Volume 10, Issue 11 2200600
Research Article

Investigation of the Performance and Recession Mechanisms of High-Nickel Ternary Lithium-Ion Batteries Under Artificial Aging Discharge Rates

Honghong Zheng

Honghong Zheng

School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006 P. R. China

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Xinxi Li

Corresponding Author

Xinxi Li

School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006 P. R. China

Guangdong Key Laboratory of Battery Safety, Guangzhou Institute of Energy testing, Guangzhou, 510006 P. R. China

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Zan Huang

Zan Huang

School of Marine Engineering, Guangzhou Maritime Institute, Guangzhou, Guangdong, 510725 P. R. China

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Xiaoqing Yang

Xiaoqing Yang

School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006 P. R. China

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Jianhui Deng

Jianhui Deng

School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006 P. R. China

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Guoqing Zhang

Guoqing Zhang

School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006 P. R. China

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Xianwen Tang

Xianwen Tang

Guangdong Key Laboratory of Battery Safety, Guangzhou Institute of Energy testing, Guangzhou, 510006 P. R. China

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First published: 14 September 2022
Citations: 2

Abstract

Using a series of electrochemical performance tests and post-mortem analysis, herein, the performance and aging mechanisms of high-nickel lithium-ion batteries after accelerated aging at different discharge rates are investigated. The results show that the loss of lithium ions and the generation of a solid electrolyte interphase are the main causes for capacity fading at relatively low aging discharge rates. When the aging rate increases to 3 C, the performance of the battery deteriorates significantly, and structural damage becomes the main reason for attenuation, which means that the aging mechanism changed. It is expected that this investigation will improve the safety performance of the retired high-nickel ternary lithium batteries.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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