Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer – spacer or materials for use therewith
Reexamination Certificate
2005-02-09
2010-10-26
Crepeau, Jonathan (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer, spacer or materials for use therewith
C429S249000, C029S623500
Reexamination Certificate
active
07820330
ABSTRACT:
An alkaline storage battery includes: a positive electrode containing nickel hydroxide; a negative electrode; a separator layer intervening between the positive electrode and the negative electrode; and an alkaline electrolyte. The separator layer includes a water-absorbing polymer, a water repellent, an alkaline aqueous solution, and a scavenger capable of trapping an element which leaches from the negative electrode into the alkaline aqueous solution. The scavenger comprises an oxygen-containing metal compound. The negative electrode is a hydrogen storage alloy electrode, a cadmium electrode or a zinc electrode. The water-absorbing polymer comprises a cross-linked polymer having at least one kind of monomer unit selected from the group consisting of an acrylate unit and a methacrylate unit.
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Dansui Yoshitaka
Furukawa Naoji
Iwakura Chiaki
Izumi Yoichi
Crepeau Jonathan
McDermott Will & Emery LLP
Panasonic Corporation
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