http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113880062-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f37ebf28d190ecb2714e7af54bb16dc6 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-03 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-375 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-052 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-5825 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-052 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-58 |
| filingDate | 2021-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_840f5f40a325b5876cd74187e67525d7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0fe53d9604b4d2446449698ff9d75c7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2d34734b0755812672f27022c67b023 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a402ca8edbf118f1fa76ff17ab217251 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af901cabf3d2fb5a325231cb78834018 |
| publicationDate | 2022-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113880062-A |
| titleOfInvention | Preparation method and application of iron phosphate |
| abstract | The invention discloses a preparation method of iron phosphate, which comprises the following steps: at normal temperature, injecting an iron raw material and a phosphoric acid raw material into a premixing unit of a reaction kettle in a continuous parallel flow and top feeding mode to obtain premixed raw materials; feeding the premixed raw materials into the bottom of a reaction kettle, carrying out precipitation reaction on the bottom of the reaction kettle, controlling the pH value of the reaction process to be 0.5-3, controlling the reaction temperature to be 40-75 ℃, reacting for 1-8 h, then heating to 80-99 ℃, and continuing to react for 0.5-8 h to obtain mixed slurry; and filtering the mixed slurry to obtain filter residues which are iron phosphate precursors, and washing, drying and calcining the obtained iron phosphate precursors to obtain the iron phosphate. According to the invention, the pre-mixing unit in the reaction kettle enables the iron salt and the phosphate to react more uniformly when being mixed, the local concentration is reduced, the uniformity of the particle size of the iron phosphate particles is improved, the stability of the product between batches is increased, and the electrochemical performance of the lithium iron phosphate anode material is favorably improved. |
| priorityDate | 2021-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 60.