| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_35e918cca525c0c4e8acfcc0383a0960 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-51
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G53-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G53-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G53-006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G53-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G45-006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G51-006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G51-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G45-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-1391
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G51-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G53-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G45-00 |
| filingDate |
2021-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bf5b150d79a883d859fdb96f5a3ed175
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_372b095a2d04cc7f4fc6a790643c7bd1 |
| publicationDate |
2022-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-4023610-A1 |
| titleOfInvention |
Wet synthesis method for ncma high-nickel quaternary precursor |
| abstract |
The invention belongs to the technical field of lithium ion batteries, and provides a wet synthesis method of a high-nickel NCMA quaternary precursor. The method comprises synthesizing solid tiny crystal nuclei of the NCMA quaternary precursor in a first reactor, and prompting the solid tiny crystal nuclei of the quaternary precursor to grow to a certain particle size in a second reactor, wherein in the first reactor, an upper feeding mode is used to continuously produce the solid tiny crystal nuclei of the NCMA quaternary precursor; and in the second reactor, an upper-and-lower dual feeding mode is used to prompt the continuous growth of the solid tiny crystal nuclei of the NCMA quaternary precursor. During a washing process, the NCMA quaternary precursor is washed with a mixed alkali solution of sodium carbonate and sodium hydroxide at certain concentration, so that Na can be reduced below 50 ppm and sulfur can be reduced below 800 ppm. The NCMA quaternary precursor prepared by the present preparation method has a uniform distribution of particle size and a good degree of degree of sphericity. The addition of aluminum can enhance the boundary strength between primary particles, and improve the high energy density of the ternary precursor material while enhancing the stability and recirculating performance. |
| priorityDate |
2020-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |