http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103303907-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5cedae1e4103c4e3719a5e9c94c2b510 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-587 |
| filingDate | 2013-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b006008d24e2e889b7f21ce62f364e82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc7fb8958e21f2ed81c0a84902fcf4a0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7afbe526c28708b01a62d69441e189e |
| publicationDate | 2015-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103303907-B |
| titleOfInvention | Surface modification method for spherical graphite negative material |
| abstract | The invention discloses a surface modification method for a spherical graphite negative material. The method comprises the following steps of: carrying out surface oxidation modification treatment on the spherical graphite negative material by using oxidizing gas, and eliminating the defect structure on the surface of spherical graphite by using a gas phase, namely, conducting steps of preheating, drying, gas phase oxidation, ultrasonic treatment, filtering separation, finished product drying, and the like. The method is simple and convenient to operate, the production efficiency is high, the utilization rate of a spherical graphite material is sufficiently improved, and the oxidation uniformity of the surface of the spherical graphite is improved; by utilizing the oxidation method, the surface defect on the surface of the spherical graphite is eliminated, the compatibility of the graphite and electrolyte is improved, the cycle life is prolonged, nano pores are obtained, and the reversible capacity of the negative material is improved. The surface modification method can be popularized to various gas phase modified graphite materials, and requirements of industrial production are met. |
| priorityDate | 2013-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.