| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithium ion cell with durability against high rate electric discharge improved, and an anode for the cell. <P>SOLUTION: The lithium ion cell is provided with an anode 40 with an anode active material layer 45 retained at an anode collector 42 made of conductive metal. The anode active material layer 45 contains a first active material layer 451 mainly composed of a carbon material (such as graphite) as a first anode active material, and a second active material layer 452 mainly composed of a second anode active material (such as a lithium titanium oxide) having a higher electropositive potential than the above carbon material, provided between the anode collector 42 and the first active material layer 451. <P>COPYRIGHT: (C)2009,JPO&INPIT |
