http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112635914-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-449 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-411 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-44 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/H01M50-434 |
| filingDate | 2020-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112635914-B |
| titleOfInvention | A lithium ion battery separator with heat resistance and high mechanical strength and preparation method thereof |
| abstract | The present invention proposes a lithium ion battery separator with heat resistance and high mechanical strength, comprising a polyolefin porous substrate, a porous heat-resistant layer coated on one surface or both surfaces of the substrate, a polyolefin porous base The porosity of the material is 20% to 60%, the needling strength is ≥200gf, and the peel strength of the porous heat-resistant layer is ≥10N/m; the porous heat-resistant layer includes inorganic fillers, binders, thickeners, dispersants and wetting agents. The mass of the inorganic filler accounts for more than 90% of the mass of the porous heat-resistant layer, and the mass of the binder accounts for 4% to 7% of the mass of the porous heat-resistant layer. In the present invention, the porous heat-resistant layer is coated on at least one surface of the polyolefin porous substrate to improve the heat-resistant performance of the separator, effectively improve the safety of the lithium ion battery, prevent fire and explosion caused by thermal shock, and solve the problem of thermal The problem is that the shrinkage rate is large and the strength is greatly reduced after heating. |
| priorityDate | 2020-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.