Title:
リチウムイオン二次電池
Document Type and Number:
Japanese Patent JP5378720
Kind Code:
B2
Abstract:
In a lithium ion secondary battery, a lithium-nickel-containing composite oxide that contains lithium and nickel is used as a positive electrode active material, and a negative electrode active material having a melting temperature of 1200° C. or less in a lithium-absorbed state is included in a negative electrode active material layer. By configuring as above, in the lithium ion secondary battery, it is possible to achieve higher capacity, higher output, and longer life, as well as further improved safety, and particularly in a nail penetration test, to suppress the heat generation due to internal short circuit and to reliably prevent the occurrence of thermal runaway.
More Like This:
Inventors:
Hideharu Takezawa
Fujikawa Mango
Nakai Miyuki
Shinji Kasamatsu
Tomohiko Yokoyama
Fujikawa Mango
Nakai Miyuki
Shinji Kasamatsu
Tomohiko Yokoyama
Application Number:
JP2008184420A
Publication Date:
December 25, 2013
Filing Date:
July 16, 2008
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H01M10/052; H01M4/13; H01M4/134; H01M4/136; H01M4/38; H01M4/48; H01M4/505; H01M4/525; H01M4/58; H01M10/0585; H01M10/0587
Domestic Patent References:
| JP2006324210A | ||||
| JP2006286313A | ||||
| JP2006128067A | ||||
| JP2005196970A | ||||
| JP2006338996A |
Foreign References:
| WO2006082846A1 | ||||
| WO2006134833A1 | ||||
| WO2006118013A1 |
Attorney, Agent or Firm:
Kazuo Ishii
Shinichi Kawasaki
Shinichi Kawasaki