http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112993301-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-50 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-0206 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-0228 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-0258 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-0228 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-0258 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-0206 |
| filingDate | 2021-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112993301-B |
| titleOfInvention | Preparation method of metal bipolar plate of proton exchange membrane fuel cell |
| abstract | The invention relates to the technical field of fuel cells, and provides a preparation method of a metal bipolar plate of a proton exchange membrane fuel cell. The metal bipolar plate is prepared by adopting a method of coating, welding and hydroforming, so that the coating thickness can be ensured to be uniform, and the consistency of the corrosion resistance and the contact resistance of each part of the bipolar plate can be ensured; when two layers of metal plates are welded, an unwelded area is reserved on each of two sides, when hydraulic forming is carried out, high-pressure liquid is injected between the two layers of metal plates by taking the unwelded area as a liquid injection hole, the upper layer of metal plate is attached to the cavity wall of the upper template, and the lower layer of metal plate is attached to the cavity wall of the lower template under the action of hydraulic pressure, so that the cathode plate and the anode plate are formed simultaneously. The method of the invention is adopted for hydraulic forming, the coating is not damaged, the formed flow channel has high precision and high product qualification rate, and the invention realizes the simultaneous forming of the cathode plate and the anode plate for the first time. |
| priorityDate | 2021-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.