Fuel cell stack health monitoring using groups of fuel cells
US10218018B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 3, 2016 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Feb 18, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel cell stack includes a plurality of cell groups and a controller wherein each cell group comprises a plurality of fuel cells and a group sensor which measures one or more electrical characteristics of the respective cell group. The controller comprises one or more processors and memory and is communicatively coupled to each group sensor. The one or more processors execute machine readable instructions to compare a measured electrical characteristic of each cell group to one or more thresholds stored in memory, and indicate the need for diagnostics of the fuel cell stack when the comparison indicates a non-systemic event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.