Influence of the Li/TM ratio on electrochemical properties of LiNi0.9Co0.1O2 cathodes

Danhua Li; Jing Wang; Ran Wang; Rui Hou; Yuefeng Su; Qiang Yuan; Shi Chen; Feng Wu

doi:10.1088/1757-899X/774/1/012128

Influence of the Li/TM ratio on electrochemical properties of LiNi_0.9Co_0.1O₂ cathodes

Danhua Li, Jing Wang, Ran Wang, Rui Hou, Yuefeng Su, Qiang Yuan, Shi Chen, Feng Wu

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Conference article › peer-review

Abstract

The layered Nickel-rich LiNi_xM_yO₂ (Ni ≥60%) cathodes have attracted much attention owing to their high energy density, promising cycle property and low cost. Nevertheless, their electrochemical performances greatly depend on the synthesis conditions, especially for the ratio of lithium to transition metal (Li/TM). Herein, we have systematically investigated the influence of Li/TM on structure and electrochemical performance of LiNi_0.9Co_0.1O₂ cathodes. The optimized LiNi_0.9Co_0.1O₂ (Li/TM is 1.02) exhibits highest initial capacity of 189.8mAh g^-1 at 1 C and much better capacity retention of 82.19% after 100 cycles between 2.8 and 4.35 V at 1 C.

Original language	English
Article number	012128
Journal	IOP Conference Series: Materials Science and Engineering
Volume	774
Issue number	1
DOIs	https://doi.org/10.1088/1757-899X/774/1/012128
Publication status	Published - 26 Mar 2020
Event	2020 4th International Conference on Material Science and Technology, ICMST 2020 - Wuhan, Hubei, China Duration: 22 Jan 2020 → 23 Jan 2020

Keywords

Electrochemical performance
Li/TM
LiNiCoO
Lithium-ion batteries

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1088/1757-899X/774/1/012128

Cite this

@article{b18455bb75a2454688ffa2a9a1214802,

title = "Influence of the Li/TM ratio on electrochemical properties of LiNi0.9Co0.1O2 cathodes",

abstract = "The layered Nickel-rich LiNixMyO2 (Ni ≥60\%) cathodes have attracted much attention owing to their high energy density, promising cycle property and low cost. Nevertheless, their electrochemical performances greatly depend on the synthesis conditions, especially for the ratio of lithium to transition metal (Li/TM). Herein, we have systematically investigated the influence of Li/TM on structure and electrochemical performance of LiNi0.9Co0.1O2 cathodes. The optimized LiNi0.9Co0.1O2 (Li/TM is 1.02) exhibits highest initial capacity of 189.8mAh g-1 at 1 C and much better capacity retention of 82.19\% after 100 cycles between 2.8 and 4.35 V at 1 C.",

keywords = "Electrochemical performance, Li/TM, LiNiCoO, Lithium-ion batteries",

author = "Danhua Li and Jing Wang and Ran Wang and Rui Hou and Yuefeng Su and Qiang Yuan and Shi Chen and Feng Wu",

note = "Publisher Copyright: {\textcopyright} 2020 Institute of Physics Publishing. All rights reserved.; 2020 4th International Conference on Material Science and Technology, ICMST 2020 ; Conference date: 22-01-2020 Through 23-01-2020",

year = "2020",

month = mar,

day = "26",

doi = "10.1088/1757-899X/774/1/012128",

language = "English",

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journal = "IOP Conference Series: Materials Science and Engineering",

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TY - JOUR

T1 - Influence of the Li/TM ratio on electrochemical properties of LiNi0.9Co0.1O2 cathodes

AU - Li, Danhua

AU - Wang, Jing

AU - Wang, Ran

AU - Hou, Rui

AU - Su, Yuefeng

AU - Yuan, Qiang

AU - Chen, Shi

AU - Wu, Feng

PY - 2020/3/26

Y1 - 2020/3/26

N2 - The layered Nickel-rich LiNixMyO2 (Ni ≥60%) cathodes have attracted much attention owing to their high energy density, promising cycle property and low cost. Nevertheless, their electrochemical performances greatly depend on the synthesis conditions, especially for the ratio of lithium to transition metal (Li/TM). Herein, we have systematically investigated the influence of Li/TM on structure and electrochemical performance of LiNi0.9Co0.1O2 cathodes. The optimized LiNi0.9Co0.1O2 (Li/TM is 1.02) exhibits highest initial capacity of 189.8mAh g-1 at 1 C and much better capacity retention of 82.19% after 100 cycles between 2.8 and 4.35 V at 1 C.

AB - The layered Nickel-rich LiNixMyO2 (Ni ≥60%) cathodes have attracted much attention owing to their high energy density, promising cycle property and low cost. Nevertheless, their electrochemical performances greatly depend on the synthesis conditions, especially for the ratio of lithium to transition metal (Li/TM). Herein, we have systematically investigated the influence of Li/TM on structure and electrochemical performance of LiNi0.9Co0.1O2 cathodes. The optimized LiNi0.9Co0.1O2 (Li/TM is 1.02) exhibits highest initial capacity of 189.8mAh g-1 at 1 C and much better capacity retention of 82.19% after 100 cycles between 2.8 and 4.35 V at 1 C.

KW - Electrochemical performance

KW - Li/TM

KW - LiNiCoO

KW - Lithium-ion batteries

UR - https://www.scopus.com/pages/publications/85083017084

U2 - 10.1088/1757-899X/774/1/012128

DO - 10.1088/1757-899X/774/1/012128

M3 - Conference article

AN - SCOPUS:85083017084

SN - 1757-8981

VL - 774

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

IS - 1

M1 - 012128

T2 - 2020 4th International Conference on Material Science and Technology, ICMST 2020

Y2 - 22 January 2020 through 23 January 2020

ER -