公开(公告)号：US20070134558A1

公开(公告)日：2007-06-14

申请号：US11637695

申请日：2006-12-13

申请人： Hiroshi Fukunaga ,  Youshin Yagi ,  Shuichi Wada ,  Konji Hara ,  Kazushige Kohno ,  Hiroshi Haruna

发明人： Hiroshi Fukunaga ,  Youshin Yagi ,  Shuichi Wada ,  Konji Hara ,  Kazushige Kohno ,  Hiroshi Haruna

IPC分类号： H01M10/40 ,  H01M4/50

CPC分类号： H01M4/505 ,  H01M4/364 ,  H01M4/366 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/0585 ,  Y02T10/7011

摘要： Using a positive electrode active material including spinel type manganese oxide as the main constituent, a novel low cost and high output power flat type nonaqueous secondary cell for HEVs that has increased safety at overcharge, and superior storage properties and cycle life is provided. A flat type nonaqueous secondary cell that has increased safety and is superior in storage and cycle properties even though the cell is a laminate type cell which does not have a blocking mechanism can be obtained by blending the spinel type lithium manganese oxide of the positive electrode and 5 wt % to 40 wt % of layered type lithium manganese oxide, to suppress storage deterioration at a high temperature and to simultaneously achieve safety when overcharged, and further, by adding a Li compound having a structure as shown in Formula (1) structure, to suppress deterioration of a mixed positive electrode active material during a high temperature cycle.

摘要翻译： 使用包括尖晶石型氧化锰作为主要成分的正极活性物质，提供了一种用于HEV的新型低成本和高输出功率平面型非水电解槽，其在过充电时具有增加的安全性，并且具有优异的储存性能和循环寿命。 即使电池是不具有阻挡机构的层压型电池，也可以通过将正极的尖晶石型锂锰氧化物和 5重量％〜40重量％的层状锂锰氧化物，以抑制高温下的储存劣化，同时在过充电时同时达到安全性，进一步通过加入具有式（1）所示结构的Li化合物， 以抑制高温循环中的混合正极活性物质的劣化。