JARI Research Journal
Online ISSN : 2759-4602
Research Report
Study of Storage Test Methods for Lithium-Ion Cells
Tomoyuki MATSUDA
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2023 Volume 2023 Issue 9 Article ID: JRJ20230901

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Abstract
We conducted storage life tests using commercial 18650-type lithium-ion cells to study the effect of performance tests during storage life tests. The difference in the frequency of the performance tests affects the charge/discharge cycle number and self-discharge amount of the test cells during storage, which affects cell degradation. In addition, the coulombic efficiency during charge/discharge tests indicated that the measured capacity varies by the overhang of the negative electrode. Considering such effects is important for highly accurate evaluation of storage degradation.
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© 2023 Japan Automobile Research Institute
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