| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve such problems that when a lithium-aluminum-manganese alloy is used as a negative electrode of a lithium secondary battery having a positive electrode, the negative electrode, and a nonaqueous electrolyte comprising a solute and a solvent, internal resistance is high and a pulsed current is hardly taken out when used as a power source for memory backup. <P>SOLUTION: The internal resistance of the lithium secondary battery is lowered by using as the negative electrode an aluminum-manganese alloy electrochemically etched in a hydrochloric acid solution, having a manganese content of 0.1-10 mass % to the aluminum-manganese alloy in a state that lithium is not inserted. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
