http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110544769-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2004-028 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-625 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-136 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-5825 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-136 |
| filingDate | 2019-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110544769-B |
| titleOfInvention | Preparation method of high-compaction lithium iron phosphate positive pole piece |
| abstract | The invention discloses a preparation method of a high-compaction lithium iron phosphate positive pole piece, which relates to the technical field of lithium ion batteries and comprises the following steps: dispersing a carbon source binder in a solvent, stirring, adding a lithium iron phosphate anode material, and mixing to obtain anode slurry; coating the positive electrode slurry on a substrate, and rolling to obtain a positive electrode plate; and heating and calcining the positive pole piece in the protective gas atmosphere, naturally cooling to room temperature, soaking in a dimethyl formamide solution of polyvinylidene fluoride, taking out, and drying to obtain the polyvinylidene fluoride lithium ion battery. The lithium iron phosphate positive pole piece prepared by the method has high occupation ratio, a high-density structure is formed in the rolling process, micropores formed after a carbon source binder is carbonized in the heat treatment process are uniformly distributed among particles, so that the electrolyte is favorably infiltrated, and a 3D carbon network formed in the process plays a certain adhesion role, so that the finally prepared lithium iron phosphate positive pole piece has high compaction density and excellent rate capability. |
| priorityDate | 2019-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.