http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2021039933-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bd0cdbc5c67cf4957ed83c89140748e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-505 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G53-00 |
| filingDate | 2020-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2fdfd03225cc29ff33ee7d89e9778ef7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a8eaf1647d9bc79e3e544950444da64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52229e8e46ae1874e376f85a1db93329 |
| publicationDate | 2021-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2021039933-A |
| titleOfInvention | Manufacturing method of positive electrode active material for lithium ion secondary battery |
| abstract | PROBLEM TO BE SOLVED: To provide a method for producing a positive electrode active material for a lithium ion secondary battery, which can produce a positive electrode active material capable of increasing the specific surface area without washing the calcined powder with water with high productivity. SOLUTION: This method is for producing a positive electrode active material for a lithium ion secondary battery containing a powder of a lithium nickel composite oxide composed of secondary particles in which a plurality of primary particles are aggregated, and at least a nickel compound and a lithium compound. The mixture containing the above is fired in an oxidizing atmosphere at a maximum temperature of 650 ° C. or higher and 1000 ° C. or lower to prepare a calcined powder of a lithium nickel composite oxide, and a calcining step of absorbing and then drying the calcined powder. The moisture absorption treatment comprises at least keeping the calcined powder in an environment of 50% or more relative humidity, exposing the calcined powder to water vapor, and spraying water on the calcined powder. A method for producing a positive electrode active material for a lithium ion secondary battery, which comprises one treatment. [Selection diagram] Fig. 1 |
| priorityDate | 2019-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 86.