公开(公告)号：US20240113287A1

公开(公告)日：2024-04-04

申请号：US18539282

申请日：2023-12-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chang PENG ,  Peipei CHEN ,  Hailin ZOU ,  Liye LI

IPC: H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0567

CPC classification number: H01M4/366 ,  H01M4/626 ,  H01M10/0525 ,  H01M10/0567

Abstract: This application provides a lithium-ion battery, including: an electrode assembly and an electrolytic solution. The electrolytic solution may comprise a first lithium salt LixR1(SO2N)xSO2R2, wherein R1 and R2 each independently represent an alkyl with 1 to 20 fluorine atoms or carbon atoms, or a fluoroalkyl with 1 to 20 carbon atoms, or a fluoroalkoxyl with 1 to 20 carbon atoms, and x is an integer of 1, 2, or 3, and a second lithium salt, wherein the second lithium is at least one selected from LiPF6, LiAsF6, or LiBF4, wherein a thickness of the metallic conductive layer, β1, is in a range of 0.52 μm to 2.4 μm, and a mass percentage of the first lithium salt, w, is 5% to 30% based on a total mass of the electrolytic solution.

公开(公告)号：US20210119260A1

公开(公告)日：2021-04-22

申请号：US17131803

申请日：2020-12-23

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu LIANG ,  Cuiping ZHANG ,  Ming ZHANG ,  Peipei CHEN ,  Hailin ZOU ,  Liye LI

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M4/525 ,  C07C311/48 ,  C07D327/00

Abstract: The present application relates to a lithium ion battery, comprising: a positive electrode plate, a negative electrode plate, a separator disposed between the positive electrode plate and the negative electrode plate, and an electrolytic solution, the positive electrode plate including a positive electrode current collector and a positive electrode active material layer provided on at least one side of the positive electrode current collector, and the electrolytic solution including an organic solvent, a lithium salt and an additive, wherein the lithium salt comprises a primary lithium salt, the primary lithium salt is a first compound in an amount of 30% or more relative to the total molar amount of the lithium salt, and the first compound has a structure represented by the following formula I, and wherein the additive comprises a second compound represented by the following formula II.

公开(公告)号：US20210119258A1

公开(公告)日：2021-04-22

申请号：US17135600

申请日：2020-12-28

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Hailin ZOU ,  Ming ZHANG ,  Changlong HAN ,  Cuiping ZHANG

IPC: H01M10/0567 ,  H01M10/0587 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M50/538

Abstract: The present disclosure relates to a lithium ion battery including an electrode assembly; and an electrolytic solution for infiltrating the electrode assembly and an electrical apparatus including the same, wherein the electrode assembly includes an electrode body, a positive electrode tab, and a negative electrode tab. The electrode body includes a positive electrode plate, a negative electrode plate, and a separator that are wound together around an axis. The positive electrode plate includes a positive current collector and a positive electrode material layer provided on at least one surface of the positive electrode current collector. In an axial direction (X), the electrode body has two opposite side portions, and the positive electrode tab and the negative electrode tab extend from the two side portions of the electrode body, respectively. A diffusion rate v of the electrolytic solution to the electrode body is from 0.01 μg/s to 5 μg/s.