Lithium-ion battery is one of the key components in electric vehicles which has been widely used as the carrier for transportation electrification. Prolonging lifetime of lithium-ion batteries will significantly reduce the resulting economic burden and promote the large-scale development of electric vehicles. In this study, cycle life tests are conducted on commercial batteries, which reveals that loss of electrolyte is one of the key reasons leading to a rapid battery degradation. A method using electrolyte refilling is proposed, and it is found that the method protects the cells from rapid decay. After refilling electrolyte, the internal resistance decreases by 64.5%, and the cycle lifetime increases by more than 600 cycles. The electrolyte refilling method improve the feasibility of battery second utilization, improving the environmental friendliness of electric vehicles.


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    Title :

    Electrolyte refilling to prolong lithium-ion battery lifetime for Electric Vehicles


    Contributors:
    Jin, Yiqun (author) / Zhu, Jiangong (author) / Fan, Wenjun (author) / Wang, Xiuwu (author) / Zhang, Jie (author) / Ye, Mingxuan (author) / Wei, Xuezhe (author) / Dai, Haifeng (author)


    Publication date :

    2024-10-10


    Size :

    840624 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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