公开(公告)号：US20240055658A1

公开(公告)日：2024-02-15

申请号：US18163854

申请日：2023-02-02

申请人： CALB Co., Ltd.

发明人： Kui Li ,  Yuanyuan Tian ,  Juan Wang

IPC分类号： H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/58 ,  H01M4/583

CPC分类号： H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/5825 ,  H01M4/583 ,  H01M2004/028

摘要： The invention discloses an electrolyte solution containing lithium salt, an organic solvent, and additives. The additives include vinylene carbonate and 2,6-di-tert-butyl-4-methylphenol; the content of vinylene carbonate accounts for 0.5% to 5% of the total mass of the electrolyte, and the content of 2,6-di-tert-butyl-4-methylphenol accounts for 7*10−4% to 1.6% of the total mass of vinylene carbonate. The electrolyte of the invention can improve the film formation rate and film thickness of vinylene carbonate in the negative electrode, so that the obtained SEI film resistance is smaller, thereby improving the performance of the lithium battery.