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Xiao B, Zheng Y, Song M, Liu X, Lee GH, Omenya F, Yang X, Engelhard MH, Reed D, Yang W, Amine K, Xu GL, Balbuena PB, Li X. Protonation Stimulates the Layered to Rock Salt Phase Transition of Ni-Rich Sodium Cathodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2308380. [PMID: 38134206 DOI: 10.1002/adma.202308380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/21/2023] [Indexed: 12/24/2023]
Abstract
Protonation of oxide cathodes triggers surface transition metal dissolution and accelerates the performance degradation of Li-ion batteries. While strategies are developed to improve cathode material surface stability, little is known about the effects of protonation on bulk phase transitions in these cathode materials or their sodium-ion battery counterparts. Here, using NaNiO2 in electrolytes with different proton-generating levels as model systems, a holistic picture of the effect of incorporated protons is presented. Protonation of lattice oxygens stimulate transition metal migration to the alkaline layer and accelerates layered-rock-salt phase transition, which leads to bulk structure disintegration and anisotropic surface reconstruction layers formation. A cathode that undergoes severe protonation reactions attains a porous architecture corresponding to its multifold performance fade. This work reveals that interactions between electrolyte and cathode that result in protonation can dominate the structural reversibility/stability of bulk cathodes, and the insight sheds light for the development of future batteries.
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Affiliation(s)
- Biwei Xiao
- Energy & Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Yu Zheng
- Department of Chemical Engineering, Texas A&M University, College Station, TX, 77843-3122, USA
- Department of Chemistry, Texas A&M University, College Station, TX, 77843-3122, USA
| | - Miao Song
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Xiang Liu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL, 60439, USA
| | - Gi-Hyeok Lee
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Department of Materials Science and Engineering, Dongguk University, Seoul, 04620, Republic of Korea
| | - Fred Omenya
- Energy & Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Xin Yang
- Energy & Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Mark H Engelhard
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - David Reed
- Energy & Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Wanli Yang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Khalil Amine
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL, 60439, USA
| | - Gui-Liang Xu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL, 60439, USA
| | - Perla B Balbuena
- Department of Chemical Engineering, Texas A&M University, College Station, TX, 77843-3122, USA
- Department of Chemistry, Texas A&M University, College Station, TX, 77843-3122, USA
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX, 77843-3122, USA
| | - Xiaolin Li
- Energy & Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
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2
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Li H, Zhu Y, Ye Q, Hu W, Zhou Q. First-principle study on the geometric and electronic structure of Mg-doped LiNiO 2 for Li-ion batteries. J Mol Model 2023; 29:389. [PMID: 38030739 DOI: 10.1007/s00894-023-05797-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023]
Abstract
CONTEXT Ni-rich layered oxides have been widely studied as cathodes because of their high energy density. However, the gradual structural transformation during the cycle will lead to the capacity degradation and potential decay of the cathode materials. In this paper, first-principle calculations were used to investigate the formation energy, and geometric and electronic structure of Mg-doped LiNiO2 cathode for Li-ion batteries. The results show that Mg doping has little effect on the geometric structure of LiNiO2 but has great effect on its electronic structure. Our data give an insight into the microscopic mechanism of Mg-doped LiNiO2 and provide a theoretical reference for experimental research, which is helpful to the design of safer and higher energy density Ni-rich cathodes. METHOD In this work, all calculations were performed by the VASP package; the PBE functional in the generalized gradient approximation (GGA) was employed to describe the exchange-correlation interactions. An energy cutoff of 520 eV and a 5 × 5 × 3 Monkhorst-Pack mesh of k-point sampling in the Brillouin zone were chosen for all calculations. All atoms were relaxed until the convergences of 10-5 eV/f.u in energy and 0.01 eV/Å in force were reached.
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Affiliation(s)
- Huili Li
- School of Computer Science, Jiangxi University of Chinese Medicine, Nanchang, 330004, People's Republic of China
| | - Yanchen Zhu
- School of Computer Science, Jiangxi University of Chinese Medicine, Nanchang, 330004, People's Republic of China
| | - Qing Ye
- School of Computer Science, Jiangxi University of Chinese Medicine, Nanchang, 330004, People's Republic of China.
| | - Wei Hu
- Key Laboratory of Green New Materials and Industrial Wastewater Treatment of Nanchang City, Yuzhang Normal University, Nanchang, 330103, People's Republic of China.
| | - Qinghua Zhou
- Department of Science Teaching, Jiangxi University of Technology, Nanchang, 330098, People's Republic of China
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3
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Zhou M, Zhao J, Wang X, Shen J, Tang W, Deng Y, Liu R. Surface engineering for high stable lithium-rich manganese-based cathode materials. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4
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Shibeshi PT, Bunuko WB, Chemeda YC. Li2MnO3 content effects on thermal, structural, electrical and electrochemical properties of xLi2MnO3-(1-x)LiNi0.9Zn0.1O2 cathode materials. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Cheon J, Park SH, Kim Y, Yim T. Aluminum oxide and ethylene bis(diphenylphosphine)‐incorporated poly(imide) separators for lithium‐ion batteries. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jaemun Cheon
- Advanced Batteries Laboratory, Department of Chemistry Incheon National University Incheon South Korea
- Research Institute of Basic Sciences, College of Natural Science Incheon National University Incheon South Korea
| | - Sang Heon Park
- Advanced Batteries Research Center Korea Electronics Technology Institute Seongnam South Korea
| | - Youngkwon Kim
- Advanced Batteries Research Center Korea Electronics Technology Institute Seongnam South Korea
| | - Taeeun Yim
- Advanced Batteries Laboratory, Department of Chemistry Incheon National University Incheon South Korea
- Research Institute of Basic Sciences, College of Natural Science Incheon National University Incheon South Korea
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6
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Reissig F, Lange MA, Haneke L, Placke T, Zeier WG, Winter M, Schmuch R, Gomez‐Martin A. Synergistic Effects of Surface Coating and Bulk Doping in Ni-Rich Lithium Nickel Cobalt Manganese Oxide Cathode Materials for High-Energy Lithium Ion Batteries. CHEMSUSCHEM 2022; 15:e202102220. [PMID: 34784118 PMCID: PMC9300204 DOI: 10.1002/cssc.202102220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/14/2021] [Indexed: 06/13/2023]
Abstract
Ni-rich layered oxide cathodes are promising candidates to satisfy the increasing energy demand of lithium-ion batteries for automotive applications. Thermal and cycling stability issues originating from increasing Ni contents are addressed by mitigation strategies such as elemental bulk substitution ("doping") and surface coating. Although both approaches separately benefit the cycling stability, there are only few reports investigating the combination of two of such approaches. Herein, the combination of Zr as common dopant in commercial materials with effective Li2 WO4 and WO3 coatings was investigated with special focus on the impact of different material processing conditions on structural parameters and electrochemical performance in nickel-cobalt-manganese (NCM) || graphite cells. Results indicated that the Zr4+ dopant diffusing to the surface during annealing improved the electrochemical performance compared to samples without additional coatings. This work emphasizes the importance to not only investigate the effect of individual dopants or coatings but also the influences between both.
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Affiliation(s)
- Friederike Reissig
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstr. 4648149MünsterGermany
| | - Martin Alexander Lange
- Department of ChemistryJohannes Gutenberg University MainzDuesbergweg 10–1455128MainzGermany
| | - Lukas Haneke
- MEET Battery Research CenterInstitute of Physical ChemistryUniversity of MünsterCorrensstr. 4648149MünsterGermany
| | - Tobias Placke
- MEET Battery Research CenterInstitute of Physical ChemistryUniversity of MünsterCorrensstr. 4648149MünsterGermany
| | - Wolfgang G. Zeier
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstr. 4648149MünsterGermany
- Institute of Physical ChemistryUniversity of MünsterCorrensstr. 3048149MünsterGermany
| | - Martin Winter
- Helmholtz Institute Münster, IEK-12Forschungszentrum Jülich GmbHCorrensstr. 4648149MünsterGermany
- MEET Battery Research CenterInstitute of Physical ChemistryUniversity of MünsterCorrensstr. 4648149MünsterGermany
| | - Richard Schmuch
- MEET Battery Research CenterInstitute of Physical ChemistryUniversity of MünsterCorrensstr. 4648149MünsterGermany
| | - Aurora Gomez‐Martin
- MEET Battery Research CenterInstitute of Physical ChemistryUniversity of MünsterCorrensstr. 4648149MünsterGermany
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7
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Xu J, Liu Z, Wei Z, Zhang S, Guo C, He M. 3D porous flower-like heterostructure of Fe doped Ni2P nanoparticles anchored on Al2O3 nanosheets as an ultrastable high-efficiency electrocatalyst. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136417] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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He Y, Pham H, Gao Y, Patel RL, Sarkar S, Liang X, Park J. Discovery of an Unexpected Metal Dissolution of Thin‐Coated Cathode Particles and Its Theoretical Explanation. ADVANCED THEORY AND SIMULATIONS 2020. [DOI: 10.1002/adts.202000002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yufang He
- Department of Mechanical Engineering and Aerospace Engineering Missouri University of Science and Technology Rolla 65401 USA
| | - Hiep Pham
- Department of Mechanical Engineering and Aerospace Engineering Missouri University of Science and Technology Rolla 65401 USA
| | - Yan Gao
- Department of Chemical and Biochemical Engineering Missouri University of Science and Technology Rolla 65401 USA
| | - Rajankumar L. Patel
- Department of Chemical and Biochemical Engineering Missouri University of Science and Technology Rolla 65401 USA
| | - Susmita Sarkar
- Department of Mechanical Engineering and Aerospace Engineering Missouri University of Science and Technology Rolla 65401 USA
| | - Xinhua Liang
- Department of Chemical and Biochemical Engineering Missouri University of Science and Technology Rolla 65401 USA
| | - Jonghyun Park
- Department of Mechanical Engineering and Aerospace Engineering Missouri University of Science and Technology Rolla 65401 USA
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9
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Bianchini M, Roca‐Ayats M, Hartmann P, Brezesinski T, Janek J. Hin und zurück – die Entwicklung von LiNiO
2
als Kathodenaktivmaterial. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812472] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Matteo Bianchini
- Battery and Electrochemistry Laboratory (BELLA)Institut für NanotechnologieKarlsruher Institut für Technologie (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
| | - Maria Roca‐Ayats
- Battery and Electrochemistry Laboratory (BELLA)Institut für NanotechnologieKarlsruher Institut für Technologie (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
| | - Pascal Hartmann
- Battery and Electrochemistry Laboratory (BELLA)Institut für NanotechnologieKarlsruher Institut für Technologie (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
- BASF SE 67056 Ludwigshafen Deutschland
| | - Torsten Brezesinski
- Battery and Electrochemistry Laboratory (BELLA)Institut für NanotechnologieKarlsruher Institut für Technologie (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
| | - Jürgen Janek
- Battery and Electrochemistry Laboratory (BELLA)Institut für NanotechnologieKarlsruher Institut für Technologie (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
- Institut für Physikalische Chemie &, Zentrum für Materialwissenschaften (ZfM/LaMa)Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen Deutschland
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10
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Bianchini M, Roca-Ayats M, Hartmann P, Brezesinski T, Janek J. There and Back Again-The Journey of LiNiO 2 as a Cathode Active Material. Angew Chem Int Ed Engl 2019; 58:10434-10458. [PMID: 30537189 DOI: 10.1002/anie.201812472] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Indexed: 11/09/2022]
Abstract
This Review provides a comprehensive overview of LiNiO2 (LNO), almost 30 years after its introduction as a cathode active material. We aim to highlight the physicochemical peculiarities that make LNO a complex material in every aspect. We specifically stress the effect of the Li off-stoichiometry (Li1-z Ni1+z O2 ) on every property of LNO, especially the electrochemical ones. The key instability issues that plague the compound and the strategies that have been implemented so far to overcome them are discussed in detail. Finally, the open questions that remain to be addressed by the scientific community are summarized, and the research directions that seem the most promising to enable LNO to be fully exploited are elucidated.
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Affiliation(s)
- Matteo Bianchini
- Battery and Electrochemistry Laboratory (BELLA), Institute of Nanotechnology, Karlsruhe Institute for Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Maria Roca-Ayats
- Battery and Electrochemistry Laboratory (BELLA), Institute of Nanotechnology, Karlsruhe Institute for Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Pascal Hartmann
- Battery and Electrochemistry Laboratory (BELLA), Institute of Nanotechnology, Karlsruhe Institute for Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,BASF SE, 67056, Ludwigshafen, Germany
| | - Torsten Brezesinski
- Battery and Electrochemistry Laboratory (BELLA), Institute of Nanotechnology, Karlsruhe Institute for Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Jürgen Janek
- Battery and Electrochemistry Laboratory (BELLA), Institute of Nanotechnology, Karlsruhe Institute for Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute of Physical Chemistry &, Center for Materials Science (ZfM/LaMa), Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
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11
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Unexpectedly high energy density of a Li-Ion battery by oxygen redox in LiNiO2 cathode: First-principles study. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.10.113] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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12
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Li Z, Luo C, Wang C, Jiang G, Chen J, Zhong S, Zhang Q, Li D. Effects of Nb substitution on structure and electrochemical properties of LiNi0.7Mn0.3O2 cathode materials. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-3975-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Sosso GC, Deringer VL, Elliott SR, Csányi G. Understanding the thermal properties of amorphous solids using machine-learning-based interatomic potentials. MOLECULAR SIMULATION 2018. [DOI: 10.1080/08927022.2018.1447107] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Gabriele C. Sosso
- Department of Chemistry and Centre for Scientific Computing, University of Warwick , Coventry, UK
| | - Volker L. Deringer
- Department of Engineering, University of Cambridge , Cambridge, UK
- Department of Chemistry, University of Cambridge , Cambridge, UK
| | | | - Gábor Csányi
- Department of Engineering, University of Cambridge , Cambridge, UK
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14
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Kang J, Noh SH, Hwang J, Chun H, Kim H, Han B. First-principles database driven computational neural network approach to the discovery of active ternary nanocatalysts for oxygen reduction reaction. Phys Chem Chem Phys 2018; 20:24539-24544. [DOI: 10.1039/c8cp03801e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An elegant machine-learning-based algorithm was applied to study the thermo-electrochemical properties of ternary nanocatalysts for oxygen reduction reaction (ORR).
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Affiliation(s)
- Joonhee Kang
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 03722
- Korea
| | - Seung Hyo Noh
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 03722
- Korea
| | - Jeemin Hwang
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 03722
- Korea
| | - Hoje Chun
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 03722
- Korea
| | - Hansung Kim
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 03722
- Korea
| | - Byungchan Han
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 03722
- Korea
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15
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Choi D, Kang J, Park J, Han B. First-principles study on thermodynamic stability of the hybrid interfacial structure of LiMn2O4 cathode and carbonate electrolyte in Li-ion batteries. Phys Chem Chem Phys 2018; 20:11592-11597. [DOI: 10.1039/c7cp08037a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using first-principles calculations, we examine the electrochemical interfaces of electrode and electrolyte in Li-ion batteries (LIBs).
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Affiliation(s)
- Daehyeon Choi
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 03722
- Republic of Korea
| | - Joonhee Kang
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 03722
- Republic of Korea
| | - Jinwoo Park
- Graphene Research Institute and Department of Physics
- Sejong University
- Seoul 05006
- Republic of Korea
| | - Byungchan Han
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 03722
- Republic of Korea
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16
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Cho E, Seo SW, Min K. Theoretical Prediction of Surface Stability and Morphology of LiNiO 2 Cathode for Li Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2017; 9:33257-33266. [PMID: 28895392 DOI: 10.1021/acsami.7b08563] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Ni-rich layered oxides are considered to be a promising cathode material with high capacity, and their surface structure should be extensively explored to understand the complex associated phenomena. We investigated the surface stability and morphology of LiNiO2 as a representative of these materials by using density functional theory calculations. The results reveal that the Li-exposed surfaces have lower energies than the oxygen surfaces, irrespective of the facets, and the Ni-exposed ones are the least stable. The equilibrium morphology can vary from truncated trigonal bipyramid to truncated egg shape, according to the chemical potential, whose range is confined by the phase diagram. Moreover, the electrochemical window of stable facets is found to strongly depend on the surface elements rather than the facet directions. Contrary to the stable Li surfaces, oxygen exposure on the surface considerably lowers the Fermi level to the level of electrolyte, thereby accelerating oxidative decomposition of the electrolyte on the cathode surface.
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Affiliation(s)
- Eunseog Cho
- Platform Technology Lab, Samsung Advanced Institute of Technology , 130 Samsung-ro, Suwon, Gyeonggi-do 16678, Republic of Korea
| | - Seung-Woo Seo
- Platform Technology Lab, Samsung Advanced Institute of Technology , 130 Samsung-ro, Suwon, Gyeonggi-do 16678, Republic of Korea
| | - Kyoungmin Min
- Platform Technology Lab, Samsung Advanced Institute of Technology , 130 Samsung-ro, Suwon, Gyeonggi-do 16678, Republic of Korea
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17
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Kang J, Han B. First-Principles Characterization of the Unknown Crystal Structure and Ionic Conductivity of Li7P2S8I as a Solid Electrolyte for High-Voltage Li Ion Batteries. J Phys Chem Lett 2016; 7:2671-2675. [PMID: 27345207 DOI: 10.1021/acs.jpclett.6b01050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Using first-principles density functional theory calculations and ab initio molecular dynamics (AIMD) simulations, we demonstrate the crystal structure of the Li7P2S8I (LPSI) and Li ionic conductivity at room temperature with its atomic-level mechanism. By successively applying three rigorous conceptual approaches, we identify that the LPSI has a similar symmetry class as Li10GeP2S12 (LGPS) material and estimate the Li ionic conductivity to be 0.3 mS cm(-1) with an activation energy of 0.20 eV, similar to the experimental value of 0.63 mS cm(-1). Iodine ions provide an additional path for Li ion diffusion, but a strong Li-I attractive interaction degrades the Li ionic transport. Calculated density of states (DOS) for LPSI indicate that electrochemical instability can be substantially improved by incorporating iodine at the Li metallic anode via forming a LiI compound. Our methods propose the computational design concept for a sulfide-based solid electrolyte with heteroatom doping for high-voltage Li ion batteries.
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Affiliation(s)
- Joonhee Kang
- Department of Energy Systems Engineering, DGIST , Daegu 42988, Republic of Korea
| | - Byungchan Han
- Department of Chemical and Biomolecular Engineering, Yonsei University , Seoul 03722, Republic of Korea
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19
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Huang Y, Lin YC, Jenkins DM, Chernova NA, Chung Y, Radhakrishnan B, Chu IH, Fang J, Wang Q, Omenya F, Ong SP, Whittingham MS. Thermal Stability and Reactivity of Cathode Materials for Li-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2016; 8:7013-7021. [PMID: 26915096 DOI: 10.1021/acsami.5b12081] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The thermal stability of electrochemically delithiated Li0.1Ni0.8Co0.15Al0.05O2 (NCA), FePO4 (FP), Mn0.8Fe0.2PO4 (MFP), hydrothermally synthesized VOPO4, LiVOPO4, and electrochemically lithiated Li2VOPO4 is investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis, coupled with mass spectrometry (TGA-MS). The thermal stability of the delithiated materials is found to be in the order of NCA < VOPO4 < MFP < FP. Unlike the layered oxides and MFP, VOPO4 does not evolve O2 on heating. Thus, VOPO4 is less likely to cause a thermal run-away phenomenon in batteries at elevated temperature and so is inherently safer. The lithiated materials LiVOPO4, Li2VOPO4, and LiNi0.8Co0.15Al0.05O2 are found to be stable in the presence of electrolyte, but sealed-capsule high-pressure experiments show a phase transformation of VOPO4 → HVOPO4 → H2VOPO4 when VOPO4 reacts with electrolyte (1 M LiPF6 in EC/DMC = 1:1) between 200 and 300 °C. Using first-principles calculations, we confirm that the charged VOPO4 cathode is indeed predicted to be marginally less stable than FP but significantly more stable than NCA in the absence of electrolyte. An analysis of the reaction equilibria between VOPO4 and EC using a multicomponent phase diagram approach yields products and reaction enthalpies that are highly consistent with the experiment results.
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Affiliation(s)
- Yiqing Huang
- Chemistry and Materials and ‡Department of Geology, Binghamton University , Binghamton, New York 13902-6000, United States
- Materials Science and Engineering Program and ∥Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Yuh-Chieh Lin
- Chemistry and Materials and ‡Department of Geology, Binghamton University , Binghamton, New York 13902-6000, United States
- Materials Science and Engineering Program and ∥Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - David M Jenkins
- Chemistry and Materials and ‡Department of Geology, Binghamton University , Binghamton, New York 13902-6000, United States
- Materials Science and Engineering Program and ∥Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Natasha A Chernova
- Chemistry and Materials and ‡Department of Geology, Binghamton University , Binghamton, New York 13902-6000, United States
- Materials Science and Engineering Program and ∥Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Youngmin Chung
- Chemistry and Materials and ‡Department of Geology, Binghamton University , Binghamton, New York 13902-6000, United States
- Materials Science and Engineering Program and ∥Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Balachandran Radhakrishnan
- Chemistry and Materials and ‡Department of Geology, Binghamton University , Binghamton, New York 13902-6000, United States
- Materials Science and Engineering Program and ∥Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Iek-Heng Chu
- Chemistry and Materials and ‡Department of Geology, Binghamton University , Binghamton, New York 13902-6000, United States
- Materials Science and Engineering Program and ∥Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Jin Fang
- Chemistry and Materials and ‡Department of Geology, Binghamton University , Binghamton, New York 13902-6000, United States
- Materials Science and Engineering Program and ∥Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Qi Wang
- Chemistry and Materials and ‡Department of Geology, Binghamton University , Binghamton, New York 13902-6000, United States
- Materials Science and Engineering Program and ∥Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Fredrick Omenya
- Chemistry and Materials and ‡Department of Geology, Binghamton University , Binghamton, New York 13902-6000, United States
- Materials Science and Engineering Program and ∥Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Shyue Ping Ong
- Chemistry and Materials and ‡Department of Geology, Binghamton University , Binghamton, New York 13902-6000, United States
- Materials Science and Engineering Program and ∥Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
| | - M Stanley Whittingham
- Chemistry and Materials and ‡Department of Geology, Binghamton University , Binghamton, New York 13902-6000, United States
- Materials Science and Engineering Program and ∥Department of NanoEngineering, University of California, San Diego , 9500 Gilman Drive, La Jolla, California 92093, United States
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