| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a negative electrode for lithium secondary battery by which both reversibility and durability are improved in a nonaqueous electrolyte secondary battery, and provide a lithium secondary battery using the negative electrode. <P>SOLUTION: A negative electrode for lithium ion secondary battery 1 includes: a carbon sheet 2 as a collector; and a negative electrode active material layer 3 that is provided on the carbon sheet 2 and includes Fe<SB POS="POST">2</SB>O<SB POS="POST">3</SB>as a negative electrode active material. Therefore, reversibility of conversion reaction accompanied with charge-discharge reaction of the negative electrode active material is obtained, thereby improving durability of the negative electrode. <P>COPYRIGHT: (C)2012,JPO&INPIT |
