Patent · US Expired

Composite article

US6039823A · kind A · utility

7Cited by
21References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 9, 1998
Grant dateMar 21, 2000
Priority date
Expiry dateMar 9, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T442/59
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

The graphitized composite article of the present invention is formed by embedding carbon fiber felt in a matrix of a carbon filler; a thermosetting resin and a solvent; curing the composite article; then, carbonizing and graphitizing the cured composite article to form the graphitized composite article for use as a separator plate capable of substantially inhibiting mixing of hydrogen and oxygen and/or the loss of electrolyte within a fuel cell stack. The graphitized composite article may be a graphitized laminate.

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