Carbon graphite component for an electrochemical cell and method for making the component
US4938942A · kind A · utility
10Cited by
31References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1985 |
| Grant date | Jul 3, 1990 |
| Priority date | — |
| Expiry date | Jul 17, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for making a carbon-graphite component, such as a fuel cell substrate, suited for use in an electrochemical cell includes forming a precursor sheet structure comprising a resin, fibers that are graphitizable, and an inorganic compound containing boron and oxygen. Various details of the method are developed that effect the carbon yield of cellulose fibers used for the precursor sheet and the thermal and the electrical conductivity of the component. In one embodiment, the inorganic compound of boron and oxygen is boric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.