Title:
NEGATIVE ELECTRODE ZINC-CAN FOR DRY CELL, ITS MANUFACTURE, AND MANGANESE DRY CELL USING IT
Document Type and Number:
WIPO Patent Application WO/1995/029510
Kind Code:
A1
Abstract:
A negative electrode for dry cells made of a zinc-based alloy containing 0.004-0.800 wt. % of indium and 0.001-0.25 wt. % of titanium or 0.002-0.500 wt. % of zirconium and significantly containing no such harmful matters as mercury, cadmium, and lead. A method of manufacturing the zinc-can negative electrode by which up to 0.800 wt. % of indium can be added to a zinc-based alloy by hot rolling the alloy within a temperature range from 270 �C to 370�C. A manganese dry cell in which a separator coated with a paste containing 0.1-8 wt. % of InCl3 is provided on the internal surface of the zinc can. The zinc can is filled with an anode mixture prepared by adding manganese dioxide and a conductive carbon material such as of acetylene black to an electrolyte containing 35-50 wt. % of ZnCl2. A carbon rod is provided at the center of the anode mixture as a current collector.
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Inventors:
NAKAGAWA YOSHITERU (JP)
NITTONO SHINJI (JP)
YASUMURA TAKAAKI (JP)
MURATA CHIHIRO (JP)
MATSUI KAZUO (JP)
NISHIDA KUNIYOSHI (JP)
MURAKOSHI MITUO (JP)
IZUMI AKIHIDE (JP)
NITTONO SHINJI (JP)
YASUMURA TAKAAKI (JP)
MURATA CHIHIRO (JP)
MATSUI KAZUO (JP)
NISHIDA KUNIYOSHI (JP)
MURAKOSHI MITUO (JP)
IZUMI AKIHIDE (JP)
Application Number:
PCT/JP1995/000845
Publication Date:
November 02, 1995
Filing Date:
April 27, 1995
Export Citation:
Assignee:
FDK CORP (JP)
NAKAGAWA YOSHITERU (JP)
NITTONO SHINJI (JP)
YASUMURA TAKAAKI (JP)
MURATA CHIHIRO (JP)
MATSUI KAZUO (JP)
NISHIDA KUNIYOSHI (JP)
MURAKOSHI MITUO (JP)
IZUMI AKIHIDE (JP)
NAKAGAWA YOSHITERU (JP)
NITTONO SHINJI (JP)
YASUMURA TAKAAKI (JP)
MURATA CHIHIRO (JP)
MATSUI KAZUO (JP)
NISHIDA KUNIYOSHI (JP)
MURAKOSHI MITUO (JP)
IZUMI AKIHIDE (JP)
International Classes:
H01M4/42; H01M6/08; H01M6/10; H01M4/02; (IPC1-7): H01M4/06; H01M4/12
Foreign References:
JPH05125470A | 1993-05-21 | |||
JPS4915927A | 1974-02-12 | |||
JPS5590070A | 1980-07-08 |
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