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AssigneeQinetiq Limited
InventorsPaul Barrie Adams, Fazlil Ahmode Coowar, Gary Owen Mepsted, Christopher Douglas James Spooner, Girts Vitins
Estimating the term…
The invention relates to devices incorporating thin, lightweight electrochemical cells and their method of manufacture, whereby a thin flexible pouch-type cell (1) comprises at least one pair of overlying electrode layers separated from one another by an intermediate electrolyte layer (13), the cell exterior being defined by first and second laminated sheets (3, 9) sealed together, wherein each laminated sheet (3, 9) has an outermost layer (3a, 9a) forming a respective external face of the cell (1) and a coextensive, innermost, conductive layer (3b, 9b) that acts as a current collector layer (3b, 9b) and which supports an electrode layer (5, 11), although the conductive layer may also itself act as the active electrode layer.
A method of manufacturing a device comprising a thin, electrochemical cell with a total cell thickness of 200-1000 microns comprising at least one pair of overlying first and second electrode layers separated from one another by an intermediate electrolyte layer, the method comprising:
A device comprising:
A device consisting essentially of a thin, electrochemical cell with a thickness of 200-1000 microns comprising first and second laminated sheets separated from one another by an intermediate electrolyte layer, and sealed together, wherein the first laminated sheet has an outermost layer forming a respective external face of the cell and a coextensive innermost, conductive layer that acts as a current collector layer and having an active cathode material applied to the innermost conductive layer of the first laminated sheet and wherein the second laminated sheet consists only of an outermost polymeric layer and a coextensive innermost conductive zinc foil layer such that the zinc foil layer is an active anode material and wherein the first and/or second laminated sheet has an integrally formed extending tab to provide external electrical conductivity, wherein the first and second laminated sheets are sealed together around the cell periphery by means of at least one frame disposed within the cell, whereby the at least one frame forms an interconnected grid of grid-lines delineating the cell, wherein the grid-lines are perforated with an array of holes.
Dependencies are inferred from the claim text.