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:
Oct. 07, 2003
Filed:
May. 18, 2001
Applicant:
Inventors:
Paolo Tosco, Turin, IT;
Laurent Kosbach, Puteaux, FR;
Yuan Yu, North Billerica, MA (US);
Claudio Orecchia, Castello d'Annone, IT;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/90 ;
U.S. Cl.
CPC ...
H01M 4/90 ;
Abstract
Gas-diffusion electrodes containing modified carbon products are described wherein the modified carbon product is a carbon product having attached at least one organic group. The modified carbon product can be used for at least one component of the electrodes such as the active layer and/or the blocking layer. Methods to extend the service life of electrodes as well as methods to reduce the amount of fluorine containing compounds are also described.