公开(公告)号：US11881557B2

公开(公告)日：2024-01-23

申请号：US18200034

申请日：2023-05-22

申请人： SHANGHAI AOWEI TECHNOLOGY DEVELOPMENT CO., LTD.

发明人： Hengheng Xia ,  Zhongxun An ,  Chongyang Yang ,  Xueru Xu ,  Lulu Suo ,  Tingli Huang ,  Mingxia Wu ,  Jiafei Yu ,  Li Hua

IPC分类号： H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/133 ,  H01M4/131

CPC分类号： H01M10/0567 ,  H01M4/131 ,  H01M4/133 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2300/0042

摘要： A lithium ion electrolyte, a preparation method and application thereof are provided. The lithium ion electrolyte includes: an ester solvent, a lithium salt and an electrolyte additive, where the electrolyte additive includes a compound as shown in the following formula I. According to the electrolyte provided by the present disclosure, all components have a synergistic effect and are matched with one another, so that the electrolyte can improve the interface stability of a high-nickel positive electrode material and prolong the cycle life of a lithium ion battery and a lithium ion capacitor.