The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 2011
Filed:
Aug. 01, 2008
Applicants:
Martin Cadek, Augsburg, DE;
Francois Beguin, Olivet, FR;
Encarnacion Raymundo-pinero, Orleans, FR;
Inventors:
Assignees:
SGL Carbon SE, Wiesbaden, DE;
Centre National de la Recherche Sientifique, Paris, FR;
L'Universite d'Orleans, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 31/00 (2006.01); H01B 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A carbon material suitable for the preparation of electrodes for electrochemical capacitors is obtained by single-stage carbonization of biopolymers with a large content of heteroatoms. Neither addition of an activating agent during carbonization nor subsequent gas phase activation is necessary. Several biopolymers which are available by extraction from seaweed are suitable precursors. Alternatively, the seaweed containing such biopolymers is carbonized directly.