http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019228904-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_35dbc60da9891d57c4047fb7b8689516 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-50 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-0221 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-188 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-0221 |
| filingDate | 2019-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e84425b0de44b02685b6a7aece501ee6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_285a867021fa990b75fe058066575153 |
| publicationDate | 2019-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2019228904-A1 |
| titleOfInvention | Amphoteric electrolyte membrane with selective and balanced ion transport properties and a redox flow battery comprising an electrolyte membrane |
| abstract | It is the objective of the present invention to provide a membrane with high ion selectivity, a balancing influence on the vanadium transport in all-vanadium redox-flow environment, high physicochemical stability and potentially low cost. These characteristics can be obtained from an amphoteric ion exchange membrane with a defined ratio of anion and cation exchange capacity, in particular for use in a redox flow battery, comprising: a) a mechanically robust and chemically resistant base polymer film (matrix); b) ion exchange groups covalently bound to the polymer matrix, being a mixture of anion exchange groups and cation exchange groups; c) a comonomer comprising two anion exchange groups per molecule to yield a ratio of anion exchange groups to cation exchange groups of 1.5-4 (50-300% excess of anion exchange groups over cation exchange groups) in order to balance the transport of positively charged redox-active ions; d) a quaternary bonded alpha-C atom in the comonomers used to protect the resulting polymer sterically against chemical degradation; and e) optionally additional functional constituents, such as crosslinkers and / or antioxidants. |
| priorityDate | 2018-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 84.