Title:
リチウム二次電池正極用のリチウム含有複合酸化物の製造方法
Document Type and Number:
Japanese Patent JP5065884
Kind Code:
B2
Abstract:
To provide a cathode active material for a lithium secondary battery, which is low in gas generation and has high safety and excellent durability for charge and discharge cycles even at a high charge voltage. A process for producing a lithium-containing composite oxide represented by the formula LipLqNxMyOzFa (wherein L is at least one element selected from the group of B and P, N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than N, 0.9≰p≰1.1, 1.0≰q<0.03, 0.97≰x<1.00, 0≰y≰0.03, 1.9≰z≰2.1, q+x+y=1 and 0≰a≰0.02), wherein a lithium-containing composite oxide powder containing an N element and, if necessary, an M element and fluorine, is preliminarily prepared; the lithium-containing composite oxide powder is mixed with an aqueous solution containing the L element source; from the obtained mixture, an aqueous medium is removed, followed by the firing in an oxygen-containing atmosphere at from 300 to 1,050° C.
More Like This:
Inventors:
Ken Kawasato
Tokumitsu Kato
Megumi Uchida
Nao Saito
Kazuhara Manabu
Tokumitsu Kato
Megumi Uchida
Nao Saito
Kazuhara Manabu
Application Number:
JP2007502642A
Publication Date:
November 07, 2012
Filing Date:
February 09, 2006
Export Citation:
Assignee:
AGC Seimi Chemical Co., Ltd.
International Classes:
H01M4/525; C01G51/00; H01M4/1315; H01M4/505; H01M4/13915
Domestic Patent References:
| JP2004363097A | 2004-12-24 | |||
| JP2001243981A | 2001-09-07 | |||
| JP2000149923A | 2000-05-30 |
Attorney, Agent or Firm:
Kenji Izumina
Toshiharu Ogawa
Ryozo Yamamoto
Toshiharu Ogawa
Ryozo Yamamoto