Title:
【発明の名称】非水電解液二次電池
Document Type and Number:
Japanese Patent JP2952381
Kind Code:
B2
Abstract:
PURPOSE:To enhance the capacity and life of an electrode by using, as a negative electrode a one obtained by charging carbon powder worked to a specified particle size sphere into a foamed metal never alloyed with an alkali metal. CONSTITUTION:In a nonaqueous electrolytic secondary battery having a chargeable positive electrode 4, a nonaqueous electrolyte containing an alkali metal ion, and a negative electrode 2, the negative electrode 2 obtained by charging carbon powder worked to a sphere having a particle size of 1-300 microns to a foamed metal never alloyed with alkali metal is used. By working the carbon powder into the sphere, the charging property into the foamed metal which is a three-dimensional porous body is improved, and the carbon negative electrode 2 charged at a high density can be easily manufactured. The metal foamed body is obtained by plating the surface of a sponge foamed body such as polyurethane resin with nickel by electroless plating, and burning and removing the resin.
Inventors:
TERASAKI MASANAO
FUKUNAGA TAKAO
KOMATSU SHIGEO
FUKUNAGA TAKAO
KOMATSU SHIGEO
Application Number:
JP19767692A
Publication Date:
September 27, 1999
Filing Date:
June 30, 1992
Export Citation:
Assignee:
NIPPON DENCHI KK
International Classes:
C01B31/02; H01M4/134; H01M4/587; H01M4/66; H01M10/05; H01M10/0566; H01M10/0568; H01M10/0569; (IPC1-7): H01M4/02; H01M4/58; H01M10/40
Domestic Patent References:
| JP5325947A | ||||
| JP636759A | ||||
| JP5290833A | ||||
| JP1307157A | ||||
| JP1227354A | ||||
| JP1201908A | ||||
| JP63124363A |