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. 01, 1994
Filed:
Apr. 12, 1993
Applicant:
Inventors:
Gerald H Newman, Weymouth, MA (US);
G Stephen Kelsey, Nashua, NH (US);
Douglas C Magnuson, Westboro, MA (US);
Bhupendra K Patel, Mansfield, MA (US);
Douglas J Woodnorth, Needham, MA (US);
John S Miller, Sudbury, MA (US);
Alfred M Kasianowicz, Pembroke, MA (US);
Assignee:
Duracell Inc., Bethel, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429224 ; 429229 ;
Abstract
The present invention is an improved alkaline cell wherein the capacity of each of the anode and cathode is at least 0.48 and more preferably to at least 0.5 ampere-hour per cm.sup.3 of internal cell volume. This is achieved by employing zinc densities of at least 1.4 grams of zinc per cm.sup.3 of anode volume and MnO.sub.2 densities of at least 2.7 grams of MnO.sub.2 per cm.sup.3 of cathode volume.