| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a lithium secondary battery with better battery performance (for instance, capable of obtaining higher capacity). <P>SOLUTION: The method is for manufacturing a lithium secondary battery equipped with a positive electrode containing an olivine type phosphate compound as a positive electrode active material, a negative electrode, and nonaqueous electrolyte solution. The method includes a step of assembling a lithium secondary battery consisting of the positive electrode, the negative electrode and the nonaqueous electrolyte solution, and a step of applying initial charging to the lithium secondary battery thus assembled. At the initial charging step, a preliminary charge and discharge is carried out by one cycle including a charging process so that a desorption rate of lithium in the positive electrode active material becomes 10-85%, and then, full charging is carried out. <P>COPYRIGHT: (C)2011,JPO&INPIT |
