申请人:Asahi Kasei Kabushiki Kaisha
公开号:EP3279997A1
公开(公告)日:2018-02-07
The purpose of the present invention is to provide a nonaqueous electrolyte that contains acetonitrile having an excellent balance between viscosity and the dielectric constant and a fluorine-containing inorganic lithium salt, wherein the generation of complex cations comprising a transition metal and acetonitrile is suppressed, excellent load characteristics are exhibited, and increases in internal resistance upon repeated charge/discharge cycles are suppressed; a further purpose of the present invention is to provide a nonaqueous secondary battery. The present invention relates to a nonaqueous electrolyte which contains: a nonaqueous solvent comprising acetonitrile; a fluorine-containing inorganic lithium salt; and a specific nitrogenous cyclic compound typified by benzotriazole.
本发明的目的是提供一种非水电解液,该电解液含有在粘度和介电常数之间具有极佳平衡的乙腈和含氟无机锂盐,其中包含过渡金属和乙腈的复合阳离子的生成受到抑制,显示出极佳的负载特性,并且在重复充放电循环中内阻的增加受到抑制;本发明的另一个目的是提供一种非水二次电池。本发明涉及一种非水电解液,其中包含:由乙腈组成的非水溶剂;含氟无机锂盐;以及以苯并三唑为典型代表的特定含氮环状化合物。