http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110797512-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2004-027 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2004-021 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-386 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-625 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-366 |
| 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/H01M4-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-36 |
| filingDate | 2018-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110797512-B |
| titleOfInvention | Silicon-carbon negative electrode material, lithium ion battery negative electrode and lithium ion battery |
| abstract | The invention relates to a silicon-carbon negative electrode material, a lithium ion battery negative electrode and a lithium ion battery. The preparation method of the silicon-carbon negative electrode material comprises the following steps: 1) ball-milling and mixing nano silicon and carbon source substances, and calcining to prepare the silicon-based composite material; 2) uniformly dispersing the silicon-based composite material in a soluble carbon source solution, and drying to remove the solvent to obtain a coated composite material; 3) calcining the coated composite material to obtain a carbon-coated multistage composite material; 4) the carbon-coated multistage composite material and the carbon material are uniformly dispersed in a carbohydrate water solution, and the solvent is removed by drying. According to the invention, the multilevel silicon-carbon composite material is prepared through multiple silicon-carbon composite processes, so that the structural stability and the conductivity of the silicon-carbon cathode are improved. Due to the existence of the multi-stage silicon-carbon composite structure, the silicon-carbon negative electrode material has high specific surface area, is beneficial to full contact between electrolyte and the negative electrode material and quick exchange of lithium ions, and can provide excellent conditions for the exertion of the electrochemical performance of the lithium ion battery. |
| priorityDate | 2018-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 102.