Title:
全固体型ポリマー電池用負極活物質および全固体型ポリマー電池
Document Type and Number:
Japanese Patent JP5317435
Kind Code:
B2
Abstract:
This invention provides an all solid polymer battery comprising 1) a lithium negative electrode active material containing crystal grains and crystal grain boundaries, at least a part of the crystal grain boundaries being exposed on the lithium negative electrode active material, the exposed area of the crystal grain boundaries being 0.02 to 0.5 cm per cm of the surface, 2) a dry polymer electrolyte containing a specific ethylene glycol ether, a polymer containing an electron donating oxygen atom in its skeleton and a lithium salt, or 3) a noncrystalline lithium nitride layer provided between a negative electrode and a polymer electrolyte. This constitution can provide an all solid polymer battery which can realize reduced resistance of the interface of the negative electrode and the polymer electrolyte and has a high capacitance and excellent cycle properties. Further, the all solid polymer battery can realize the suppression of an increase in internal resistance during storage and is excellent in high rate discharge properties after storage.
Inventors:
Ueda Tomohiro
Application Number:
JP2007164999A
Publication Date:
October 16, 2013
Filing Date:
June 22, 2007
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H01M4/38; H01M4/06; H01M4/134; H01M4/40; H01M6/18; H01M10/052; H01M10/0565
Domestic Patent References:
| JP63146355A | ||||
| JP2007005279A | ||||
| JP8130006A | ||||
| JP10302770A |
Attorney, Agent or Firm:
Kazuo Ishii
Shinichi Kawasaki
Shinichi Kawasaki