http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109354075-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-11 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G51-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-525 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G51-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 |
| filingDate | 2018-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109354075-B |
| titleOfInvention | Preparation method of small-particle-size uniformly-aluminum-doped spherical cobaltosic oxide |
| abstract | The invention relates to a preparation method of a precursor of a lithium ion battery anode material, in particular to a preparation method of small-particle-size uniform aluminum-doped spherical cobaltosic oxide, which comprises the following steps: 1. adding soluble aluminum salt and EDTA disodium into a cobalt salt solution to prepare a cobalt-aluminum mixed salt complex solution; 2. injecting pure water into the reaction kettle as a base solution, blowing air, adding a small amount of sodium hydroxide solution to adjust the pH value, and heating; 3. adding the cobalt-aluminum mixed salt complex solution and the sodium hydroxide solution into a reaction kettle simultaneously under stirring to perform precipitation reaction; 4. sampling every 2h to measure the granularity, and ensuring that the reaction time is more than 40h to reach 2-5 mu m; filtering and washing the material after the granularity reaches a target value; 5. carrying out segmented thermal decomposition on the washed aluminum-doped hydroxy cobalt to finally obtain small-particle-size aluminum-doped spherical cobaltosic oxide with uniformly distributed aluminum from inside to outside, wherein the shape of the aluminum-doped spherical cobaltosic oxide is compact and non-adhesive spherical particles, and the tap density is 2.0-2.7 g/cm 3 The laser particle size distribution is narrow. |
| priorityDate | 2018-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.