HETEROCYCLIC SULFONYL FLUORIDE ADDITIVES FOR ELECTROLYTE COMPOSITION FOR LITHIUM BATTERIES

    公开(公告)号:US20200212487A1

    公开(公告)日:2020-07-02

    申请号:US16619213

    申请日:2018-07-18

    Applicant: BASF SE

    Abstract: Heterocyclic sulfonyl fluoride additives for electrolyte composition for lithium batteries An electrolyte composition containing •(i) at least one aprotic organic solvent; •(ii) at least one conducting salt; •(iii) at least one compound of formula (I) wherein R1, R2, and R3 are each independently H or a C1-C20 hydrocarbon group which may be unsubstituted or substituted by one or more substituents selected from F, CN, OS(O)2F, and S(O)2F and which may contain one or more groups selected from —O—, —S—, —C(O)O—, —OC(O)—, and —OS(O)2—; wherein at least one of R1, R2, and R3 is substituted by one or more S(O)2F groups; and •(iv) optionally one or more additives.

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