and its donor number (DN) is attributed to the Li-QRE potential shift. Using a revised Nernst equation, the alteration of the Li redox potential with salt concentration was determined accurately. It is found that, in TG, the Li-QRE shift follows a different trend than in DMSO owing to the lower DN and expected shorter lifespan of the solvated cation complex.
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10
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Smirnov VS, Kislenko SA. Effect of Cation Size on Solvation and Association with Superoxide Anion in Aprotic Solvents. Chemphyschem 2019; 20:1960-1966. [PMID: 31189020 DOI: 10.1002/cphc.201900389] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/25/2019] [Indexed: 11/08/2022]
Abstract
Influence of cation size on solvation strength, diffusion, and kinetics of the association reaction with anions O2 - in aprotic solvents, such as acetonitrile and dimethyl sulfoxide, has been investigated by means of molecular dynamics simulations. The work is motivated by the need to understand the molecular nature of the solvent-induced changes in capacity of Li-air batteries. We have shown that the dependence of the solvation shell stability on the cation size has a maximum at a particular ion radius that corresponds to a solvent coordination number of 4. The shell stability maximum coincides with the diffusion coefficient minimum. The variation of the cation shell stability has a crucial impact on the kinetics of the cation-O2 - association. We have demonstrated that profound inhibition of the association reaction for Li+ in dimethyl sulfoxide is a result of the lock-and-key effect that cannot be described in the framework of Hard Soft Acid Base theory.
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Affiliation(s)
- Vladimir S Smirnov
- Joint Institute for High Temperatures of the, Russian Academy of Sciences, Izhorskaya st. 13 Bd.2, 125412, Moscow, Russian Federation.,Moscow Institute of Physics and Technology (State University), 9 Institutskiy per., Dolgoprudny, Moscow Region, 141701, Russian Federation
| | - Sergey A Kislenko
- Joint Institute for High Temperatures of the, Russian Academy of Sciences, Izhorskaya st. 13 Bd.2, 125412, Moscow, Russian Federation.,Moscow Institute of Physics and Technology (State University), 9 Institutskiy per., Dolgoprudny, Moscow Region, 141701, Russian Federation
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11
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Smirnov VS, Kislenko SA. Effect of Solvents on the Behavior of Lithium and Superoxide Ions in Lithium-Oxygen Battery Electrolytes. Chemphyschem 2017; 19:75-81. [DOI: 10.1002/cphc.201700980] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Vladimir S. Smirnov
- Joint Institute for High Temperatures of the; Russian Academy of Sciences; Izhorskaya 13 Bldg 2 Moscow 125412 Russia
- Moscow Institute of Physics and Technology; Institutskiy Pereulok 9 Dolgoprudny, Moscow Region 141700 Russia
| | - Sergey A. Kislenko
- Joint Institute for High Temperatures of the; Russian Academy of Sciences; Izhorskaya 13 Bldg 2 Moscow 125412 Russia
- Moscow Institute of Physics and Technology; Institutskiy Pereulok 9 Dolgoprudny, Moscow Region 141700 Russia
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12
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13
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Kuritz N, Murat M, Balaish M, Ein-Eli Y, Natan A. PFC and Triglyme for Li-Air Batteries: A Molecular Dynamics Study. J Phys Chem B 2016; 120:3370-7. [PMID: 26982570 DOI: 10.1021/acs.jpcb.5b12075] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this work, we present an all-atom molecular dynamics (MD) study of triglyme and perfluorinated carbons (PFCs) using classical atomistic force fields. Triglyme is a typical solvent used in nonaqueous Li-air battery cells. PFCs were recently reported to increase oxygen availability in such cells. We show that O2 diffusion in two specific PFC molecules (C6F14 and C8F18) is significantly faster than in triglyme. Furthermore, by starting with two very different initial configurations for our MD simulation, we demonstrate that C8F18 and triglyme do not mix. The mutual solubility of these molecules is evaluated both theoretically and experimentally, and a qualitative agreement is found. Finally, we show that the solubility of O2 in C8F18 is considerably higher than in triglyme. The significance of these results to Li-air batteries is discussed.
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Affiliation(s)
- Natalia Kuritz
- Department of Physical Electronics, Tel-Aviv University , Tel-Aviv 69978, Israel
| | - Michael Murat
- Department of Physical Electronics, Tel-Aviv University , Tel-Aviv 69978, Israel
| | - Moran Balaish
- The Grand Technion Energy Program, Technion - Israel Institute of Technology , Haifa 32000, Israel
| | - Yair Ein-Eli
- The Grand Technion Energy Program, Technion - Israel Institute of Technology , Haifa 32000, Israel
| | - Amir Natan
- Department of Physical Electronics, Tel-Aviv University , Tel-Aviv 69978, Israel
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14
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15
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Jung SH, Federici Canova F, Akagi K. Characteristics of Lithium Ions and Superoxide Anions in EMI-TFSI and Dimethyl Sulfoxide. J Phys Chem A 2016; 120:364-71. [DOI: 10.1021/acs.jpca.5b09692] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sun-ho Jung
- Advanced
Institute for Materials Research, Tohoku University, Katahira, Sendai, Japan
| | | | - Kazuto Akagi
- Advanced
Institute for Materials Research, Tohoku University, Katahira, Sendai, Japan
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16
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Pang C, Ding F, Sun W, Liu J, Hao M, Wang Y, Liu X, Xu Q. A novel dimethyl sulfoxide/1,3-dioxolane based electrolyte for lithium/carbon fluorides batteries with a high discharge voltage plateau. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.06.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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A conductivity study of preferential solvation of lithium ion in acetonitrile-dimethyl sulfoxide mixtures. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.12.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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