| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithium ion secondary battery offering excellent durability in charging and discharging. <P>SOLUTION: The lithium ion secondary battery includes a positive electrode layer including a positive electrode collector layer and a positive electrode active material layer, a negative electrode layer including a negative electrode collector layer, a graphene layer provided on at least a portion of the surface of the negative electrode collector layer and the surface of the positive electrode collector layer and containing graphene, and an electrolyte. <P>COPYRIGHT: (C)2013,JPO&INPIT |
