http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109860526-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y30-00 |
| filingDate | 2018-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109860526-B |
| titleOfInvention | Preparation method of graphite material doped with metal oxalate lithium battery composite negative electrode material |
| abstract | The invention discloses a preparation method of a graphite material doped with metal oxalate lithium battery composite negative electrode material, and belongs to the technical field of lithium ion battery negative electrode materials. The invention adopts a method of electrostatic self-assembly to prepare a metal oxalate complex-M (C) 2 O 4 ) ‑2(n‑1) Is electrostatically adsorbed to the graphite conductive material and polyelectrolyte. The graphite conductive material treated by the strong cationic polyelectrolyte has positive charges on the surface, is subjected to electrostatic attraction self-assembly with the synthesized metal oxalate complex with negative charges, is thoroughly cleaned by deionized water after the electrostatic attraction self-assembly is finished, and is dried by inert gas. And sintering the composite material in a vacuum tube furnace under the inert atmosphere condition to obtain the graphite/metal oxalate composite material with the crystallization water. The invention overcomes the problems of low conductivity, high first irreversible capacity, poor cycle performance and the like of the metal oxalate negative electrode material caused by the self reason in the prior art. |
| priorityDate | 2018-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 85.