CPC H01G 11/36 (2013.01) [H01G 11/56 (2013.01); H01G 11/58 (2013.01); H01G 11/82 (2013.01); H01G 11/08 (2013.01)] | 16 Claims |
1. An energy-storage device including a charge-storing supercapacitor cell comprised of electrodes at least one of which includes activated carbon having a high surface area and a nano-carbon component, an ion permeable membrane and an electrolyte characterised in that the cell including the electrodes and ion permeable membrane is encapsulated in a rigid polymer matrix, wherein the matrix is conductive; and wherein (i) the matrix comprises a conductive polymer; (ii) the matrix comprises carbon fibre; or (iii) the matrix comprises metal powders, foils, rods or meshes made of conducting metal.
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