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公开(公告)号:US20250087749A1
公开(公告)日:2025-03-13
申请号:US18580635
申请日:2022-06-20
Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
Inventor: Shuhuai Xiang , Zhongcang Zhou , Yang Yi , Shiguang Hu
IPC: H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M10/42
Abstract: The application relates to the technical field of lithium ion batteries, in particular to a non-aqueous electrolyte and a lithium ion battery. In order to overcome the technical problem of poor high-temperature performance of the existing lithium ion battery, the application provides a non-aqueous electrolyte, comprising a solvent, a lithium salt and at least one of bicyclic compound represented by structural formulas 1-1 to 1-3: Meanwhile, the application also discloses a lithium ion battery comprising the non-aqueous electrolyte. The non-aqueous electrolyte and the lithium ion battery provided by the application can effectively improve the high-temperature cycle performance and high-temperature storage performance of battery.
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公开(公告)号:US20240322242A1
公开(公告)日:2024-09-26
申请号:US18577680
申请日:2022-06-21
Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
Inventor: Shuhuai Xiang , Yang Yi , Shiguang Hu , Yong Zhang
IPC: H01M10/0567 , C07F5/04 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M10/42
CPC classification number: H01M10/0567 , C07F5/04 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M10/4235 , H01M2300/004
Abstract: Provided is a non-aqueous electrolyte, comprising a solvent, an electrolyte salt and a compound represented by structural formula 1:
wherein, A, G and X are each independently selected from a cyclic sulfate group and its derivatives, a cyclic sulfonate group and its derivatives, a cyclic sulfite group and its derivatives or a group D; one or none of A, G and X is selected from the group D, and the group D is selected from a C1-C4 alkyl group, a C1-C4 unsaturated hydrocarbon group, a C1-C4 haloalkyl group, a C1-C4 nitrile group, a C1-C4 ether group or a C1-C4 ketone group. The application also provides a battery comprising the non-aqueous electrolyte. By adopting the above compound as an additive for the non-aqueous electrolyte, the film-forming quality of the surfaces of positive and negative electrodes can be effectively improved, and thus the battery performance is improved.
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