Carbon supercapacitor electrode materials
AssigneeInorganic Specialists, Inc.
InventorDavid W. Firsich
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Abstract
A carbon material useful as an electrode in supercapacitors and a method for preparing the same. In one method, a phenolic resin powder, optionally combined with a carbon powder, is formed into a layer less than 0.01 inches thick; the temperature of the resin is increased at a rate of approximately 0.1 to 4.degree. C. per minute, thereby melting the resin into a porous network; the network is carbonized, hydrogenated in a hydrogen atmosphere and sulfonated.
Claims20
A carbon electrode formed from a carbon, which carbon is prepared by a process comprising the step of hydrogenating the carbon followed by the step of sulfonating the carbon.
A carbon electrode formed from a carbon which is prepared by a process comprising the steps of:
- forming a layer of phenolic resin powder;
- melting said phenolic resin powder under such conditions that the particles of said powder stick to themselves to form a porous network;
- carbonizing said porous network to form a carbonized network;
- and
- sulfonating said carbonized network.
A carbon electrode formed from a carbon which is prepared by a process comprising the steps of:
- forming a layer of phenolic resin powder and carbon powder;
- melting said phenolic resin powder under such conditions that the particles of said powder stick to themselves and to the carbon particles of said carbon powder to form a porous network;
- carbonizing said porous network to form a carbonized network;
- and
- sulfonating said carbonized network.
Dependencies are inferred from the claim text.