http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102623717-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0cb011d981829bdcc85a40133a181da8 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-50 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-88 |
| filingDate | 2012-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e198aa6b8fac0ced21eba0724318b4c1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ef73ab252e4dd1751b9347c7b986e2c2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e295717af94ee8b19ae969fac611133f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2fa33259fdf326e1374743f894903897 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2c9b2c8ca7c123619bae16e4c9d42fc4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b2aae58a6cf905d8dd216c32f4bd07d |
| publicationDate | 2014-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102623717-B |
| titleOfInvention | Membrane electrode preparation method and membrane electrode |
| abstract | The invention provides a membrane electrode preparation method which comprises the steps of: utilizing a polytetrafluoroethylene impregnated method to prepare a cathode support layer which contains 40-60 wt% of polytetrafluoroethylene; applying a fluid which contains polytetrafluoroethylene emulsion to the surface of the cathode support layer, and performing heat treatment to prepare a cathode microporous layer which contains 30-50 wt% of polytetrafluoroethylene; adjusting the contents of hydrophilic perfluorosulfonic acid polymer in a cathode catalyst layer and a anode catalyst layer to prepare a strongly hydrophilic anode catalyst layer and a weakly hydrophilic cathode catalyst layer; and hot-pressing an electrode layer and a proton exchange membrane to obtain a membrane electrode. The transmission resistances of liquid water in the layers inside a hydrophilic membrane electrode and a hydrophobic membrane electrode are different, so that the water generated by the cathode flows back to the anode in the operation process of a cell, and the problem of insufficient water for anode reaction is solved. The membrane electrode plays an important role to a passive direct methanol fuel cell fed by pure methanol and high-concentration methanol. |
| priorityDate | 2012-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.