公开(公告)号：US20220255120A1

公开(公告)日：2022-08-11

申请号：US17628217

申请日：2020-07-30

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Yonghong Deng ,  Yuanyuan Kang ,  Yunxian Qian ,  Shiguang Hu ,  Hao Zhang

IPC: H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0567

Abstract: The application provides a non-aqueous electrolyte for a lithium ion battery, including a non-aqueous organic solvent and lithium salt, and the non-aqueous electrolyte further includes one or more selected from the compounds represented by Formula 1 and Formula 2. R1, R2, R3 and R4 are each independently selected from a substituted or unsubstituted alkyl group and ether group and unsaturated hydrocarbon group, and at least one of R1, R2, R3 and R4 is the substituted or unsubstituted unsaturated hydrocarbon group, and R5 is selected from a substituted or unsubstituted alkylene group and ether group; R6, R7 and R8 are each independently selected from a substituted or unsubstituted alkyl group and ether group and unsaturated hydrocarbon group, provided that at least one of R6, R7 and R8 is the substituted or unsubstituted unsaturated hydrocarbon group. The application also provides a lithium ion battery including the non-aqueous electrolyte.

公开(公告)号：US20230163308A1

公开(公告)日：2023-05-25

申请号：US17920822

申请日：2021-04-23

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Zhongbo Liu ,  Xiaohu Ao ,  Yonghong Deng ,  Yuanyuan Kang ,  Yunxian Qian

IPC: H01M4/62 ,  H01M4/36 ,  H01M4/38 ,  H01M4/40

CPC classification number: H01M4/628 ,  H01M4/366 ,  H01M4/382 ,  H01M4/405 ,  H01M4/387 ,  H01M4/381 ,  H01M2004/027

Abstract: In order to overcome the problem of metal dendrites caused by uneven deposition on the surface of the existing metal electrode, the present application provides a metal electrode, comprising a metal layer and a coating, the coating comprises at least one block copolymer; the block copolymer comprises a first polymer block for independently conducting metal ions and a second polymer block for providing mechanical strength; a shear modulus of the coating is ≥107 Pa, and a thickness of the coating is 500 nm-50 μm. Meanwhile, the application also discloses a battery comprising the metal electrode. The metal electrode provided by the application has good ionic conductivity and inhibition capability for metal dendrite.

公开(公告)号：US12183883B2

公开(公告)日：2024-12-31

申请号：US17434016

申请日：2020-04-10

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Zhongbo Liu ,  Yuanyuan Kang ,  Furen Zheng ,  Yonghong Deng

IPC: H01M10/0565 ,  H01M10/0525

Abstract: In order to overcome the problem of low ionic conductivity in the existing polymer solid electrolyte, the disclosure provides a solid electrolyte, comprising a polymer, a lithium salt and an additive, the additive is selected from an aprotic organic solvent with a carbon number lower than 10 and a relative dielectric constant higher than 3.6; the mass content of the lithium salt is 30%˜90%, and the mass content of the additive is 0.01%˜2%, based on the total mass of the solid electrolyte being 100%. Further provided is a polymer lithium ion battery comprising the solid electrolyte. According to the solid electrolyte of the disclosure, a trace amount of small molecule aprotic organic solvent with high dielectric constant is introduced as an additive, which can inhibit crystallization of the solid electrolyte, promote transmission of lithium ions in the electrolyte, and improve the ionic conductivity of the solid electrolyte at room temperature.

公开(公告)号：US20220140389A1

公开(公告)日：2022-05-05

申请号：US17434016

申请日：2020-04-10

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Zhongbo Liu ,  Yuanyuan Kang ,  Furen Zheng ,  Yonghong Deng

IPC: H01M10/0565 ,  H01M10/0525

Abstract: In order to overcome the problem of low ionic conductivity in the existing polymer solid electrolyte, the disclosure provides a solid electrolyte, comprising a polymer, a lithium salt and an additive, the additive is selected from an aprotic organic solvent with a carbon number lower than 10 and a relative dielectric constant higher than 3.6; the mass content of the lithium salt is 30%˜90%, and the mass content of the additive is 0.01%˜2%, based on the total mass of the solid electrolyte being 100%. Further provided is a polymer lithium ion battery comprising the solid electrolyte. According to the solid electrolyte of the disclosure, a trace amount of small molecule aprotic organic solvent with high dielectric constant is introduced as an additive, which can inhibit crystallization of the solid electrolyte, promote transmission of lithium ions in the electrolyte, and improve the ionic conductivity of the solid electrolyte at room temperature.