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US 2023/0402235 A1Published application
Flexible supercapacitor with graphene electrodes embedded in hydrogel electrolyte
AssigneeRd Groupco Limited
InventorsSusan TAYLOR, Gabriel CASANO, Marco CAFFIO
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Abstract
A symmetric supercapacitor device comprising two electrodes, wherein each electrode comprises graphene, and a hydrogel electrolyte enveloping the electrodes in an active area, produces an enhanced operational voltage window. The graphene may be 3D graphene. The electrolyte may comprise a high molarity salt. The electrodes may have an interdigitated geometry.
Claims16
A symmetric supercapacitor device comprising:
- two electrodes, wherein each electrode comprises a 3D foam material obtained by laser irradiating a carbon source;
- and
- a hydrogel electrolyte enveloping the electrodes in an active area;
- and where the device has an operational voltage window that is greater than 2.5V.
1 more element
Dependencies are inferred from the claim text.