公开(公告)号：US20100248036A1

公开(公告)日：2010-09-30

申请号：US12695632

申请日：2010-01-28

申请人： Takefumi Okumurai ,  Shigetaka Tsubouchi ,  Ryo Inoue ,  Kunio Fukuchi

发明人： Takefumi Okumurai ,  Shigetaka Tsubouchi ,  Ryo Inoue ,  Kunio Fukuchi

IPC分类号： H01M6/16

CPC分类号： H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  Y02T10/7011

摘要： A lithium secondary battery is intended to suppress deterioration upon storage at high temperature of 50° C. or higher without deteriorating the output characteristics at a room temperature.The battery includes a positive electrode capable of occluding and releasing lithium ions, a negative electrode capable of occluding and releasing lithium ions, a separator disposed between the positive electrode and the negative electrode and an electrolyte, in which the electrolyte contains a compound represented by formula (1) (R′O)nSiR4-n  (Formula 1) where R′ represents an alkyl group, R is selected from hydrogen, an alkyl group, an alicyclic group, and an aryl group, each of R′ and R may be identical or different from each other, the alkyl group has a straight or branched chain having fewer than 10 carbon atoms, and n is an integer of 1 to 3, and a compound having a polymerizable group in the molecule.

摘要翻译： 锂二次电池旨在抑制在50℃或更高的高温下储存时的劣化，而不会降低室温下的输出特性。 电池包括能够吸留和释放锂离子的正极，能够吸留和释放锂离子的负极，设置在正极和负极之间的隔膜和电解质，其中电解质含有式 （1）（R'O）nSiR4-n（式1）其中R'表示烷基，R选自氢，烷基，脂环族基和芳基，R'和R各自可以是 相同或不同，烷基具有少于10个碳原子的直链或支链，n为1〜3的整数，分子内具有聚合性基团的化合物。