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Conductive plastic composite electrode and manufacture method therefor

A conductive plastic and composite electrode technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of small reaction interface, acid corrosion resistance, etc.

Active Publication Date: 2012-07-11
SHENYANG AIRCRAFT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vanadium batteries usually use graphite plate electrodes. Although ink plate electrodes have strong conductivity, their reaction interface is small and not resistant to acid corrosion.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A method for making a conductive plastic composite electrode, comprising the following steps:

[0015] 1) Production of conductive plastic current collecting plate: 3 parts by weight of carbon black and 7 parts of high-density polyethylene are added to a high-speed mixer for thermal stirring, and hot-pressed with a mold to obtain a conductive plastic plate, and then copper The mesh is hot-pressed into the conductive plastic plate as a conductive plastic current collector;

[0016] 2) Production of adhesive: Mix epoxy resin and curing agent evenly at a volume ratio of 1:0.8 as the adhesive, weigh it, and then weigh 30% of the adhesive mass of carbon black , filled into the binder, stirred evenly, as a binder;

[0017] 3) Pretreatment of graphite felt: Cut the graphite felt into a size of 1×1c㎡, put it in a muffle furnace and heat it at 450°C for 2 hours, then cool it naturally, and take it out;

[0018] 4) Coat the surface of the conductive plastic collector plate obta...

Embodiment 2

[0020] A method for making a conductive plastic composite electrode, comprising the following steps:

[0021] 1) Production of conductive plastic current collector: 3.5 parts by weight of carbon black and expanded graphite, and 6.5 parts of high-density polyethylene are added to a high-speed mixer for thermal stirring, and hot-pressed with a mold to obtain a conductive plastic plate , and then thermally press the copper mesh into the conductive plastic plate as a conductive plastic current collector;

[0022] 2) Production of adhesive: Mix epoxy resin and curing agent evenly at a volume ratio of 1:0.8 as adhesive, weigh it, and then weigh 35% of the adhesive mass of carbon black , filled into the binder, stirred evenly, as a binder;

[0023] 3) Pretreatment of graphite felt: Cut the graphite felt into a size of 1×1c㎡, put it in a muffle furnace, heat it at 500°C for 2 hours, then cool it naturally, and take it out;

[0024] 4) Coat the surface of the conductive plastic colle...

Embodiment 3

[0026] A method for making a conductive plastic composite electrode, comprising the following steps:

[0027] 1) Production of conductive plastic current collecting plate: 4 parts by weight of carbon black and particulate graphite, and 6 parts of high-density polyethylene are added to a high-speed mixer for thermal stirring, and hot-pressed with a mold to obtain a conductive plastic plate , and then thermally press the copper mesh into the conductive plastic plate as a conductive plastic current collector;

[0028] 2) Production of adhesive: Mix epoxy resin and curing agent evenly at a volume ratio of 1:0.8 as the adhesive, weigh it, and then weigh 40% of the adhesive mass of carbon black , filled into the binder, stirred evenly, as a binder;

[0029] 3) Pretreatment of graphite felt: Cut the graphite felt into a size of 1×1c㎡, put it in a muffle furnace, heat it at 550°C for 2 hours, then cool it naturally, and take it out;

[0030] 4) Coat the surface of the conductive pla...

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PUM

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Abstract

The invention relates to a conductive plastic composite electrode which comprises a conductive plastic collector plate, conducting resin and graphite felts, wherein the conductive plastic collector plate is made of a conductive plastic board in which a copper mesh is arranged, and four rectangular graphite felts uniformly distributed longitudinally and transversely are bonded onto the side surface of the conductive plastic collector plate through the conducting resin. The invention further discloses a manufacture method which comprises the following steps: 1, manufacturing the conductive plastic collector plate; 2, manufacturing bonding agent; 3, pretreating graphite felts; 4, coating the bonding agent in the step 2 on the surface of the conductive plastic collector plate obtained in the step 1, and then bonding and producing the graphite felts produced in the step 3, that is, the conductive plastic composite electrode is obtained. The conductive plastic composite electrode is taken as the electrode of a vanadium battery since the bonded graphite felts can not enable the composite electrode to meet the requirements of vanadium battery electrodes, the reaction interface of the electrode is enlarged, and acid etching resistance is achieved.

Description

technical field [0001] The invention relates to a conductive plastic composite electrode and a manufacturing method thereof, which are used as an electrode of a vanadium battery. Background technique [0002] The vanadium battery belongs to the liquid flow battery. The electrode reaction of the battery is a liquid phase reaction, and the electrode itself participates in the reaction, which is the third type of electrode. The electrodes only conduct electricity and provide a reactive interface. Vanadium batteries usually use graphite plate electrodes. Although ink plate electrodes have strong conductivity, their reaction interface is small and not resistant to acid corrosion. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a conductive plastic composite electrode and a manufacturing method thereof. The interface of the electrode reaction is expanded, and it is resistant to acid corrosion. [0004] A conductive ...

Claims

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Application Information

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IPC IPC(8): H01M4/86H01M4/88
CPCY02E60/50
Inventor 乔永莲
Owner SHENYANG AIRCRAFT CORP
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