| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve an anode in which an anode mixture layer containing an anode active substance and a binder is formed on an anode current collector and provide a nonaqueous electrolyte secondary battery which has a high capacity and excellent cycle characteristics. <P>SOLUTION: The nonaqueous electrolyte secondary battery is provided with a cathode 12, and anode 11 in which an anode mixture layer containing an anode active substance and a binder is formed on an anode current collector, and a nonaqueous electrolyte solution 14. The above anode active substance contains compound alloy powder containing tin, cobalt, carbon and graphite powder, and a porosity of the anode mixture layer formed on the anode current collector is within a range of 5-20 vol.%. <P>COPYRIGHT: (C)2009,JPO&INPIT |
