一种均衡考虑锂电池内部能量损耗和充电速度的多段恒流充电方法

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Abstract A fast charging method should make a balance between battery's safety/cycle life and charging time. For that the battery's temperature or energy loss should be controlled in the method. This paper proposed a charging method of Li-ion battery to balancing internal consumption and charging speed. Firstly, based on the constant current charging voltage curves of the Li-ion battery, the method gave a procedure to get the relationship of the internal resistances with stage of charge (SOC) and charge currents. Then the energy loss function was simplified and an objective function was designed for balancing charging time and the loss. Finally, for real time implementation, a multistage current charging curve is designed with different balance weight factors in each stage. Experiment shows the advantages.

Key words： Li-ion battery internal direct current resistance charging time energy loss constant current charging weight factor

Received: 11 January 2016 Published: 12 May 2017

PACS:

TQ152

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	Liu Wei
	Wu Haisang
	He Zhichao
	Sun Xiaofeng
	Yang Geng

Cite this article:

Liu Wei,Wu Haisang,He Zhichao等. A Multistage Current Charging Method for Li-Ion Battery Considering Balance of Internal Consumption and Charging Speed[J]. Transactions of China Electrotechnical Society, 2017, 32(9): 112-120.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I9/112

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