Title:
非水系二次電池
Document Type and Number:
Japanese Patent JP5016814
Kind Code:
B2
Abstract:
Using a positive electrode active material including spinel type manganese oxide as the main constituent, a novel low cost and high output power flat type nonaqueous secondary cell for HEVs that has increased safety at overcharge, and superior storage properties and cycle life is provided. A flat type nonaqueous secondary cell that has increased safety and is superior in storage and cycle properties even though the cell is a laminate type cell which does not have a blocking mechanism can be obtained by blending the spinel type lithium manganese oxide of the positive electrode and 5 wt % to 40 wt % of layered type lithium manganese oxide, to suppress storage deterioration at a high temperature and to simultaneously achieve safety when overcharged, and further, by adding a Li compound having a structure as shown in Formula (1) structure, to suppress deterioration of a mixed positive electrode active material during a high temperature cycle.
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Inventors:
Hiroshi Fukunaga
Yagi Yoshin
Shuichi Wada
Kenji Hara
Kono Kazue
Hiroshi Haruna
Yagi Yoshin
Shuichi Wada
Kenji Hara
Kono Kazue
Hiroshi Haruna
Application Number:
JP2005359729A
Publication Date:
September 05, 2012
Filing Date:
December 14, 2005
Export Citation:
Assignee:
株式会社日立製作所
日立ビークルエナジー株式会社
日立ビークルエナジー株式会社
International Classes:
H01M2/02; H01M4/02; H01M10/0567; H01M4/36; H01M4/505; H01M10/05; H01M10/0525; H01M10/0568; H01M10/0569; H01M10/42
Domestic Patent References:
| JP2003346798A | ||||
| JP2005005117A |
Attorney, Agent or Firm:
Manabu Inoue