Cylindrical air-cell

Details Cylindrical air-cell Cylindrical air-cell

H - Electricity

01

M

H01M 6/02 (2006.01) H01M 2/08 (2006.01)

Patent

CA 2138115

The sealing of the top and/or bottom of the cylindrical positive electrode of an air-cell is improved and leakage of the electrolyte from the jellied zinc negative electrode disposed within the positive electrode which is constituted of a collector layer, catalyst layer, and a porous layer is prevented. By utilizing a positive electrode constituted of a metallic collector layer made of a metal mesh or such, a catalyst layer disposed around said collector, and a fluororesin porous layer as an air diffusion layer, an outer cup and an inner cup are pressed on the top of the positive electrode in order to prevent the leakage of the electrolyte. The possible leakage of electrolyte from the bottom of the positive electrode can be prevented by providing a resin sealing body with a ring shaped indentation fitted to the bottom of a positive electrode, and by inserting this resin sealing body into the positive electrode cannister, and by pressing the side wall. of the positive electrode cannister against the side of the resin sealing body, in order to fit the bottom of the positive electrode to the indentation of the resin sealing body.

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