Coating method of separator for fuel cell and separator for fuel cell
US11233248B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 19, 2018 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Nov 1, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The method for coating a separator for a fuel cell according to one form of the present disclosure includes the steps of: vaporizing a metal nitride precursor to obtain a precursor gas; introducing a metal nitride coating layer-forming gas containing the precursor gas and a reactive gas to a reaction chamber; applying a voltage to the reaction chamber so that the precursor gas and reactive gas may be converted into a plasma state, thereby forming a metal nitride coating layer on a substrate; introducing a carbon layer-forming gas containing a carbonaceous gas to the reaction chamber; and applying a voltage to the reaction chamber so that the carbonaceous gas may be converted into a plasma state, thereby forming a carbon coating layer on the metal nitride coating layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.