| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an active material for a sodium ion battery, in which deposition of metal Na is suppressed. <P>SOLUTION: According to the present invention, an active material for a sodium ion battery containing an M element, a Ti element, an O element and an S element which are group III elements, and having an M<SB POS="POST">2</SB>Ti<SB POS="POST">2</SB>O<SB POS="POST">5</SB>S<SB POS="POST">2</SB>crystalline phase is provided to solve the problem. <P>COPYRIGHT: (C)2013,JPO&INPIT |
