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公开(公告)号:US20190393551A1
公开(公告)日:2019-12-26
申请号:US16490895
申请日:2017-06-23
Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
Inventor: Qiao Shi , Muchong Lin , Shiguang Hu , Guanjie Ai
IPC: H01M10/0567 , H01M10/0525 , H01M4/525
Abstract: To address the existing problem of insufficient cycle performance and high-temperature storage performance of lithium ion battery electrolyte at high pressure, the disclosure provides a non-aqueous electrolyte for lithium ion battery. The non-aqueous electrolyte for lithium ion battery comprises a cyano-containing compound A and a compound B represented by formula I, The non-aqueous electrolyte for lithium ion battery provided by the disclosure contains both the cyano-containing compound A and the compound B, so that the lithium ion battery containing the non-aqueous electrolyte can have better cycle performance and high-temperature storage performance at high pressure.
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公开(公告)号:US20220263133A1
公开(公告)日:2022-08-18
申请号:US17735109
申请日:2022-05-02
Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
Inventor: Qiao Shi , Muchong Lin , Shiguang Hu , Xionggui Lin , Jiaojiao Yun , Chang'an Zeng
IPC: H01M10/0567 , H01M10/0525 , H01M10/0569 , C07D327/10 , C07F9/06 , C07D317/10 , C07F9/113 , H01M10/056
Abstract: A non-aqueous electrolyte for a lithium-ion battery and a lithium-ion battery. The non-aqueous electrolyte includes an unsaturated phosphate compound and a cyclic unsaturated carboxylic anhydride compound. The unsaturated phosphate compound has a structure represented by structural formula (4). R13, R11 and R12 are each independently selected from a hydrocarbon group having 1 to 5 carbon atoms, and at least one of R13, R11 and R12 is an unsaturated hydrocarbon group having a double bond or a triple bond. The unsaturated cyclic carboxylic anhydride compound having a structure represented by Structural Formula 5. R14 is selected from the group consisting of an alkenylene group having 2 to 4 carbon atoms or a fluorinated alkenylene group having 2 to 4 carbon atoms. By means of the synergistic effect of two compounds, the non-aqueous electrolyte has excellent high-temperature cycling performance and storage performance, and also has lower impedance and good low-temperature performance.
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公开(公告)号:US20200020983A1
公开(公告)日:2020-01-16
申请号:US16490897
申请日:2017-06-21
Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
Inventor: Qiao Shi , Chang'an Zeng , Muchong Lin
IPC: H01M10/0567 , H01M10/0525 , H01M10/42
Abstract: In order to solve the problem of poor cycle performance (especially high temperature cycle performance) of the existing lithium ion battery electrolyte containing anhydride or anhydride derivatives, the disclosure provides a non-aqueous electrolyte for lithium ion battery. The non-aqueous electrolyte for lithium ion battery comprises a compound A represented by formula I and a compound B represented by formula II, In the structural formula I, R0 is C2-C4 alkylene or alkenylene, or C2-C4 fluoroalkylene or fluoroalkenylene; In formula II, R1, R2, R3, R4, R5 and R6 are each independently selected from one of hydrogen atom, fluorine atom and C1-C5 group. The non-aqueous electrolyte for lithium ion battery provided by the invention is obtained by combining the compound A and compound B, so that the lithium ion battery containing the non-aqueous electrolyte has better cycle performance and high-temperature storage performance.
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公开(公告)号:US20200020972A1
公开(公告)日:2020-01-16
申请号:US16490899
申请日:2017-06-23
Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
Inventor: Qiao Shi , Muchong Lin , Shiguang Hu , Jiaojiao Yun
IPC: H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M4/131
Abstract: The application provides a non-aqueous electrolyte for lithium ion battery. The non-aqueous electrolyte for lithium ion battery comprises a compound A represented by formula I and a compound B represented by formula II, In formula I, R1, R2 and R3 are independently selected from C1-C5 alkyl or haloalkyl, C2-C5 unsaturated hydrocarbon group or unsaturated halohydrocarbon group, and at least one of R1, R2 and R3 is the unsaturated hydrocarbon group or unsaturated halohydrocarbon group; In formula II, R4, R5, R6, R7, R8 and R9 are each independently selected from one of hydrogen atom, fluorine atom and C1-C5 group. The non-aqueous electrolyte for lithium ion battery provided by the application enables the battery to have excellent cycle performance and high-temperature storage performance through the synergistic effect of the compound A and the compound B.
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公开(公告)号:US20190207242A1
公开(公告)日:2019-07-04
申请号:US16311674
申请日:2016-12-29
Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
Inventor: Muchong Lin , Qiao Shi , Ruixing Liu
IPC: H01M10/04 , H01M4/131 , H01M4/1391 , H01M4/62 , H01M4/505
CPC classification number: H01M10/045 , H01M4/131 , H01M4/1391 , H01M4/505 , H01M4/62 , H01M4/621 , H01M4/625 , H01M10/0525
Abstract: Provided are a cathode plate of a lithium ion battery and a preparation method therefor and a lithium ion battery. The cathode plate comprises a cathode current collector and a cathode material located on the cathode current collector. The cathode material comprises a cathode active material, a binder, a conductive agent and an additive, wherein the additive comprises at least one of the compounds shown by structural formula I; and in structural formula I, the monomer of R is R1, R1 is an alkenyl compound or an ether compound containing an alkenyl, and n is a positive integer. The cathode plate contains a compound shown by structural formula I. The compound forms a protective layer on the surface of the particles of the cathode active material and reduces a side reaction between the cathode active material and an electrolyte at a high voltage.
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公开(公告)号:US11757132B2
公开(公告)日:2023-09-12
申请号:US17735109
申请日:2022-05-02
Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
Inventor: Qiao Shi , Muchong Lin , Shiguang Hu , Xionggui Lin , Jiaojiao Yun , Chang'an Zeng
IPC: H01M10/0567 , H01M10/0525 , H01M10/0569 , H01M10/056 , C07D327/10 , C07D317/10 , C07F9/06 , C07F9/113
CPC classification number: H01M10/0567 , C07D317/10 , C07D327/10 , C07F9/062 , C07F9/113 , H01M10/056 , H01M10/0525 , H01M10/0569 , H01M2300/0037
Abstract: A non-aqueous electrolyte for a lithium-ion battery and a lithium-ion battery. The non-aqueous electrolyte includes an unsaturated phosphate compound and a cyclic unsaturated carboxylic anhydride compound. The unsaturated phosphate compound has a structure represented by structural formula (4). R13, R11 and R12 are each independently selected from a hydrocarbon group having 1 to 5 carbon atoms, and at least one of R13, R11 and R12 is an unsaturated hydrocarbon group having a double bond or a triple bond. The unsaturated cyclic carboxylic anhydride compound having a structure represented by Structural Formula 5. R14 is selected from the group consisting of an alkenylene group having 2 to 4 carbon atoms or a fluorinated alkenylene group having 2 to 4 carbon atoms. By means of the synergistic effect of two compounds, the non-aqueous electrolyte has excellent high-temperature cycling performance and storage performance, and also has lower impedance and good low-temperature performance.
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公开(公告)号:US11489190B2
公开(公告)日:2022-11-01
申请号:US16490900
申请日:2017-06-22
Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
Inventor: Qiao Shi , Muchong Lin , Shiguang Hu , Ruixing Liu
IPC: H01M10/0525 , H01M10/0566
Abstract: In order to solve the problem of insufficient cycle performance and high-temperature storage performance of the existing non-aqueous electrolyte for lithium ion battery containing maleic anhydride copolymer, the application provides a non-aqueous electrolyte for lithium ion battery. The non-aqueous electrolyte for lithium ion battery comprises a compound A represented by formula I and a compound B represented by formula II, In formula I, R7 and R8 are independently selected from one of hydrogen atom, halogen atom, —O—R9 or aryl, wherein n is a positive integer and R9 is a C1-C4 alkyl group; In formula II, R1, R2, R3, R4, R5 and R6 are each independently selected from one of hydrogen atom, fluorine atom and C1-C5 group. The non-aqueous electrolyte for lithium ion battery provided by the invention can improve the cycle stability and high-temperature storage performance of the battery through the effections of compound A and compound B.
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公开(公告)号:US20220059868A1
公开(公告)日:2022-02-24
申请号:US17519565
申请日:2021-11-04
Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
Inventor: Qiao Shi , Muchong Lin , Shiguang Hu , Jiaojiao Yun
IPC: H01M10/0525 , H01M4/131 , H01M10/0567 , H01M10/0569
Abstract: The application provides a non-aqueous electrolyte for lithium ion battery. The non-aqueous electrolyte for lithium ion battery comprises a compound A represented by formula I and a compound B represented by formula II, In formula I, R1, R2 and R3 are independently selected from C1-C5 alkyl or haloalkyl, C2-C5 unsaturated hydrocarbon group or unsaturated halohydrocarbon group, and at least one of R1, R2 and R3 is the unsaturated hydrocarbon group or unsaturated halohydrocarbon group; In formula II, R4, R5, R6, R7, R8 and R9 are each independently selected from one of hydrogen atom, fluorine atom and C1-C5 group. The non-aqueous electrolyte for lithium ion battery provided by the application enables the battery to have excellent cycle performance and high-temperature storage performance through the synergistic effect of the compound A and the compound B.
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公开(公告)号:US11177506B2
公开(公告)日:2021-11-16
申请号:US16490895
申请日:2017-06-23
Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
Inventor: Qiao Shi , Muchong Lin , Shiguang Hu , Guanjie Ai
IPC: H01M10/0567 , H01M4/525 , H01M10/0525 , H01M4/02
Abstract: To address the existing problem of insufficient cycle performance and high-temperature storage performance of lithium ion battery electrolyte at high pressure, the disclosure provides a non-aqueous electrolyte for lithium ion battery. The non-aqueous electrolyte for lithium ion battery comprises a cyano-containing compound A and a compound B represented by formula I, The non-aqueous electrolyte for lithium ion battery provided by the disclosure contains both the cyano-containing compound A and the compound B, so that the lithium ion battery containing the non-aqueous electrolyte can have better cycle performance and high-temperature storage performance at high pressure.
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公开(公告)号:US11081720B2
公开(公告)日:2021-08-03
申请号:US16311674
申请日:2016-12-29
Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
Inventor: Muchong Lin , Qiao Shi , Ruixing Liu
IPC: H01M10/04 , H01M4/131 , H01M4/1391 , H01M10/0525 , H01M4/505 , H01M4/62 , H01M4/525 , H01M4/04 , H01M4/136 , H01M4/58
Abstract: Provided are a cathode plate of a lithium ion battery and a preparation method therefor and a lithium ion battery. The cathode plate comprises a cathode current collector and a cathode material located on the cathode current collector. The cathode material comprises a cathode active material, a binder, a conductive agent and an additive, wherein the additive comprises at least one of the compounds shown by structural formula I; and in structural formula I, the monomer of R is R1, R1 is an alkenyl compound or an ether compound containing an alkenyl, and n is a positive integer. The cathode plate contains a compound shown by structural formula I. The compound forms a protective layer on the surface of the particles of the cathode active material and reduces a side reaction between the cathode active material and an electrolyte at a high voltage.
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