Title:
Quality of cathode active material and a manufacturing method for the same for rechargeable lithium-ion batteries
Document Type and Number:
Japanese Patent JP5928445
Kind Code:
B2
Abstract:
The present invention provides: a positive electrode active material for a lithium ion secondary battery that can exhibit excellent cycle properties and excellent rate properties even when charged at a high voltage; and a process for producing the positive electrode active material. A positive electrode active material for a lithium ion secondary battery, characterized by comprising particles (X) each produced by coating the surface of a lithium-containing composite oxide with an oxide (I) as mentioned below, wherein the lithium-containing composite oxide comprises a Li element and at least one transition metal element selected from the group consisting of Ni, Co and Mn (wherein the molar amount of the Li element is more than 1.2 times the total molar amount of the transition metal element). Oxide (I): an oxide containing at least one metal element selected from the group consisting of Nb and Mo.
Inventors:
Kentaro Kadosaki
Sozo
Ken Kawasato
Sozo
Ken Kawasato
Application Number:
JP2013503541A
Publication Date:
June 01, 2016
Filing Date:
March 05, 2012
Export Citation:
Assignee:
Asahi Glass Co., Ltd.
International Classes:
H01M4/505; C01G53/00; H01M4/36; H01M4/525
Domestic Patent References:
| JP2010055778A | 2010-03-11 | |||
| JP2008140747A | 2008-06-19 | |||
| JP2004253305A | 2004-09-09 | |||
| JP2003068298A | 2003-03-07 | |||
| JP2000149948A | 2000-05-30 | |||
| JP2008071622A | 2008-03-27 | |||
| JP2010055778A | 2010-03-11 | |||
| JP2008140747A | 2008-06-19 | |||
| JP2004253305A | 2004-09-09 | |||
| JP2003068298A | 2003-03-07 | |||
| JP2000149948A | 2000-05-30 |
Attorney, Agent or Firm:
Sumio Tanai
Masatake Shiga
Suzuki Mitsuyoshi
Noriko Yanai
Masatake Shiga
Suzuki Mitsuyoshi
Noriko Yanai