The invention discloses an electrolyte for a lithium ion battery, which comprises the following components in percentage by mass: 0.01%-1% of phosphate ester, 0.01%-1% of acid anhydride and 4%-25% of dimethyl carbonate, the phosphate ester at least contains a triple bond functional group, and the mass content of the acid anhydride is 0.01%-1%, and the mass content of the dimethyl carbonate is 4%-25%. According to the electrolyte for the lithium ion battery, the high-temperature performance of the battery can be effectively improved, meanwhile, the low-temperature performance can be improved, the manufacturing process is simple and easy to implement, and the electrolyte is suitable for large-scale production.

    本发明公开了一种锂离子电池用电解液,包括:至少含有一个三键官能团的磷酸酯、酸酐和碳酸二甲酯,其中,所述磷酸酯的质量含量为0.01%‑1%,所述酸酐的质量含量为0.01%‑1%,所述碳酸二甲酯的质量含量为4%~25%。本发明的锂离子电池用电解液,能够有效改善电池的高温性能,同时可提升低温性能,并且制作过程简单易行,适合大规模生产。


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    Title :

    Electrolyte for lithium ion battery, lithium ion battery and vehicle


    Additional title:

    一种锂离子电池用电解液和锂离子电池及一种车辆


    Contributors:
    YANG ZHIRU (author)

    Publication date :

    2024-05-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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