Lithium ion battery non-aqueous electrolyte and lithium ion battery

• Main Author: GAO RUYUE
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention provides a lithium ion battery non-aqueous electrolyte and a lithium ion battery. The non-aqueous electrolyte of the lithium ion battery comprises a lithium salt, a non-aqueous solvent and an additive, the additive comprises tris (trimethylsilane) phosphate and trimethylsilyl methane sulfonate. According to the invention, the cycle performance of a high-voltage lithium ion battery system is improved by utilizing the synergistic effect between the two additives and matching the two additives with other additives. 本发明提供一种锂离子电池非水电解液和锂离子电池。所述锂离子电池非水电解液包括锂盐、非水溶剂和添加剂；所述添加剂包括三(三甲基硅烷)磷酸酯和三甲基硅基甲烷磺酸酯。本发明通过利用两种添加剂之间具有的协同作用，并与替他其他添加剂相互配合使用，改善了高电压锂离子电池体系的循环性能。