An electrolyte additive for a lithium battery, an electrolyte including the electrolyte additive, and a lithium battery including the electrolyte additive are disclosed. The electrolyte additive for a lithium battery includes a sulfonylmethylisocyanide-based compound. The electrolyte additive including the sulfonylmethylisocyanide-based compound may form a protective layer having improved high-temperature stability on positive and negative electrodes of a lithium battery, thereby improving the safety of the lithium battery.
本发明公开了一种用于
锂电池的电解质添加剂、一种包括该电解质添加剂的电解液以及一种包括该电解质添加剂的
锂电池。
锂电池电解质添加剂包括磺酰甲基异
氰化物基化合物。包括磺酰甲基异
氰化物基化合物的电解质添加剂可在
锂电池的正极和负极上形成具有更好高温稳定性的保护层,从而提高
锂电池的安全性。