Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

All-vanadium redox flow battery composite terminal electrode and preparation method thereof

An all-vanadium flow battery and terminal electrode technology, applied in battery electrodes, fuel cells, regenerative fuel cells, etc., can solve the problems of easy defects, complicated assembly, and large contact resistance, so as to reduce the risk of assembly sealing and reduce the surface Contact resistance, the effect of improving battery voltage efficiency

Active Publication Date: 2019-12-20
江苏恒安储能科技有限公司
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the terminal electrode structure in the prior art is a split structure, that is, the carbon felt, the pole plate and the copper electrode are physically pressed together to achieve mutual contact and conduction. The contact resistance of this structure is extremely large, and the assembly is complicated. Prone to defects, while assembled with gaps, prone to liquid leakage

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
  • All-vanadium redox flow battery composite terminal electrode and preparation method thereof
  • All-vanadium redox flow battery composite terminal electrode and preparation method thereof
  • All-vanadium redox flow battery composite terminal electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 of the present invention: the preparation method of the composite terminal electrode of the all-vanadium redox flow battery comprises the following steps:

[0042] Step 1, cutting and preparing the terminal electrode assembly, cutting the size of the outer frame of the insulating plate according to the size of the inner cavity of the female mold, cutting the size of the copper electrode, the size of the electrode and the size of the carbon felt according to the size of the cavity in the insulating outer frame Size, according to the size of the lug fixing hole on the female mold, cut the size of the tab at the upper end of the copper electrode piece. The size of the inner cavity of the female mold is determined according to the model of the actual production terminal electrode. The thickness of the electrode sheet is 1.0mm, and the thickness of the outer frame of the insulating plate is 1.0mm.

[0043] Step 2, the terminal electrode blank is hot-pressed, whi...

Embodiment 2

[0051] Embodiment 2 of the present invention: the preparation method of the composite terminal electrode of the all-vanadium redox flow battery comprises the following steps:

[0052] Step 1, cutting and preparing the terminal electrode assembly, cutting the size of the outer frame of the insulating plate according to the size of the inner cavity of the female mold, cutting the size of the copper electrode, the size of the electrode and the size of the carbon felt according to the size of the cavity in the insulating outer frame Size, according to the size of the lug fixing hole on the female mold, cut the size of the tab at the upper end of the copper electrode piece. The size of the inner cavity of the female mold is determined according to the model of the actual production terminal electrode. The thickness of the electrode sheet is 1.25mm, and the thickness of the outer frame of the insulating plate is 1.25mm.

[0053] Step 2, the terminal electrode blank is hot-pressed, w...

Embodiment 3

[0061] Embodiment 3 of the present invention: the preparation method of the composite terminal electrode of the all-vanadium redox flow battery comprises the following steps:

[0062] Step 1, cutting and preparing the terminal electrode assembly, cutting the size of the outer frame of the insulating plate according to the size of the inner cavity of the female mold, cutting the size of the copper electrode, the size of the electrode and the size of the carbon felt according to the size of the cavity in the insulating outer frame Size, according to the size of the lug fixing hole on the female mold, cut the size of the tab at the upper end of the copper electrode piece. The size of the inner cavity of the female mold is determined according to the model of the actual production terminal electrode. The thickness of the electrode sheet is 1.5mm, and the thickness of the insulating plate outer frame is 1.5mm.

[0063] Step 2, the terminal electrode blank is hot-pressed, which is t...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an all-vanadium redox flow battery composite terminal electrode and a preparation method thereof. The composite terminal electrode comprises a carbon felt, an electrode slice,an insulating plate outer frame slice and a copper electrode slice. A hollow cavity which is through front and back is formed in the middle of the insulating plate outer frame slice; the electrode slice is fused in the hollow cavity of the insulating plate outer frame slice; the electrode slice, the insulating plate outer frame slice, the copper electrode slice, the insulating plate outer frame slice and the electrode slice are sequentially stacked in an inner cavity of the die; a hot pressing die is used for preparing a terminal electrode blank; and the carbon felt is welded on the surface ofthe electrode slice on the terminal electrode blank through a resistance welding machine. The preparation method comprises the following steps of: cutting and preparing the terminal electrode blank assembly, carrying out hot press molding on the terminal electrode blank, machining a terminal electrode blank, and welding the carbon felt layer to prepare the composite terminal electrode. The surface contact resistance is effectively reduced, the voltage efficiency of the flow battery is improved, the assembly process is simplified, and the assembly sealing risk is reduced.

Description

technical field [0001] The invention relates to the technical field of manufacturing an all-vanadium redox flow battery, in particular to a composite terminal electrode of an all-vanadium redox flow battery and a preparation method thereof. Background technique [0002] Flow energy storage battery is a low-cost, high-efficiency, and environment-friendly flow energy storage battery, which has the advantages of high energy density and current efficiency, simple and easy-to-operate device, long service life, and low cost. At present, the mainstream flow batteries mainly include all-vanadium flow batteries and zinc-bromine flow batteries, which are mainly used in power grid peak shaving, renewable energy power generation such as wind energy and solar energy, and electric vehicles. Among them, the all-vanadium redox flow battery is a relatively mature type of market expansion. [0003] The bipolar plate is one of the key components of the flow battery, which plays the role of co...

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): H01M4/86H01M4/88H01M8/18
CPCH01M4/8657H01M4/88H01M4/8875H01M4/8896H01M8/188Y02E60/50
Inventor 任忠山李森森贾东冉刘学军孟琳陆克
Owner 江苏恒安储能科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com