Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Reexamination Certificate
2007-06-05
2007-06-05
Kalafut, Stephen J. (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
C429S217000, C429S229000
Reexamination Certificate
active
10648134
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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European Search Report from EP 03711268 dated Nov. 6, 2006.
Armacanqui M. Edgar
Bushong William C.
Destephen Mario
Ndzebet Ernest
Roszkowski Andrew J.
Kalafut Stephen J.
Rayovac Corporation
Senniger Powers
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