Analysis and Modeling of Calendar Aging and Cycle Aging of LiCoO2/Graphite Cells

被引：0
作者：
Wei Wang
Baoqiang Yuan
Qie Sun
Ronald Wennersten
机构：
[1] Shandong University,Institute of Thermal Science and Technology
[2] Shandong University,School of Energy and Power Engineering
[3] Shandong University,Institute for Advanced Science and Technology
来源：
Journal of Thermal Science | 2024年 / 33卷
关键词：
Lithium-ion battery; LiCoO; (LCO)/graphite; calendar aging; cycle aging; lifetime model;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Lithium-ion batteries are used in a wide range of applications. However, their cycle life suffers from the problem of capacity fade, which includes calendar and cycle aging. The effects of storage time, temperature and partial charge-discharge cycling on the capacity fade of Li-ion batteries are investigated in this study. The calendar aging and cycle aging are presented based on the storage and cycling experiment on LiCoO2/graphite cells under different storage temperature and different ranges of state of charge (SOC). Based on the measurement data, a one-component and a double-component aging model are presented to respectively describe the capacity fade caused by calendar and cycle aging. The calendar aging of LiCoO2/graphite batteries is mainly affected by temperature and SOC during the storage. Mean SOC and change in SOC (ASOC) are the main factors affecting battery degradation during cycling operation.
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页码：1109 / 1118
页数：9
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