The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 1980
Filed:
May. 22, 1978
Heinz P Fritz, Munich, DE;
Rheinisch-Westfalisches Elektrizitatswerk AG, Essen, DE;
Abstract
An electrode for use in electrolytic processes, e.g. as an energy storage electrode for a lead-dioxide accumulator or storage battery, is produced by subjecting a titanium support to a cleaning operation and subsequently to a surface treatment in a medium which is constituted by a titanium (IV) salt solution. This results in the formation of a titanium (IV) adsorbed layer onto which the lead dioxide active material is anodically deposited. An important characteristic of the invention is that the surface treatment is carried out such that hydrolysis of the titanium (IV) activated surface does not occur and hence the titanium at the surface of the support and the interface between the latter and the lead dioxide active material is in the tetravalent titanium state. The titanium deposit is from a titanium (IV) salt of an inorganic oxy acid, preferably perchloric acid, a salt of an organic acid, or a complex of the titanium (IV) ions with a complex former.