Collapsing foam anode backing for zinc-air battery

Details Collapsing foam anode backing for zinc-air battery Collapsing foam anode backing for zinc-air battery

H - Electricity

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M

H01M 2/02 (2006.01) H01M 2/12 (2006.01) H01M 2/14 (2006.01) H01M 12/06 (2006.01) H01M 4/02 (2006.01) H01M 10/04 (2006.01)

Patent

CA 2125954

2125954 9312554 PCTABS00023 A metal-air cell (70), such as is used in a zinc-air battery, includes a tray (2) having one or more air holes (3) and a hydrophobic membrane (4) covering the air holes (3). A substantially flat air electrode (9) is oriented parallel with the axis of the tray. A sealant is employed to ensure that the contents of the cell do not leak between air electrode and the tray (2). A metal electrode (6) such as a zinc negative electrode and an electrolyte are located within the tray (2) interior and electronically isolated from the air electrode. A collapsible foam support (5) is used to accommodate a change in dimension of the metal electrode. Positive and negative terminals (13, 14) are affixed to the ends of the substantially cylindrical container (40) to create the cell (70).

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