| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1b0688767b63f8b4abd2afa179ffc292
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f1036042e64d6482eeea73bf2b39edd2 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-505
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-485
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-366
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-628 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-525
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/H01M4-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 |
| filingDate |
2022-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_575b8047ec39b429c09c244e42095253
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eca7a510f61523dc7e4bfd13f3b772f0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c19dfdc1b994c5e26246973ec2f1eec
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c95604e5a332cea505b8ef430a18e07b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e877361ffd2fcfd361d4d1dfa6fa7a2c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17747749f5741ed9326addd7d2602b90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c50b46939a3821fc90e02c8fead8793d |
| publicationDate |
2022-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-114927693-A |
| titleOfInvention |
Positive electrode active material, preparation method thereof, electrochemical device and electronic device |
| abstract |
The present invention provides a positive electrode active material, a preparation method thereof, an electrochemical device and an electronic device. The positive electrode active material comprises a ternary material inner core and a titanium compound coated on the surface of the ternary material inner core. The material core includes zirconium element and strontium element; based on the total mass of metal elements in the positive electrode active material, the total content of zirconium element in the positive electrode active material is 1400ppm to 2200ppm, and the amount of strontium element in the positive electrode active material is 1400ppm to 2200ppm. The total content is 200 ppm to 800 ppm, and the content of titanium element in the titanium compound is 500 ppm to 1000 ppm. The positive electrode active material of the present invention has good crystallinity and interfacial stability, and has high gram capacity, Coulomb efficiency and cycle stability. |
| priorityDate |
2022-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |