http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104505491-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-139 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-362 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-133 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-1393 |
| filingDate | 2014-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104505491-B |
| titleOfInvention | Modification method and composite material of natural graphite negative electrode material |
| abstract | The invention discloses a modification method of a natural graphite negative electrode material and a composite material. The technical problem to be solved is to improve the high-rate charge-discharge performance and low-temperature performance of the natural graphite negative electrode material, reduce the preparation cost, and reduce environmental pollution. The method of the invention includes electrolytic oxidation, intercalation of metal ions, reduction, pyrolysis, coating and sintering. In the natural graphite negative electrode composite material of the present invention, the graphite matrix is covered with a carbon coating layer, and metals and alloys in the nanoscale range are distributed between layers of the graphite matrix. Compared with the prior art, the present invention increases the electronic conductivity in the c-axis direction of natural graphite, improves the large-rate discharge performance and low-temperature performance of the negative electrode material, and the nano-metal and alloy have strong lithium storage capacity, which improves the discharge ratio of the material The capacity and the coating layer effectively improve the interlayer corrosion of the graphite by the electrolyte, prevent the graphite flakes from falling off, and improve the cycle performance of the material. The preparation method is simple, easy to control, low in cost, and easy for industrial production. |
| priorityDate | 2014-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 87.