Formulation of zinc negative electrode for rechargeable...

Details Formulation of zinc negative electrode for rechargeable... Formulation of zinc negative electrode for rechargeable...

Filed on

2006-04-25

Date issued

2006-04-25

Examiner

Ryan, Patrick Joseph (Department: 1745)

Patent Class

Chemistry: electrical current producing apparatus, product, and

SubClass

Current producing cell, elements, subcombinations and...

SubSubClass

Electrode

Other Related Categories

C429S206000, C429S232000, C204S292000

Type

Reexamination Certificate

Status

active

Patent number

07033700

Description

ABSTRACT:
A zinc electrode is provided for use in electrochemical cells having an alkaline electrolyte and high cycle life. The zinc electrode comprises a mixture of zinc oxide together with an inorganic fibre which contains silica and alumina. Preferably, the composition of the inorganic fibre is in the range of 80% to 99% alumina, and 1% to 20% silica. Typically, the zinc electrode will further comprise an inorganic fibre additive in the range of 2% to 15% by weight of the zinc oxide electrode. Also, the zinc electrode will typically further include 2% up to 10% of bismuth oxide.

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patent: 5215836 (1993-06-01), Eisenberg
patent: 5721072 (1998-02-01), Mototani et al.
patent: 60167264 (1985-03-01), None
patent: 07-296813 (1995-11-01), None
patent: 07296813 (1995-11-01), None
patent: 0755087 (1997-01-01), None

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