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:
Mar. 28, 1995
Filed:
Dec. 07, 1992
Purush Chalilpoyil, Lincoln, MA (US);
Henry S Padula, Milford, MA (US);
Peter B Harris, Stow, MA (US);
Ron Bing-Wo, Mississauga, CA;
Greg Brual, Brampton, CA;
Fred Kasianowicz, Pembroke, MA (US);
Duracell Inc., Bethel, CT (US);
Abstract
The invention relates to a method for inhibiting the occurrence of load voltage instability in zinc anodic alkaline cells. The anode active material contains a gelled slurry of zinc alloy particles, a gelling agent, an aqueous alkaline solution and a mixed surfactant containing an anionic surfactant and a non-ionic surfactant. The gelled anode active material inhibits the occurrence of load voltage instability and simultaneously reduces hydrogen evolution even though the cell contains no added amounts of mercury.