The invention provides an electrolyte solution capable of providing a lithium ion secondary battery having low resistance and excellent cycle characteristics. The electrolyte solution for a lithium ion secondary battery contains a compound (1) represented by the following formula (1):
wherein R1 and R2 are each independently a C1-C4 alkyl group optionally containing an ether bond.
本发明提供了一种电解质溶液,能够提供一种具有低电阻和优异循环特性的
锂离子二次电池。用于
锂离子二次电池的电解质溶液含有由下式(1)表示的化合物(1):
其中 R1 和 R2 各自独立地为 C1-C4 烷基,可选地含有一个醚键。