McDermott Will & Emery LLP
Active material of positive electrode for nonaqueous electrolyte secondary battery and process for producing the same
A positive electrode active material for a non-aqueous electrolyte secondary battery includes a particle of a composite oxide which contains Li and Co, wherein: the composite oxide further contains an element M1 and an element M2; the element M1 is at least one selected from the group consisting of Mg, Cu and Zn; the element M2 is at least one selected from the group consisting of Al, Ca, Ba, Sr, Y and Zr; the element M1 is uniformly distributed in the particle; and the element M2 is distributed in the surface portion of the particle more than in the inside thereof.
Matsushita Electric Industrial Co., Ltd.
Y H Y H H C C C H H C C H H
Y02P H01M Y02E H01M H01M C01P C01P C01P H01M H01M C01P C01G H01M H01M
additional additional additional additional additional additional additional additional additional additional additional inventional additional inventional
Takahiro Hiroshi Masatoshi Shinji
Okuyama Yoshizawa Nagayama Arimoto