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:
Sep. 10, 1991
Filed:
Aug. 10, 1987
Varta Batterie Aktiengesellschaft, Hanover, DE;
Abstract
An aluminum substrate, with its natural oxide film intact, is made suitable for the electrochemical deposition polymerization of the electrode-active organic material, and for further use as an electrolyte holder and a charge eliminator, by providing the aluminum substrate with an electron-conducting coating of Au, Pt, Ni, Cr, Cr-Ni or C. In blank form, following pickling in an alkali, the aluminum substrate can either directly receive the deposit, or can be prepared for this purpose by electrochemical coating with a corrosion-resistant heavy metal. The aluminum can be used in the form of a netting or expanded metal so as to achieve a particularly firm connection between the metal and the polymer, and so that the resulting mesh cavities can be used to incorporate the amount of electrolyte which is necessary for charging of the polymer electrode. This allows the use of a thinner separator as the electrolyte reservoir, improving the power density of the cell.