| 摘要 |
PROBLEM TO BE SOLVED: To provide a positive electrode active material which exhibits larger discharge capacity, and a lithium ion battery. SOLUTION: There are provided an cobalt-containing olivine silicate compound presented by formula (1): Li<SB POS="POST">2</SB>Fe<SB POS="POST">x</SB>Mn<SB POS="POST">y</SB>Co<SB POS="POST">z</SB>SiO<SB POS="POST">4</SB>, wherein x, y and z represent the numbers satisfying 0≤x<1, 0≤y<1, 0<z<1, x+y+z=1 and x+y≠0, and a lithium ion battery containing it. COPYRIGHT: (C)2013,JPO&INPIT |
