http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103891014-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-1391 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-131 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-052 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-625 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P70-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-483 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-40 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-583 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C29-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-139 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-628 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-366 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-386 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-485 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-052 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-139 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-587 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-583 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-48 |
| filingDate | 2012-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103891014-B |
| titleOfInvention | Method for preparing negative electrode active material, negative electrode active material prepared therefrom, and lithium secondary battery having same |
| abstract | The present invention relates to a method for preparing a negative electrode active material and a negative electrode active material prepared by the method, the method comprising: (S1) forming a coating layer containing a carbon material on the surface of a core containing silicon oxide particles shell, to obtain a silicon oxide-carbon composite with a core-shell structure; (S2) mixing the silicon oxide-carbon composite with an oxygen-containing lithium salt, followed by heat treatment to produce a silicon oxide-lithium alloy, Thereby obtaining (SiO x ‑Li y )‑C (0< x <1.5, 0<y<4) composite with core-shell structure; The surface of the Li y )-C complex is washed and the complex is dried. According to the method of the present invention for preparing a negative active material of (SiO x -Li y )-C composite having a core-shell structure, the silicon oxide core has a carbon material coating on its surface to prevent the presence of oxygen-containing lithium salts. Oxygen penetrates into the silicon oxide, thereby easily controlling the amount of oxygen present in the silicon oxide. In addition, the negative active material of the present invention can prevent gelation of negative active material slurry by removing residual lithium source and reaction by-products between the lithium source and silicon oxide. In addition, the anode active material of (SiO x -Li y )-C composite with core-shell structure prepared by this method provides high capacity, good lifetime characteristics and superior thickness expansion control to the battery. |
| priorityDate | 2011-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 75.