Failure mechanisms of the Li(Ni0.6Co0.2Mn0.2)O2-Li4Ti5O12 lithium-ion batteries in long-time high-rate cycle

Author:

Huang Yushuo1ORCID,Lu Suyang1ORCID,Zhu Song1,Su Minghao1,Yang Shilun1,Zeng Wenwen1ORCID,Zhan Haoran1ORCID,Yang Ye1,Mei Jun1

Affiliation:

1. Chengdu Development Center of Science and Technology, China Academy of Engineering Physics, Chengdu 610200, China

Abstract

Through the analysis of tens of thousands of cycles in LTO pouch batteries at a high rate of 40C, we found that the failure was mainly caused by the consumption of electrolyte and the microcracks emerged on the cathode electrode materials NCM622.

Funder

National Natural Science Foundation of China

Publisher

Royal Society of Chemistry (RSC)

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