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. 24, 1998
Filed:
Mar. 07, 1996
Applicant:
Inventors:
Jack Thomas West, McFarland, WI (US);
Franz Frederick Bonacker, Belleville, WI (US);
Terry Glen Messing, Verona, WI (US);
Assignee:
Rayovac Corporation, Madison, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
429190 ; 429229 ; 429245 ; 296231 ;
Abstract
An electrochemical cell having a negative current collector coated with an alloy of bismuth and tin maintains acceptable performance level and is protected from failure due to vibration. Improved environmental compatibility is achieved by coupling the coated current collector with an anode that contains an alloy powder of bismuth and zinc that is substantially free of mercury, cadmium, calcium, indium, gallium, thallium, lead, and tin. Performance of electrochemical cells can also be improved by providing a soluble bismuth additive in the cell electrolyte.