Abstract: A composite structure comprises a plurality of first layers each comprising graphene; and a plurality of second layers each comprising an aerogel, wherein the first and second layers alternate in the composite structure. A method for manufacturing a composite structure comprising first and second layers comprises providing a plurality of the second layers, each second layer comprising an aerogel, providing a plurality of first layers, each layer comprising graphene; and arranging the first and second layers so that the layers form a composite structure in which the plurality of first and second layers alternate.

Abstract: A composite structure comprises a plurality of first layers each comprising graphene; and a plurality of second layers each comprising an aerogel, wherein the first and second layers alternate in the composite structure. A method for manufacturing a composite structure comprising first and second layers comprises providing a plurality of the second layers, each second layer comprising an aerogel, providing a plurality of first layers, each layer comprising graphene; and arranging the first and second layers so that the layers form a composite structure in which the plurality of first and second layers alternate.

Abstract: A device for collecting electricity from the atmosphere comprises: a collecting element adapted to draw electricity from the atmosphere; an electrically conductive element electrically connected to the collecting element for transmitting electricity collected by the collecting element to an output; and a support member capable of holding the collecting element in an elevated position, wherein the electrically conductive element comprises a composite structure extending at least partially along its length, the composite structure comprising a first layer comprising graphene.