http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112366097-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-13 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01G11-86 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01G11-86 |
| filingDate | 2020-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112366097-B |
| titleOfInvention | Preparation method of all-carbon electrodes for improving the performance of graphene-based supercapacitors |
| abstract | The invention belongs to the technical field of electrochemical energy storage of carbon materials, and in particular relates to a preparation method of an all-carbon electrode capable of improving the specific capacitance and rate performance of graphene-based supercapacitors. The method comprises the following steps: preparing graphene oxide, and preparing a porous graphene oxide dispersion liquid through hydrogen peroxide etching; using the porous graphene oxide dispersion liquid as a basic solution, adding carbon nanotubes and carbon onions to prepare a three-dimensional dispersion liquid through ultrasonic dispersion. Mixing the solution; hydrothermally reacting the mixed solution to obtain a porous graphene hydrogel of composite carbon nanotubes and carbon onions; pressing the porous graphene hydrogel on the current collector. The specific capacitance and rate performance of the porous graphene oxide hydrogel electrode material of the composite carbon nanotube and carbon onion prepared by the invention are obviously improved. The introduction of the carbon nanotube can build a conductive network and reduce the internal resistance of the electrode material. The carbon onion can reduce the stacking between graphene sheets and greatly improve the rate performance of the electrode material. |
| priorityDate | 2020-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.