Mechanically rechargeable, electrochemical metal-air battery

Details Mechanically rechargeable, electrochemical metal-air battery Mechanically rechargeable, electrochemical metal-air battery

1994-07-01

1995-05-23

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 34, 429 72, 429 49, H01M 1206

Patent

active

054180805

ABSTRACT:
A mechanically rechargeable, electrochemical metal-air battery of the type having a plurality of metal-air cells, each of said cells comprising (a) a housing having a base, two major surfaces and two minor surfaces, defining an interior space for containing therein a replaceable metal electrode having an electrically conductive skeletal member encompassed by an active metal component, the interior space communicating with an opening opposite the base through which the replaceable metal electrode is selectively removed to enable the mechanical replacement thereof with a freshly charged metal electrode; (b) at least one generally planar, air permeable but liquid impermeable, air electrode, each of the electrodes being installed in a window-like opening provided in at least one of the major surfaces; and (c) an electrolyte in contact with the metal and air electrodes; the improvement comprising a first woven mesh separator attached to an inner, electrolyte-facing surface of each of the air electrodes and a second, woven mesh separator attached to and covering a major surface of the replaceable metal electrode facing each of the air electrodes, the first and second woven mesh separators being in sliding relationship to each other.

REFERENCES:
patent: 3682706 (1972-08-01), Yardney et al.
patent: 4246324 (1981-01-01), de Nora et al.
patent: 4389466 (1983-06-01), Joy
patent: 4950561 (1990-08-01), Niksa et al.
patent: 5318861 (1994-06-01), Harats et al.

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