A high-performance solid-state synthesized LiVOPO4 for lithium-ion batteries

Yong Shi; Hui Zhou; Sylvia Britto; Ieuan D. Seymour; Kamila M. Wiaderek; Fredrick Omenya; Natasha A. Chernova; Karena W. Chapman; Clare P. Grey; M. Stanley Whittingham

doi:10.1016/j.elecom.2019.106491

A high-performance solid-state synthesized LiVOPO₄ for lithium-ion batteries

Yong Shi, Hui Zhou, Sylvia Britto, Ieuan D. Seymour, Kamila M. Wiaderek, Fredrick Omenya, Natasha A. Chernova, Karena W. Chapman, Clare P. Grey, M. Stanley Whittingham^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

ε-LiVOPO₄, a multi-electron cathode material for Li-ion batteries, suffers from structural disorder upon nanosizing by high-energy ball-milling, which impedes kinetics and promotes undesirable interfacial side reactions. This work presents a feasible way to decrease the disorder in the ball-milled composite of ε-LiVOPO₄/C by post-annealing at 450 °C in an Ar atmosphere, with no reduction reaction caused by carbon and no particle growth. The post-annealed material shows recovered voltage plateaus, enhanced kinetics of Li diffusivity, and suppressed interfacial reactions. As a result, a high-performance solid-state synthesized ε-LiVOPO₄ can be obtained, delivering a capacity of 270 mAh g⁻¹ at C/5 with less than 4% degradation upon 100 cycles.

Original language	English
Article number	106491
Number of pages	6
Journal	Electrochemistry Communications
Volume	105
Early online date	2 Jul 2019
DOIs	https://doi.org/10.1016/j.elecom.2019.106491
Publication status	Published - Aug 2019

Keywords

Annealing
Cathode
Li-ion battery
Structural disorder

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10.1016/j.elecom.2019.106491

Cite this

@article{fd9e4fb9e6e541c49ffd64137e8857de,

title = "A high-performance solid-state synthesized LiVOPO4 for lithium-ion batteries",

abstract = "ε-LiVOPO4, a multi-electron cathode material for Li-ion batteries, suffers from structural disorder upon nanosizing by high-energy ball-milling, which impedes kinetics and promotes undesirable interfacial side reactions. This work presents a feasible way to decrease the disorder in the ball-milled composite of ε-LiVOPO4/C by post-annealing at 450 °C in an Ar atmosphere, with no reduction reaction caused by carbon and no particle growth. The post-annealed material shows recovered voltage plateaus, enhanced kinetics of Li diffusivity, and suppressed interfacial reactions. As a result, a high-performance solid-state synthesized ε-LiVOPO4 can be obtained, delivering a capacity of 270 mAh g−1 at C/5 with less than 4% degradation upon 100 cycles.",

keywords = "Annealing, Cathode, Li-ion battery, Structural disorder",

author = "Yong Shi and Hui Zhou and Sylvia Britto and Seymour, {Ieuan D.} and Wiaderek, {Kamila M.} and Fredrick Omenya and Chernova, {Natasha A.} and Chapman, {Karena W.} and Grey, {Clare P.} and Whittingham, {M. Stanley}",

note = "Funding Information: This research was funded by U.S. Department of Energy , Office of Energy Efficiency and Renewable Energy (EERE) program under BMR award no. DE-EE0006852 . The structural characterization using NMR and PDF techniques was supported by the NorthEast Center for Chemical Energy Storage (NECCES), an Energy Frontier Research Center supported by the U.S. Department of Energy , Office of Science, Office of Basic Energy Sciences under award no. DE-SC0012583 . This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We thank Dr. Fengxia Xin for help with TG-MS data acquisition, and Drs. Jatinkumar Rana and Jia Ding, for many helpful discussions. Funding Information: This research was funded by U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE) program under BMR award no. DE-EE0006852. The structural characterization using NMR and PDF techniques was supported by the NorthEast Center for Chemical Energy Storage (NECCES), an Energy Frontier Research Center supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under award no. DE-SC0012583. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We thank Dr. Fengxia Xin for help with TG-MS data acquisition, and Drs. Jatinkumar Rana and Jia Ding, for many helpful discussions. Publisher Copyright: {\textcopyright} 2019 The Authors",

year = "2019",

month = aug,

doi = "10.1016/j.elecom.2019.106491",

language = "English",

volume = "105",

journal = "Electrochemistry Communications",

issn = "1388-2481",

publisher = "Elsevier Inc.",

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TY - JOUR

T1 - A high-performance solid-state synthesized LiVOPO4 for lithium-ion batteries

AU - Shi, Yong

AU - Zhou, Hui

AU - Britto, Sylvia

AU - Seymour, Ieuan D.

AU - Wiaderek, Kamila M.

AU - Omenya, Fredrick

AU - Chernova, Natasha A.

AU - Chapman, Karena W.

AU - Grey, Clare P.

AU - Whittingham, M. Stanley

N1 - Funding Information: This research was funded by U.S. Department of Energy , Office of Energy Efficiency and Renewable Energy (EERE) program under BMR award no. DE-EE0006852 . The structural characterization using NMR and PDF techniques was supported by the NorthEast Center for Chemical Energy Storage (NECCES), an Energy Frontier Research Center supported by the U.S. Department of Energy , Office of Science, Office of Basic Energy Sciences under award no. DE-SC0012583 . This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We thank Dr. Fengxia Xin for help with TG-MS data acquisition, and Drs. Jatinkumar Rana and Jia Ding, for many helpful discussions. Funding Information: This research was funded by U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE) program under BMR award no. DE-EE0006852. The structural characterization using NMR and PDF techniques was supported by the NorthEast Center for Chemical Energy Storage (NECCES), an Energy Frontier Research Center supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under award no. DE-SC0012583. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We thank Dr. Fengxia Xin for help with TG-MS data acquisition, and Drs. Jatinkumar Rana and Jia Ding, for many helpful discussions. Publisher Copyright: © 2019 The Authors

PY - 2019/8

Y1 - 2019/8

N2 - ε-LiVOPO4, a multi-electron cathode material for Li-ion batteries, suffers from structural disorder upon nanosizing by high-energy ball-milling, which impedes kinetics and promotes undesirable interfacial side reactions. This work presents a feasible way to decrease the disorder in the ball-milled composite of ε-LiVOPO4/C by post-annealing at 450 °C in an Ar atmosphere, with no reduction reaction caused by carbon and no particle growth. The post-annealed material shows recovered voltage plateaus, enhanced kinetics of Li diffusivity, and suppressed interfacial reactions. As a result, a high-performance solid-state synthesized ε-LiVOPO4 can be obtained, delivering a capacity of 270 mAh g−1 at C/5 with less than 4% degradation upon 100 cycles.

AB - ε-LiVOPO4, a multi-electron cathode material for Li-ion batteries, suffers from structural disorder upon nanosizing by high-energy ball-milling, which impedes kinetics and promotes undesirable interfacial side reactions. This work presents a feasible way to decrease the disorder in the ball-milled composite of ε-LiVOPO4/C by post-annealing at 450 °C in an Ar atmosphere, with no reduction reaction caused by carbon and no particle growth. The post-annealed material shows recovered voltage plateaus, enhanced kinetics of Li diffusivity, and suppressed interfacial reactions. As a result, a high-performance solid-state synthesized ε-LiVOPO4 can be obtained, delivering a capacity of 270 mAh g−1 at C/5 with less than 4% degradation upon 100 cycles.

KW - Annealing

KW - Cathode

KW - Li-ion battery

KW - Structural disorder

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DO - 10.1016/j.elecom.2019.106491

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SN - 1388-2481

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