Flexible molybdenum disulfide/activated carbon cloth composite material, preparation method thereof, and application of composite material in flexible supercapacitor
A composite material and flexible technology, which is used in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., can solve the problems of unsatisfactory electrode area capacitance, poor device rate performance, and weak binding force, etc., and achieves good flexibility and excellent performance. Lower cost than capacitors
Pending Publication Date: 2021-11-19
HUNAN CITY UNIV
View PDF5 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, on the one hand, due to the low capacitance of the CC itself (1-2F / g), and its own weight seriously affects the capacitance of the entire device, the area capacitance of the prepared electrode is still not ideal.
On the other hand, the molybdenum disulfide grown on the carbon cloth is easy to fall off due to the weak binding force, especially when the device is bent and twisted, it is easy to peel off, resulting in poor rate performance and poor flexibility of the device.
Therefore, how to improve the capacitance of the flexible matrix carbon cloth and at the same time improve the interaction force between the carbon cloth and the molybdenum disulfide, so that the molybdenum disulfide can grow uniformly and stably on the carbon cloth, so as to obtain a high-performance molybdenum disulfide-based flexible superstructure. Capacitors still have challenges
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0032] Activation of carbon cloth (CC): Treat the carbon cloth with mixed acid (concentrated sulfuric acid and concentrated nitric acid) oxidation method, first immerse the carbon cloth in concentrated H with a volume ratio of 2:1 2 SO 4 and concentrated HNO 3 solution mixture, add 3gKMnO 4 , reacted at 35°C for 3 hours, then added 100 mL of distilled water, and then added H to the mixture 2 o 2 solution until the solution is clear, and the activated carbon cloth (ACC) is obtained.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM
Property | Measurement | Unit |
---|---|---|
size | aaaaa | aaaaa |
Login to view more
Abstract
The invention discloses a flexible molybdenum disulfide/activated carbon cloth composite material, a preparation method thereof, and an application of the composite material in a flexible supercapacitor. Carbon cloth is oxidized through a Hummer's method to obtain oxidized carbon cloth, the oxidized carbon cloth is immersed in a mixed solution containing a molybdenum source and a sulfur source, and a hydrothermal reaction is carried out to obtain the flexible molybdenum disulfide/ACC composite material. The composite material has good flexibility and conductivity, and can be directly assembled into a sandwich-type flexible supercapacitor without an additional current collector, and the prepared MoS2/ACC-based supercapacitor has ultrahigh area capacitance, considerable energy density and cycling stability, and in addition, the composite material has good application prospects. The super capacitor also shows good flexibility and relatively good low temperature resistance.
Description
technical field [0001] The invention relates to a supercapacitor electrode material, in particular to a flexible MoS 2 The / ACC composite material also relates to its preparation method and its application in flexible supercapacitors, belonging to the technical field of supercapacitors. Background technique [0002] With the shortage of fossil energy and the increasingly prominent problem of environmental pollution, in order to find new sustainable energy sources and develop advanced energy storage materials, more and more people have started research on new energy storage devices—supercapacitors. Supercapacitor has the characteristics of high power density, long cycle life, wide operating temperature limit, high charge and discharge efficiency, and no pollution to the environment. It is a recognized new type of green energy storage device. On the other hand, with the development of science and technology, people's increasing demand for portable electronic products has prom...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Application Information
Patent Timeline
Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/34H01G11/86H01G11/30H01G11/24
CPCH01G11/34H01G11/86H01G11/30H01G11/24Y02E60/13
Inventor 吴丹贺国文肖谷清
Owner HUNAN CITY UNIV
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap