http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20020029295-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f92d05dd9978d10335976b2c4a493ec1 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P70-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-411 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0565 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0585 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-414 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L27-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0565 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-491 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-403 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-36 |
| filingDate | 2001-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_09521d21be04bb2e46a729c029c92151 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1a31dbdc5bb1e6f9a97a9a0dfce0077 |
| publicationDate | 2002-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20020029295-A |
| titleOfInvention | Polymeric mesoporous separator elements for laminated lithium-ion rechargeable batteries |
| abstract | Mesoporous polymer membranes used as ion-conductive interelectrode separators in rechargeable battery cells are costly polymer materials, volatile fluid solvents for these polymer materials, and low mixing and low volatility with the solvents, which do not exhibit sufficient dissolving power to the polymer materials. It is prepared from a coating composition consisting of a secondary fluid of media. The layer is cast from the composition such that the solvent and the nonsolvent coated carrier fluid are volatilized and gelled and solidified under conditions where the solvent volatilizes at a rate substantially faster than the nonsolvent to form a layer that becomes a self supporting membrane. As a result, the polymeric material initially gels in the more nonsolvent dominant region of the layer to separate the nonsolvent as droplets that are substantially uniformly distributed throughout the matrix of polymeric material. The nonsolvent is then volatilized from the droplets to create a similar distribution of mesoporous pores throughout the membrane matrix. The porous membrane can absorb a significant amount of electrolytic solution that provides suitable ion conductivity for use in rechargeable battery cells. The addition of inert particulate filler to the coating composition provides additional strength throughout the membrane, and because of the preferential accumulation of particles in the dispersed nonsolvent droplets, membrane mesopores that maintain electrolyte absorption by preventing the collapse of voids at the cell stacking temperature. Provide particulate support in the interior. |
| priorityDate | 2000-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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