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

Chemistry

State University of New York Binghamton University
NorthEast Center for Chemical Energy Storage (NECCES) at Binghamton University in Binghamton
University of Cambridge
United States Department of Energy

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

29 Scopus citations

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
Journal	Electrochemistry Communications
Volume	105
DOIs	https://doi.org/10.1016/j.elecom.2019.106491
State	Published - Aug 2019

Keywords

Annealing
Cathode
Li-ion battery
Structural disorder

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10.1016/j.elecom.2019.106491

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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 = "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",

}

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

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

UR - https://www.scopus.com/pages/publications/85068844944

U2 - 10.1016/j.elecom.2019.106491

DO - 10.1016/j.elecom.2019.106491

M3 - Article

AN - SCOPUS:85068844944

SN - 1388-2481

VL - 105

JO - Electrochemistry Communications

JF - Electrochemistry Communications

M1 - 106491

ER -

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

Abstract

Keywords

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