公开(公告)号：US20230122863A1

公开(公告)日：2023-04-20

申请号：US18069640

申请日：2022-12-21

Applicant: BYD COMPANY LIMITED

Inventor： Feiyan QIAO ,  Ping LU ,  Haijun WANG ,  Rong HAO ,  Yi PAN

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

Abstract: The present disclosure relates to an electrolyte solution for a lithium-ion battery. The electrolyte solution includes an organic solvent, a lithium salt, and an additive. The electrolyte solution provided in the present disclosure includes a 6-membered heterocyclyl carboxylic anhydride additive, and can effectively inhibit gas production and the increase of interface impedance in the battery, improve the high-temperature stability of the battery, and prolong the service life of the battery.