公开(公告)号：US06274271B1

公开(公告)日：2001-08-14

申请号：US08915719

申请日：1997-08-21

申请人： Nobuharu Koshiba ,  Emi Asaka ,  Koichi Chikayama ,  Yoko Sano

发明人： Nobuharu Koshiba ,  Emi Asaka ,  Koichi Chikayama ,  Yoko Sano

IPC分类号： H01M448

CPC分类号： H01M10/0568 ,  H01M4/364 ,  H01M4/483 ,  H01M4/485 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0569 ,  H01M2004/021 ,  H01M2010/4292

摘要： A non-aqueous electrolyte lithium secondary battery comprising a negative electrode of spinel-type lithium-titanium oxide with improved overcharge and overdischarge characteristics is disclosed. In this battery, the rechargeable electric capacity of the negative electrode is adjusted to be smaller than that of the positive electrode. In a preferable mode, the negative electrode may further comprise a material which has more negative potential than that of the lithium-titanium oxide, and shows electrochemical reversibility. An electrolyte comprising ethylene carbonate and LiN(CF3SO2)2 or LiN(C2F5SO2)2 is preferable.

摘要翻译： 公开了一种非水电解质锂二次电池，其包括具有改善的过充电和过放电特性的尖晶石型锂钛氧化物的负极。 在该电池中，将负极的可再充电电容调节为小于正极的可再充电电容。 在优选的模式中，负极还可以包含具有比锂 - 氧化钛更多的负电位的材料，并且显示出电化学可逆性。 包含碳酸亚乙酯和LiN（CF 3 SO 2）2或LiN（C 2 F 5 SO 2）2的电解质是优选的。