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。