Title:
PRODUCTION OF METALLIC FOIL BY ELECTROLYSIS
Document Type and Number:
Japanese Patent JP3124848
Kind Code:
B2
Abstract:
PURPOSE: To prolong the life of anode having an electrode active coating contg. a metal oxide of the platinum group and to electrolytically produce metallic foil which does not contain impurities, such as lead.
CONSTITUTION: This process for production consists in using the insoluble metal anode having an electrode active material contg. the metal oxide of the platinum group as the anode and depositing metal from the inside of an electrolytic bath on cathode, thereby electrolyzing the metallic foil. The electrolysis is effected by incorporating 1 to 20ppm lead component into an electrolyte or using an electrolyte contg. 0.1 to 20ppm lead and 0.2 to 1ppm fluorine component, by which the metallic foil is electrolytically produced while a stable lead dioxide layer is formed on the electrode active coating contg. the metal oxide of the platinum group deposited from the inside of the electrolyte. As a result, the life of the anode is prolonged and the metallic foil in which the lead is not incorporated is obtd.
Inventors:
Makoto Shimada
Takayuki Shimamune
Yasuo Nakajima
Takayuki Shimamune
Yasuo Nakajima
Application Number:
JP30093592A
Publication Date:
January 15, 2001
Filing Date:
November 11, 1992
Export Citation:
Assignee:
Permelec Electrode Co., Ltd.
International Classes:
C25D1/04; C25D17/10; C25D17/12; (IPC1-7): C25D1/04
Domestic Patent References:
| JP6146051A |
Attorney, Agent or Firm:
Akira Yonezawa (7 others)