http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111029578-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2004-027 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-587 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-587 |
| filingDate | 2019-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111029578-B |
| titleOfInvention | Modified hard carbon negative electrode material and preparation method thereof |
| abstract | The invention discloses a preparation method of a modified hard carbon negative electrode material, which comprises the following steps: dissolving a phenol monomer in deionized water, adjusting the pH to be alkaline, and marking as A solution; adding aldehyde monomers in a certain proportion into the solution A, uniformly stirring to obtain a solution B, and carrying out polycondensation reaction to obtain phenolic resin gel; putting the phenolic resin gel into a heating reaction kettle, carrying out a crosslinking aging reaction at the temperature of 50-80 ℃, cooling to room temperature, and carrying out vacuum drying and coarse crushing treatment to obtain phenolic resin; carrying out pre-carbonization treatment on phenolic resin at 500-800 ℃ under the protection of inert gas, cooling to room temperature, and crushing to obtain a hard carbon precursor; loading the active lithiated compound into a hard carbon precursor, carbonizing at 1000-1350 ℃ under the protection of inert gas, cooling to room temperature, and sieving to obtain the modified hard carbon. The modified hard carbon negative electrode material prepared by the preparation method has high reversible specific capacity and high charge-discharge efficiency. |
| priorityDate | 2019-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.