State of health monitoring by gas generation patterns in commercial 18,650 lithium-ion batteries

Jaekwang Kim,Byambasuren Gerelt-Od,Eunseon Shin,Hyunchul Kang,Nayeong Kim,Changshin Jo,Hyungbin Son,Songhun Yoon

Journal of Electroanalytical Chemistry（2022）

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摘要

•Non-disruptive lab made Raman spectroscopic system is applied for gas analysis.•Four distinct phases of gas expulsion were found until commercial LIB’s end of life (EOL).•Mathematical model related to SOH is proposed based on the 4 gas expulsion phases.

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关键词

18,650 lithium-ion batteries,Gas generation,Raman spectroscopy,In situ method,SOH

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