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Preparing-molding method and performance testing method of zinc-bromine flow battery polar plate

A technology of zinc-bromine flow battery and forming method, which is applied in the direction of measuring devices, instruments, etc., can solve the problems of zinc-bromine battery plate conductivity, electrolyte corrosion resistance and swelling properties are not ideal, so as to facilitate electronic conduction , defect reduction, and the effect of reducing the chance of corroding the base material

Active Publication Date: 2014-06-18
江苏恒安储能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the mainstream conductive additives are mostly: conductive carbon black, conductive graphite, carbon fiber and conductive polymer, etc., but only adding these conductive additives makes the conductivity of the zinc-bromine battery plate made of the electrode main material (PE conductive plastic) The properties of resistance to electrolyte corrosion and swelling are still not ideal and cannot meet people's needs

Method used

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  • Preparing-molding method and performance testing method of zinc-bromine flow battery polar plate
  • Preparing-molding method and performance testing method of zinc-bromine flow battery polar plate
  • Preparing-molding method and performance testing method of zinc-bromine flow battery polar plate

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Embodiment 1

[0029] Embodiment 1 of the present invention: the preparation molding method of zinc-bromine flow battery pole plate, comprises the following steps:

[0030] S1, calculated in parts by weight, take 5 parts of multi-walled carbon nanotubes, 8 parts of conductive carbon black and 6 parts of graphite for compounding and clockwise stirring, the stirring time is 30 minutes, wherein the morphology of carbon nanotubes under a scanning electron microscope The schematic diagram and the schematic diagram of the morphology under the transmission electron microscope are shown in figure 1 and figure 2 shown;

[0031] S2, calculated in parts by weight, take 80 parts of PE raw materials and add them to the above-mentioned mixture for secondary stirring. The stirring time is 30 minutes, wherein the PE raw materials can be a mixture of LLDPE and HDPE, and the content ratio of the two is 1: 2; the stirring is conventional stirring, which can be clockwise stirring, wherein the schematic diagr...

Embodiment 2

[0034] Embodiment 2 of the present invention: the preparation molding method of zinc-bromine flow battery pole plate, comprises the following steps:

[0035] S1, calculated in parts by weight, take 8 parts of multi-walled carbon nanotubes, 5 parts of conductive carbon black and 5 parts of graphite for compounding and conventional stirring. The stirring time is 30 minutes. The schematic diagram of the morphology of carbon nanotubes under a scanning electron microscope and the schematic morphology under the transmission electron microscope as figure 1 and figure 2 shown;

[0036] S2, calculated in parts by weight, take 70 parts of PE raw materials and add them to the above-mentioned mixture for secondary stirring, the stirring time is 30 minutes, wherein the PE raw materials can be a mixture of LLDPE and HDPE, and the content ratio of the two is 1: The stirring described in 2 is conventional stirring, which can be clockwise stirring, wherein the schematic diagram of the morph...

Embodiment 3

[0039] Embodiment 3 of the present invention: a method for preparing and forming a zinc-bromine flow battery pole plate, comprising the following steps:

[0040] S1, calculated by weight, take 4 parts of multi-walled carbon nanotubes, 10 parts of conductive carbon black and 10 parts of graphite for compounding and conventional stirring. The stirring time is 30 minutes. The schematic diagram of the morphology of carbon nanotubes under a scanning electron microscope and the schematic morphology under the transmission electron microscope as figure 1 and figure 2 shown;

[0041] S2, calculated in parts by weight, take 76 parts of PE raw materials and add them to the above-mentioned mixture for secondary stirring, the stirring time is 30 minutes, wherein the PE raw materials can be a mixture of LLDPE and HDPE, and the content ratio of the two is 1: The stirring described in 2 is conventional stirring, which can be clockwise stirring, wherein the schematic diagram of the morpholo...

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Abstract

The invention discloses a preparing-molding method and a performance testing method of a zinc-bromine flow battery polar plate. The preparing-molding method comprises the following steps of: 1) taking 4-8 parts of multi-walled carbon nanotubes by weight, 5-10 parts of conductive carbon black by weight and 5-10 parts of graphite, mixing and agitating to obtain mixture, wherein the agitating time is 30 minutes; 2) taking 70-80 parts of polyethylene (PE) raw materials by weight, adding the PE raw materials into the mixture and agitating for a second time to obtain mixture, wherein the agitating time is 30 minutes; 3) using a double-screw extruder to extrude the mixture into sheets through an extruding head, wherein the temperature of fusant during extrusion is 210-215 DEG C, the extruding pressure is 15-20Mpa and the retention time of the fusant is 1-3min. By adding the novel conductive additives, i.e. the carbon nanotubes during the preparation of PE conductive plastics, the conductivity, the electrolyte corrosion resistance and the anti-swelling performance of the prepared polar plate of a zinc-bromine flow battery are obviously improved.

Description

technical field [0001] The invention relates to a preparation molding and performance testing method of a zinc-bromine liquid flow battery pole plate, belonging to the technical field of zinc-bromine battery. Background technique [0002] At present, the storage batteries used in independent energy systems such as distributed energy systems are usually lead-acid batteries, and lead-acid batteries have fatal defects both in terms of their own performance and the environment, such as lead-acid batteries in hot climates The life in the environment is usually very short, especially when it is deeply discharged; at the same time, lead-acid batteries are also harmful to the environment because their main component is lead, which may cause serious environmental problems during production and disposal. [0003] Flow electrolyte batteries, such as zinc-bromine batteries and all-vanadium flow batteries, can overcome the shortcomings of the above-mentioned lead-acid batteries, and have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/00B29C47/92C08L23/06C08K13/04C08K7/00C08K3/04G01B21/32B29C48/92B29C48/40
CPCB29C48/92B29C2948/92704B29C2948/92514B29C2948/92895B29C48/40
Inventor 刘学军任忠山孟琳陆克
Owner 江苏恒安储能科技有限公司
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