| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an anode for a lithium ion secondary battery with excellent cycle characteristics. <P>SOLUTION: For the anode for the lithium ion secondary battery 1 having an active material layer 3 consisting of a lithium-active active material of either a tin, silicon, or antimony system formed on a collector layer 2 made of copper or a copper alloy, a reinforcing layer 4 made of a conductive and lithium-inactive matter is formed on the above active material layer 3, a second active material layer 3 is formed on the reinforcing layer 4, with that second active material layer 3 as an outermost layer. <P>COPYRIGHT: (C)2008,JPO&INPIT |
