Preparation method of super capacitor based on single-wall carbon nanotube/tungsten oxide nanowire composite film electrodes

• Main Authors: HOU CHENGYI, LIU SHIYI, LI YAOGANG, ZHANG QINGHONG, LI KERUI, WANG HONGZHI
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2017
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention relates to a preparation method of a super capacitor based on single-wall carbon nanotube/tungsten oxide nanowire composite film electrodes. The preparation method includes: preparing the anhydrous ethanol precursor solution of tungsten salt and polyvinyl pyrrolidone under air atmosphere, performing reaction at 160-200 DEG C for 10-20 hours, cooling, centrifuging, washing, and dispersing to obtain W18O49 nanowire dispersing liquid; mixing the nanowire dispersing liquid with a single-wall carbon nanotube, performing suction filtration, washing, and drying to obtain the single-wall carbon nanotube/tungsten oxide nanowire composite film electrodes; using the composite film electrode as the cathode, using the single-wall carbon nanotube/polyaniline film as the anode, using an aluminum salt solution as electrolyte, and assembling to obtain the super capacitor. The preparation method has the advantages that compositing of electric double layer electrode materials and pseudocapacitor electrode material