http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107216472-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2429-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2201-011 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2003-2227 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2323-12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D129-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J7-0427 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-446 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-449 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-411 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-403 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D7-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D129-04 |
| filingDate | 2017-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107216472-B |
| titleOfInvention | High-heat-resistance lithium battery composite diaphragm and preparation method thereof |
| abstract | The invention discloses a high-heat-resistance lithium battery composite diaphragm and a preparation method thereof. Adding polyvinyl alcohol powder into deionized water, swelling for 10-12 h at room temperature, and stirring for 4-5 h at 85-95 ℃ to obtain a polyvinyl alcohol solution; mixing and stirring ethyl orthosilicate, absolute ethyl alcohol and deionized water, dropwise adding ammonia water, and stirring at 40-45 ℃ for 0.5-1 h to obtain a mixture; adding the obtained mixture and alumina powder into the obtained polyvinyl alcohol solution, and stirring for 10-12 h at 40-45 ℃ to obtain coating slurry; and coating the slurry on the surface of the pretreated polyolefin microporous membrane by adopting a coating method, drying at room temperature, and then drying in vacuum to obtain the high-heat-resistance lithium battery composite diaphragm. The preparation method disclosed by the invention is simple in process, green and environment-friendly, and the prepared composite diaphragm is high in heat resistance, good in liquid absorption and retention rate, excellent in electrochemical performance and good in application prospect. |
| priorityDate | 2017-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.