http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102143779-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-1395 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-037 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-134 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-134 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-037 |
| filingDate | 2018-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-102143779-B1 |
| titleOfInvention | Purity elevation method of silicon materials and manufacturing method of lithium ion battery electrode |
| abstract | The present invention, (a) a silicon-based material containing some silica (silica), and at least one material selected from the group consisting of ammonium fluoride (NH 4 F) and acidic ammonium fluoride ((NH 4 ) 2 HF 2 ) Mixing, (b) heat-treating the mixed product to convert the silica contained in the silicon-based material into ammonium silicon fluoride, and (c) adding the heat-treated result to a solution containing distilled water. And (d) selectively separating the precipitate in the solution to dissolve the ammonium silicon fluoride to obtain a silicon-based material having a reduced silica content compared to the silicon-based material of step (a). It relates to a method for improving the purity of a material and a method for manufacturing an electrode of a lithium ion battery using the same. According to the present invention, silica can be etched without using a high-risk hydrofluoric acid (HF) solution to obtain a high-purity silicon-based material. |
| priorityDate | 2018-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.