http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114614018-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2004-027 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G35-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G33-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0569 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-628 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G35-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G33-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0569 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-62 |
| filingDate | 2022-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114614018-B |
| titleOfInvention | A kind of negative electrode material of lithium ion battery and its preparation method and lithium ion secondary battery |
| abstract | The invention relates to the field of lithium ion batteries, and discloses a lithium ion battery negative electrode material, a preparation method thereof, and a lithium ion secondary battery. The negative electrode material is lithium niobium titanium composite oxide, and its general formula is: Li 2δ Nb 2‑x Tax TiO 7+δ , wherein, 0.025≤δ≤0.25, 0≤X≤0.05. The preparation method is as follows: mix the lithium source compound, the niobium source compound, the tantalum source compound, and the titanium source compound according to the stoichiometric ratio, and add deionized water to prepare a slurry; the slurry is ball-milled and then spray-dried to obtain the precursor powder; The precursor powder is calcined to obtain the negative electrode material. The present invention uses lithium-niobium-titanium composite oxide with low lithium content as the negative electrode material, which can reduce the sintering temperature of the material and effectively inhibit the side reaction between the material and the electrolyte; at the same time, the present invention uses tantalum to dope and modify it, It can further improve the specific capacity of the material and the first charge and discharge efficiency, and has better rate performance. |
| priorityDate | 2022-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 171.