http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109244411-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-366 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-505 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/H01M4-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-505 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-485 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-525 |
| filingDate | 2018-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109244411-B |
| titleOfInvention | Mesoporous nano-tungsten oxide coated NCA cathode material and its preparation method and lithium ion battery |
| abstract | A mesoporous nanometer tungsten oxide-coated NCA positive electrode material and its preparation method and a lithium ion battery. The preparation method includes: 1) preparing a hydroxide precursor by a co-precipitation method; 2) obtaining an oxide precursor by heat treatment; 3) sintering the oxide precursor and a lithium salt in two stages to obtain Li x Ni 1-y-z Co y Al z O 2 positive electrode material, wherein: 1≤x≤1.15, 0.05≤y≤0.15, 0≤z≤0.05; 4) cleaning and drying; 5) mixing the dried product with mesoporous silica template and tungsten oxide, Then high-temperature sintering crystallizes the tungsten oxide in the pores and removes the template with HF acid to prepare a nano-mesoporous tungsten oxide-coated high-capacity NCA material with large surface energy and double pore size. The present invention also provides the NCA positive electrode material coated with the mesoporous nano-tungsten oxide prepared by the above preparation method and a lithium ion battery using the positive electrode material. The preparation method of the invention has low requirements for synthesis equipment, simple operation, no special requirements for sintering process, and can prepare an NCA positive electrode material suitable for industrial scale production, with high capacity and long life. |
| priorityDate | 2018-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 76.