| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a positive electrode material such as a lithium ion secondary battery which is low-cost and has high energy density and furthermore which has superior cycle characteristics. <P>SOLUTION: A positive electrode material contains polyoxometalate represented by chemical formula: A<SB POS="POST">3</SB>(XMO<SB POS="POST">24</SB>H<SB POS="POST">6</SB>)(A: elements in second to fourth periods of group 1 in the periodic table, X: elements in second to fifth periods of group 13 in the periodic table, and M: elements in fourth to sixth periods of groups 5 to 6 in the periodic table). <P>COPYRIGHT: (C)2013,JPO&INPIT |
