Volume 9, Issue 7 2170071
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Investigation on Cell Performance and Inconsistency Evolution of Series and Parallel Lithium-Ion Battery Modules

Xueyuan Wang

Xueyuan Wang

Department of Control Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804 China

Clean Energy Automotive Engineering Center, Tongji University, 4800 Caoan Road, Shanghai, 201804 China

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Qiaohua Fang

Qiaohua Fang

Haitong Securities Co. Ltd., 689 Guangdong Road, Shanghai, 200001 China

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Haifeng Dai

Corresponding Author

Haifeng Dai

Clean Energy Automotive Engineering Center, Tongji University, 4800 Caoan Road, Shanghai, 201804 China

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Qijun Chen

Qijun Chen

Department of Control Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804 China

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Xuezhe Wei

Corresponding Author

Xuezhe Wei

Clean Energy Automotive Engineering Center, Tongji University, 4800 Caoan Road, Shanghai, 201804 China

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First published: 07 July 2021
Citations: 1

Graphical Abstract

In a series module, cells with smaller capacity suffer from hard working conditions, leading to faster aging speed and finally exacerbating the deterioration of cell consistency. However, cells with large capacity in a parallel module bear a large current, thus accelerating the aging speed and automatically balancing the capacity of different cells. More details can be found in article number 2100072, Haifeng Dai, Xuezhe Wei, and co-workers.

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