http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105720258-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-38 |
| filingDate | 2014-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105720258-B |
| titleOfInvention | Lithium ion battery negative material and its preparation method and application, lithium ion battery |
| abstract | The invention discloses a kind of lithium ion battery negative materials and its preparation method and application, lithium ion battery.Primary particle A should be spray-dried to obtain the preparation method comprises the following steps: 1) be uniformly mixed silicon powder slurry and binder；2) the primary particle A is added in the synthesis process of asphaltic resin, obtains the asphaltic resin containing silicon powder, then is sintered, is crushed to obtain second particle B；The additive amount of the primary particle A is 10-30%, and the percentage is the mass percent for accounting for the asphaltic resin and the primary particle A；3) the second particle B is uniformly mixed with graphite, then is surface modified with pitch, finished particle C three times is obtained after roasting.Preparation method simple process of the invention, cost is relatively low, suitable for industrialized production, the lithium ion battery negative material tap density provided is high, and covered effect is good, silicon and carbon can be uniformly dispersed, for the first time gram volume and coulombic efficiency and circulation after capacity retention ratio be also improved largely. |
| priorityDate | 2014-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.