| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a positive electrode material for a lithium secondary battery offering high capacity and a high level of safety. <P>SOLUTION: Two or more different kinds of positive electrode active materials each represented by the formula: Li<SB POS="POST">1.1+x</SB>Ni<SB POS="POST">a</SB>M<SP POS="POST">1</SP><SB POS="POST">b</SB>M<SP POS="POST">2</SP><SB POS="POST">c</SB>O<SB POS="POST">2</SB>, where M<SP POS="POST">1</SP>represents Co, or Co and Mn, M<SP POS="POST">2</SP>represents Mo, W, or Nb, -0.07≤x≤0.1, 0.6≤a≤0.9, 0.05≤b≤0.38, and 0.02≤c≤0.06, are mixed and used. <P>COPYRIGHT: (C)2012,JPO&INPIT |
