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:
Jan. 29, 1991
Filed:
Jul. 19, 1989
Paul A Wycliffe, Kingston, CA;
Alcan International Limited, Montreal, CA;
Abstract
A bipolar cell unit is described for use in a metal/air battery, e.g. an aluminum/air battery. Each bipolar cell unit comprises (a) an air cathode having opposed major surfaces, one of the surfaces being exposed to air and the other of the surfaces being adapted for exposure to electrolyte, (b) a metal anode comprising a metal plate having opposed major surfaces with one plate major surface positioned in spaced juxtaposed relation to the cathode surface exposed to air thereby forming an air gap between the anode and cathode, (c) structural means for connecting the air cathode to the anode plate whereby the air cathode is supported by the anode plate such that air is permitted to move through the air gap while electrolyte is excluded and (d) an electrical connection between the anode and cathode.