Bipolar plate seal assembly and fuel cell stack with such a bipolar plate seal assembly
US11114678B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 24, 2018 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | May 23, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A bipolar plate seal assembly for a fuel cell is provided. The bipolar plate seal assembly includes: a bipolar plate having a flow field for a reactant medium on at least one of its main sides, and a supply area arranged adjacent to the flow field, in which supply ports for feeding and discharging the reactant medium and optionally for feeding and discharging a coolant are arranged; and at least one seal assembly having an electrically insulating layer covering at least one or more sections of the supply area of the bipolar plate and having recesses that correspond to the supply ports of the bipolar plate, and for each recess, a seal circumferential thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.