| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithium ion battery improved in the initial charge and discharge efficiency of a high-capacity cathode material and also enhanced in electric capacity and energy density. <P>SOLUTION: The lithium ion battery has its main cathode active material composed of two kinds of the first cathode active material is in a discharge state in a stage of constituting a battery, and the second cathode active material is in a charged state in a stage of constituting the battery. <P>COPYRIGHT: (C)2009,JPO&INPIT |
