http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113937296-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/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-624 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y30-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-628 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-131 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-483 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y30-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-131 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-48 |
| filingDate | 2021-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113937296-B |
| titleOfInvention | A silicon-oxygen negative electrode material and preparation method thereof, negative electrode sheet and secondary battery |
| abstract | The invention provides a silicon-oxygen negative electrode material and a preparation method thereof, a negative electrode sheet and a secondary battery, comprising the following steps: S1, adding the silicon-oxygen material to an alkaline solution with a pH value of 8-9 to disperse, adding dopamine hydrochloride Continue to disperse, wash and centrifuge, and dry to obtain silicon oxydopamine nanoparticles, which are sintered to obtain silicon oxycarbon nanoparticles; S2, mix and stir the silicon oxycarbon nanoparticles and the titanium source, heat, cool, wash and centrifuge, and dry to obtain Titanium silicon oxycarbon nanoparticles; S3, dissolving titanium silicon oxycarbon nanoparticles in water, ultrasonically dispersing, then adding dopamine hydrochloride to continue dissolving and dispersing, then adding a strong alkaline substance to stir, washing, centrifuging, and drying to obtain dopamine-modified silicon Oxygen anode material. Compared with the prior art, the negative electrode material obtained by the present invention improves the volume expansion problem of the current silicon material during the charging and discharging process, ensures its structural stability during the charging and discharging process, and thus improves various performances of the battery. . |
| priorityDate | 2021-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.