| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a high-performance positive electrode active material produced using lithium vanadium phosphate while reducing the usage of lithium vanadium phosphate. <P>SOLUTION: There are provided: a positive electrode active material obtained by the composite formation of lithium manganese phosphate and lithium vanadium phosphate; and a method for producing the positive electrode active material. (Here, the lithium manganese phosphate is represented as Li<SB POS="POST">a</SB>Mn<SB POS="POST">b</SB>M<SB POS="POST">c</SB>PO<SB POS="POST">4</SB>where 0<a≤1, 0<b≤1 and 0.9≤b+c≤1 are satisfied, the M represents an element selected from among Mg, Ti, Fe, Ni and Co, the lithium vanadium phosphate is represented as Li<SB POS="POST">d</SB>(V<SB POS="POST">1-x</SB>Me<SB POS="POST">x</SB>)<SB POS="POST">2</SB>(PO<SB POS="POST">4</SB>)<SB POS="POST">3</SB>where 0<d≤3 and 0≤X<1 are satisfied, and the Me represents an element selected from among Ti, Mn, Fe and Ni.) <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
