公开(公告)号：US20060172201A1

公开(公告)日：2006-08-03

申请号：US10606706

申请日：2003-06-25

申请人： Eiki Yasukawa ,  Kunihisa Shima ,  Asao Kominato ,  Ken-ichi Ishigaki ,  Xianming Wang ,  Takashi Fujii ,  Minoru Kotato ,  Yasuyuki Shigematsu ,  Tooru Fuse ,  Hideharu Satou

发明人： Eiki Yasukawa ,  Kunihisa Shima ,  Asao Kominato ,  Ken-ichi Ishigaki ,  Xianming Wang ,  Takashi Fujii ,  Minoru Kotato ,  Yasuyuki Shigematsu ,  Tooru Fuse ,  Hideharu Satou

IPC分类号： H01M10/40

CPC分类号： H01M4/587 ,  H01M4/133 ,  H01M4/364 ,  H01M4/366 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2300/0037

摘要： The present invention is directed to a non-aqueous electrolyte for lithium secondary battery, having both flame retardancy (self-extinguishing property) or nonflammability (having no flash point) and high conductivity and being electrochemically stable, and a lithium secondary battery using the non-aqueous electrolyte. Specifically, the non-aqueous electrolyte of the present invention comprises a non-aqueous solvent which comprises (a) at least one phosphate selected from (a1) a chain state phosphate and (a2) a cyclic phosphate as an essential component, and which may contain (b1) a cyclic carboxylate and (b2) a cyclic carbonate. Further, the non-aqueous electrolyte comprises the above non-aqueous solvent which further comprises (c1) a vinylene carbonate compound and/or (c2) a vinylethylene carbonate compound, and at least one compound selected from the group consisting of (d1) a cyclic amide compound, (d2) a cyclic carbamate compound, and (d3) a heterocyclic compound.

摘要翻译： 本发明涉及一种锂二次电池的非水电解质，其具有阻燃性（自熄性）或不易燃性（无闪点），高导电性和电化学稳定性，并且使用非水性电解质的锂二次电池， 水电解液。 具体而言，本发明的非水电解质包含非水溶剂，其包含（a）至少一种选自（a1）链状磷酸酯和（a2）环状磷酸酯作为必要成分的磷酸酯的磷酸酯，并且其可以 含有（b1）环状羧酸酯和（b2）环状碳酸酯。 此外，非水电解质包含上述非水溶剂，其还包含（c1）碳酸亚乙烯酯化合物和/或（c2）乙烯基碳酸亚乙酯化合物和至少一种选自（d1）a 环状酰胺化合物，（d2）环状氨基甲酸酯化合物和（d3）杂环化合物。