Method for detecting abnormality in fuel cell
US7445861B2 · kind B2 · utility
1Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2002 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Mar 14, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention detects quickly and with high precision abnormalities in fuel cells. In a method of detecting abnormalities in a fuel cell 1 comprising a plurality of unit cells that generate power by supplying hydrogen gas to an anode and supplying air to a cathode of each unit cell, the abnormality in the fuel cell 1 is detected based on the speed of the decrease in the cell voltages after stopping the fuel cell, i.e., after stopping the supply of the reacting gases to the fuel cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.