http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109449436-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2004-021 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2004-028 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-505 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-505 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-525 |
| filingDate | 2018-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109449436-B |
| titleOfInvention | Cation vacancy positive electrode material and preparation method thereof |
| abstract | A positive electrode material with cation vacancy and a preparation method thereof relate to a lithium ion battery. The chemical formula of the positive electrode material with cation vacancy is Li a [Li b Mn c Co d Ni e ]O f . Dissolving at least one of manganese salt, cobalt salt and nickel salt in deionized water to prepare a mixed salt solution A; dissolving sodium carbonate and ammonium bicarbonate in deionized water to prepare a solution B; adding the mixed salt solution A into the solution B to obtain a mixed solution; standing the mixed solution, filtering, washing and drying to obtain a carbonate precursor; calcining the dried carbonate precursor to obtain an oxide precursor; and mixing the oxide precursor with lithium salt, and sintering to obtain the cation vacancy positive electrode material. And uniformly mixing and sintering a precursor product obtained by a coprecipitation method and a proper amount of lithium source with the stoichiometric ratio lower, thus obtaining the layered cathode material with a bulk phase containing a large number of cation vacancies. The positive electrode material containing the cation vacancy can reduce the usage amount of the lithium source and reduce the production cost. |
| priorityDate | 2018-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 78.