http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108217640-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/H01M4-587 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-587 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-225 |
| filingDate | 2018-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108217640-B |
| titleOfInvention | Preparation method of negative electrode of lithium ion battery capable of being used for quick charging |
| abstract | The invention discloses a method for modifying a graphite cathode of a quick-charging lithium ion battery, belonging to the field of quick charging of lithium ion batteries. The invention treats the layered graphite by a method of intercalation of interlayer ions under acid corrosion and oxidizing conditions, and is used for the negative electrode material of the quick-charging lithium ion battery. The technical scheme is that the layered graphite is placed in an acidic mixed solution with a certain concentration and a certain oxidability, the temperature is controlled to be about 25-35 ℃, and the layered graphite is filtered and washed after being mixed for a certain time. The graphite material which is porous and has larger interlayer spacing is obtained by the corrosion of oxidizing acid and the action of embeddable ions and is used for the negative electrode of the quick-charging lithium ion battery. Compared with other fast-charging cathode materials, the method has the advantages of simple process flow, low cost and easy realization of equipment. The prepared material has the advantages of increasing the interlayer spacing and the surface micropores, not changing the layered structure of the material, increasing the migration channel of lithium ions, limiting the growth of lithium dendrites and reducing the migration resistance of the lithium ions under high current. |
| priorityDate | 2018-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.