http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113675405-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-72 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B32-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-386 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y30-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y40-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-625 |
| classificationIPCInventive | 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/C01B33-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y40-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y30-00 |
| filingDate | 2021-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113675405-B |
| titleOfInvention | A kind of fluffy carbon-coated silicon composite material and its preparation method and application |
| abstract | The invention discloses a fluffy carbon-coated silicon composite material and a preparation method and application thereof. First, silicon nano-particles, polyacrylic acid and sorbitol are dispersed in a solvent, and then the silicon nano-particles are coated with a polymer by evaporating the solvent method. A polymer composed of a mixture of acrylic acid and sorbitol, and then placed in an inert atmosphere at a certain temperature to esterify polyacrylic acid and sorbitol into bonds. The esterified polymer is insoluble in solvents such as water or ethanol and has a low carbon residue rate (10.7 wt%). It is very convenient to continue to coat a layer of organic matter with high carbon residue rate by dispersing it in a suitable solvent, so that a layer of polymer is coated on the surface of the silicon nanoparticle. Finally, in the carbonization process, the inner layer polymer decomposes to produce gas, so that the outer layer polymer forms carbon with a fluffy structure. The fluffy carbon shell is beneficial to alleviate the volume effect of silicon during the charging and discharging process when silicon is used as the anode material of lithium-ion batteries. |
| priorityDate | 2021-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.