Patent · US Expired

Fuel cell

US4643957A · kind A · utility

4Cited by
3References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 11, 1985
Grant dateFeb 17, 1987
Priority date
Expiry dateApr 11, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/50
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

In a fuel cell comprising a pair of counterposed gas-diffusible electrodes, an electrolyte-retaining, porous matrix provided between and in contact with the electrodes, a fuel chamber for feeding a gaseous fuel to the anode of the pair of the electrodes and an oxidizing agent chamber for feeding a gaseous oxidizing agent to the cathode of the pair of the electrodes, the cell performance is remarkably prevented from lowering by making the electrolyte saturated absorption amount of the cathode smaller than that of the anode, thereby preventing migration of the electrolyte in the electrolyte-retaining matrix.

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