| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithium secondary battery, having a high capacity, particularly suppressing reduction of capacitance in use under a high-temperature environment, improving a cycle characteristic, and having a long life. <P>SOLUTION: A negative electrode active material contains a silicon oxide denoted by SiOx (x means a number satisfying 0.5≤x≤1.5). A positive electrode contains a specific lithium nickel oxide and a specific iron phosphate lithium compound. <P>COPYRIGHT: (C)2013,JPO&INPIT |
