Title:
CATHODE ACTIVE MATERIAL, MANUFACTURING METHOD OF CATHODE ACTIVE MATERIAL, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2009004285
Kind Code:
A
Abstract:
To provide a cathode active material of high capacity which realizes superior load characteristics and a high initial charge and discharge efficiency of a nonaqueous electrolyte secondary battery.
The nonaqueous electrolyte secondary battery is constructed of a cathode, an anode, and a nonaqueous electrolyte, and performs charge and discharge by movement of lithium ions between the cathode and the anode. The cathode is composed of a cathode mixture and a cathode current collector. The cathode mixture contains a cathode active material, a conductive agent, and a binder. As a cathode active material, Li1+x-a(MnyM1-y)1-xO2b(0a0.3, 0b0.1, 0x0.4, 0y1, 0.951+x-a1.15, M is at least one transition metal excluding manganese (Mn)) is used.
Inventors:
TAKEDA KATSUTOSHI
SAITO MOTOHARU
SAWADA HIROSHI
FUJIMOTO MASAHISA
SAITO MOTOHARU
SAWADA HIROSHI
FUJIMOTO MASAHISA
Application Number:
JP2007165821A
Publication Date:
January 08, 2009
Filing Date:
June 25, 2007
Export Citation:
Assignee:
SANYO ELECTRIC CO
International Classes:
H01M4/131; H01M4/505; H01M4/525; H01M10/052
Domestic Patent References:
| JP2007141527A | 2007-06-07 | |||
| JP2007073487A | 2007-03-22 | |||
| JP2000034195A | 2000-02-02 | |||
| JPH11139830A | 1999-05-25 | |||
| JP2006127923A | 2006-05-18 | |||
| JP2006253119A | 2006-09-21 | |||
| JPH10270025A | 1998-10-09 |
Foreign References:
| WO2002078105A1 | 2002-10-03 |
Attorney, Agent or Firm:
Yoshito Fukushima