ELECTROLYTIC SOLUTION, METHOD FOR PREPARING ESTER COMPOUND CONTAINED THEREIN AND LITHIUM SECONDARY CELL
申请人:NEC Corporation
公开号:US20180342769A1
公开(公告)日:2018-11-29
Provided is a lithium secondary cell which has high capacity, suppresses deterioration in capacity and improves cycle characteristics particularly when used in high-temperature environments and has long lifespan. Provided is a lithium secondary cell including a positive electrode active material layer containing a positive electrode active material, a negative electrode active material layer containing a negative electrode active material and an electrolytic solution for immersing the positive and negative electrode active material layers, wherein the electrolytic solution contains at least one certain ester compound.
提供的是一种锂二次电池,具有高容量,在高温环境中使用时抑制容量退化并改善循环特性,具有长寿命。提供的锂二次电池包括一个包含正极活性材料的正极活性材料层,一个包含负极活性材料的负极活性材料层,以及用于浸泡正极和负极活性材料层的电解质溶液,其中电解质溶液至少含有一种特定酯化合物。