| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of active material capable of improving a discharge capacity of a lithium ion secondary battery. <P>SOLUTION: A manufacturing method of active material according to the present invention includes a hydrothermal synthesis step of heating a mixed liquid containing a lithium source, a phosphate source, a vanadium source having pentavalent vanadium, water, and reductant under pressure. A concentration of the reductant in the mixed liquid is 0.005-0.4 mol/L. <P>COPYRIGHT: (C)2012,JPO&INPIT |
