公开(公告)号：US20220376298A1

公开(公告)日：2022-11-24

申请号：US17620336

申请日：2019-11-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chengdu LIANG ,  Chengyong LIU ,  Yongsheng GUO ,  Quan FAN

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0568 ,  H01M50/46

Abstract: An electrolyte for a lithium-ion battery, a lithium-ion battery, a battery module, a battery pack, and an apparatus are provided. The electrolyte includes an organic solvent, an electrolyte lithium salt dissolved in the organic solvent, and an additive, where the additive is a compound represented by following formula I. The electrolyte can inhibit generation of lithium dendrites in the lithium-ion battery, improve cycle performance of the battery, and also improve flame retardancy of the battery, thereby effectively resolving defects in the existing technology.

公开(公告)号：US20230223545A1

公开(公告)日：2023-07-13

申请号：US18125174

申请日：2023-03-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chengyong LIU ,  Meng CHENG ,  Ang FU ,  Bobing HU ,  Yongsheng GUO ,  Quan FAN

IPC: H01M4/62 ,  H01M4/134 ,  H01M4/38 ,  H01M10/052 ,  H01M4/04 ,  H01M4/1395

CPC classification number: H01M4/628 ,  H01M4/134 ,  H01M4/382 ,  H01M10/052 ,  H01M4/0402 ,  H01M4/1395 ,  H01M2004/027

Abstract: Embodiments of the present application provide a lithium metal negative electrode, a preparation method therefor and related lithium metal battery and device. The lithium metal negative electrode may comprise: a negative electrode current collector; at least one lithium-based metal layer provided on at least one surface of the negative electrode current collector; and an ion-conducting polymer modification layer, which is located on the surface of one of the at least one lithium-based metal layer and comprises at least catalytic amount of a Lewis acid, the Lewis acid containing cations of a metal capable of forming an alloy-type active material with lithium.

公开(公告)号：US20220109189A1

公开(公告)日：2022-04-07

申请号：US17550946

申请日：2021-12-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chengyong LIU ,  Yongsheng GUO ,  Chengdu LIANG ,  Quan FAN

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/052

Abstract: This application provides an electrolytic solution and a lithium metal battery containing the electrolytic solution. The electrolytic solution includes a lithium salt, an organic solvent, and an additive. The additive includes a sultam compound represented by Structural Formula I. R is selected from substituted or unsubstituted C1 to C10 hydrocarbyls, where a substituent is selected from a phenyl, C1 to C6 alkyls, or C1 to C6 alkenyls. X is a sulfur atom or a phosphorus atom. R1 and R2 each are independently selected from an oxygen atom, a fluorine atom, a chlorine atom, a bromine atom, and substituted or unsubstituted C1 to C10 hydrocarbyls. Both R1 and R2 are not oxygen atoms concurrently.