Scientists enhance energy storage capacity of graphene supercapacitors via solar heating

 https://techxplore.com/news/2022-01-scientists-energy-storage-capacity-graphene.html

"polypyrrole uniformly into the graphene network by pulse electrodeposition. Graphene/polypyrrole composite electrodes were obtained and a new type of solar-thermally enhanced supercapacitor was thus constructed. This supercapacitor has many advantages. When the temperature dropped to -30°C, the electrochemical performance of the supercapacitor, which is normally severely degraded, could be enhanced rapidly to room temperature under solar irradiation at light intensities of 1.0 kW m-2"

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