Mo0.5W0.5S2 nano-tile/graphene electrochemical sodium storage composite electrode and preparation method thereof

A composite electrode, ene electrochemical technology, applied in the direction of battery electrodes, nanotechnology, nanotechnology, etc., to achieve the effect of strong hydrophobicity and strong electrostatic interaction

Inactive Publication Date: 2014-10-08
ZHEJIANG UNIV
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, so far, with Mo 0.5 W 0.5 S 2 Nanowatt / graphene composite nanomaterials as electrochemically active materials for electrochemical sodium storage composite electrodes and their preparation have not been reported yet

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mo0.5W0.5S2 nano-tile/graphene electrochemical sodium storage composite electrode and preparation method thereof
  • Mo0.5W0.5S2 nano-tile/graphene electrochemical sodium storage composite electrode and preparation method thereof
  • Mo0.5W0.5S2 nano-tile/graphene electrochemical sodium storage composite electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Ultrasonically disperse 2.5 mmol graphene oxide in 60 mL deionized water, then add 0.8 mmol gemini surfactant N-dodecylpropylenediamine bisammonium bromide, stir well, and then add 0.76 g (6.25 mmol) L-cysteine, 0.625 mmol ammonium thiomolybdate and 0.625 mmol ammonium thiotungstate, and kept stirring to make L-cysteine, ammonium thiomolybdate and ammonium thiotungstate completely Dissolve and adjust the volume to about 80 mL with deionized water;

[0025] 2) Transfer the obtained mixed solution into a 100 mL hydrothermal reaction kettle, put the reaction kettle into a constant temperature oven, and after hydrothermal reaction at 230 °C for 24 h, let it cool down to room temperature naturally, and collect the solid by centrifugation The product was fully washed with deionized water, dried in vacuum at 100 °C, and the obtained solid product was heat-treated at 800 °C for 2 h in a nitrogen / hydrogen mixed atmosphere. The volume fraction of hydrogen in the mixed gas was ...

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

No PUM Login to view more

Abstract

The invention discloses a Mo0.5W0.5S2 nano-tile/graphene electrochemical sodium storage composite electrode and a preparation method thereof, wherein an electrochemical sodium storage active substance is a Mo0.5W0.5S2 nano-tile and graphene composite nanomaterial; the ratio of the amount of substance of Mo0.5W0.5S2 nano-tile to graphene in the composite nanomaterial is 1: 2; the Mo0.5W0.5S2 nano-tile has few layers and averagely has 3-5 layers; the composite electrode comprises the following components by weight percent: 80% of the Mo0.5W0.5S2 nano-tile/graphene composite nanomaterial, 10% of conductive acetylene black, 5% of carboxymethyl cellulose and 5% of polyvinylidene fluoride. The preparation method comprises the steps of firstly, preparing the Mo0.5W0.5S2 nano-tile/graphene composite nanomaterial, mixing the obtained composite nanomaterial with the acetylene black and the polyvinylidene fluoride to prepare paste, coating a copper foil with the paste, and rolling to obtain the electrochemical sodium storage composite electrode. The electrochemical sodium storage composite electrode has the high electrochemical sodium storage capacity.

Description

technical field [0001] The present invention relates to electrochemical sodium storage electrode and preparation method thereof, relate in particular to using Mo 0.5 W 0.5 S 2 The invention relates to a preparation method for preparing an electrochemical sodium storage composite electrode by a nanowatt / graphene composite nanomaterial, which belongs to the technical fields of inorganic composite nanomaterials and new energy. Background technique [0002] With the development of modern mobile communications, new energy vehicles and smart grids, new chemical power sources play an increasingly important role in modern society. Traditional secondary batteries, such as lead-acid batteries, have limited applications due to the harmful metal element Pb they contain. Lithium-ion batteries have excellent properties such as high specific energy, no memory effect, and environmental friendliness, and have been widely used in portable mobile appliances such as mobile phones and noteboo...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/136H01M4/1397B82Y30/00B82Y40/00
CPCY02E60/122B82Y30/00B82Y40/00H01M4/136H01M4/1397H01M4/366H01M4/5815H01M4/625Y02E60/10
Inventor 陈卫祥马琳黄国创王臻叶剑波
Owner ZHEJIANG 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
PatSnap group products

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