Patent · US Active

Alkaline cell with performance enhancing additives

US8691439B2 · kind B2 · utility

11Cited by

28References

14Claims

0Family size

Assignee

Spectrum Brands, Inc. · US

Inventors

Ernest Ndzebet · Madison, US
Mario Destephen · Joplin, US
William C. Bushong · Madison, US
M. Edgar Armacanqui · Madison, US
Andrew J. Roszkowski · Waunakee, US
Viet Vu · Medway, US

Key dates

Filing date	May 26, 2010
Grant date	Apr 8, 2014
Priority date	—
Expiry date	Apr 29, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.