Patent · US Expired

Electrode substrate for electrochemical cells based on low-cost manufacturing processes

US6511768B1 · kind B1 · utility

5Cited by

3References

42Claims

0Family size

Assignee

SGL Carbon AG · DE

Inventors

Victor Trapp · Augsburg, DE
Peter Wilde · Meitingen, DE
Heiko Leinfelder · Nördlingen, DE

Key dates

Filing date	Mar 1, 2001
Grant date	Jan 28, 2003
Priority date	—
Expiry date	May 2, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

This invention relates to electrode substrates for electrochemical cells, particularly low-temperature fuel cells, and processes for their production. Graphitized fiber web structures are used that have a preferred non-planar fiber alignment resulting in high through-plane conductivity. These structures are further impregnated and processed to adjust the final product properties.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.