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:
Aug. 18, 1987
Filed:
Feb. 04, 1986
Applicant:
Inventors:
John E Oltman, Mt. Horeb, WI (US);
Gerald F Sanden, Verona, WI (US);
Assignee:
Rayovac Corporation, Madison, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 27 ; 429 66 ;
Abstract
A case for enclosing a metal anode, air cathode, and electrolyte of a metal/air electrochemical cell is prepared by securing a multi-functional metallic cover, which has means for providing ingress of oxygen to the air cathode, to a non-conductive container. The container is capable of expanding to accomodate the growth of anodic material during discharge, while the cover is capable of supporting the air cathode against distortion on discharge and serving as the positive terminal of the cell. Metal/air cells and batteries constructed with such a case are also described.