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.

Date of Patent:
Apr. 08, 2014

Filed:

May. 26, 2010
Applicants:

Ernest Ndzebet, Middleton, WI (US);

Mario Destephen, Madison, WI (US);

William C Bushong, Madison, WI (US);

M. Edgar Armacanqui, Madison, WI (US);

Andrew J Roszkowski, Madison, WI (US);

Viet H VU, Verona, WI (US);

Inventors:

Ernest Ndzebet, Middleton, WI (US);

Mario Destephen, Madison, WI (US);

William C Bushong, Madison, WI (US);

M. Edgar Armacanqui, Madison, WI (US);

Andrew J Roszkowski, Madison, WI (US);

Viet H Vu, Verona, WI (US);

Assignee:

Spectrum Brands, Inc., Middleton, WI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

Alkaline electrochemical cells having extended service life and acceptable gassing and corrosion properties are disclosed. An amphoteric surfactant can be incorporated into the gelled anode mixture of an alkaline electrochemical cell, optionally with an organic phosphate ester surfactant or a sulfonic acid type organic surfactant or both. Zinc particles having a defined distribution of particle sizes can also be incorporated into a zinc anode. The electrolyte included, in the anode mixture can have a reduced hydroxide concentration.


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