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Title:
FLAT TYPE SILVER CELL
Document Type and Number:
Japanese Patent JPS5626370
Kind Code:
A
Abstract:

PURPOSE: To obtain a cell with increased capacity and good shelf life by limiting the amount of graphite in a positive compound, which is to be molded integrally with foamed metal, to a value less than a specific amount and using a specific laminated membrane as a separator.

CONSTITUTION: A positive compound 3 which uses silver (I) oxide, a mixture of silver (I) oxide and manganese dioxide, or silver (II) oxide as an active material and a foamed metal 2 are molded to form a positive electrode 1. A conductive agent of graphite in the positive compound 3 is limited to an amount less than 1wt%, and a laminated membrane of cellophane 6 and polyethylene film 7 graft polymerized with acrylic or methacrylic acid is used as a separator 4 which is to be provided facing to the foamed metal layer 2, where the film 7 is faced to the foamed metal layer 2. A separator 4 which comprises cellophane 6 sandwiched with the films 7 may be used.


Inventors:
TSUBURAYA YOSHITANE
UETANI YOSHIO
SHIMIZU AKIO
ISHIUCHI HIROSHI
ISHIDA KAZUO
Application Number:
JP10185579A
Publication Date:
March 13, 1981
Filing Date:
August 10, 1979
Export Citation:
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Assignee:
HITACHI MAXELL
International Classes:
H01M4/62; H01M4/06; H01M6/12; H01M50/417; H01M50/429; H01M50/449; H01M50/457; H01M50/489; H01M50/491; (IPC1-7): H01M4/06; H01M6/06
Domestic Patent References:
JPS5339437A1978-04-11
JPS53146138A1978-12-19
JPS52144743A1977-12-02



 
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