Fuel cell—battery hybrid system for transportation use
US11862780B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2020 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Feb 21, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power generating system comprised of a hydrogen fuel cell and rechargeable battery connected together in series to be used as a load following system without the use of a DC-DC converter. The hydrogen fuel cell's cathode air compressor is driven off of the output of this power generation system. This is made possible by the following innovations: A novel way to wire the systems in series with the use of switches and bypass diodes, a method to limit the system output voltage so that we do not exceed the maximum voltage of downstream components, and an isolated DC-DC converter to charge the rechargeable battery with the hydrogen fuel cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.