Sgl Carbon Se

Centre National De La Recherche Scientifique

L'universite D'orleans

Zentrum Fur Sonnenenergie Und Wasserstoff Forschung Baden-wurttemberg Gemeinnutzige Stiftung

Mario Wachtler

Martin Cadek

Wilhelm Frohs

Encarnacion Raymundo-Pinero

Francois Beguin

Margret Wohlfahrt-Mehrens

Harry Doering

Brita Emmermacher

A composite suitable as a charge-storing material for electrochemical capacitors contains carbon nanotubes and a carbonaceous materiel. The carbonaceous material is the carbonization residue of a biopolymer or seaweed rich in heteroatoms. Wherein the carbonization residue of the biopolymer or seaweed is electrically conductive and has a heteroatom content as detected by XPS of at least 6%.

Composite containing carbonized biopolymers and carbon nanotubes and method of making the composite

In a method of manufacturing a porous coke suitable as a charge-storing material in electrochemical capacitors, one manufactures or provides a non-calcined isotropic coke with spherical or onion-shaped morphology and low graphitizability as a starting material. The starting material is comingled with a caustic alkali to obtain a homogenous mixture. The homogenous mixture is heat treated at a temperature in a range between 650 and 950&#xb0; C. to obtain the porous coke. The porous coke is washed and neutralized.

Porous coke and method of producing the porous coke

Growing community of inventors

Ulm, Germany

Mario Wachtler