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

科研成果: 期刊稿件会议文章同行评审

摘要

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.

源语言英语
文章编号012128
期刊IOP Conference Series: Materials Science and Engineering
774
1
DOI
出版状态已出版 - 26 3月 2020
活动2020 4th International Conference on Material Science and Technology, ICMST 2020 - Wuhan, Hubei, 中国
期限: 22 1月 202023 1月 2020

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Li, D., Wang, J., Wang, R., Hou, R., Su, Y., Yuan, Q., Chen, S., & Wu, F. (2020). Influence of the Li/TM ratio on electrochemical properties of LiNi0.9Co0.1O2 cathodes. IOP Conference Series: Materials Science and Engineering, 774(1), 文章 012128. https://doi.org/10.1088/1757-899X/774/1/012128