Three-in-one combined electrode for all-vanadium redox flow battery and preparation method for three-in-one combined electrode
A technology for all-vanadium redox flow batteries and composite electrodes, which is applied to battery electrodes, circuits, electrical components, etc., can solve problems such as poor mechanical properties, unfavorable assembly and sealing of all-vanadium redox flow batteries, and poor conductivity of composite conductive electrodes. Achieve the effects of good mechanical properties, compact structure and high electrical conductivity
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[0035] Such as Figure 1 to Figure 2 A three-in-one composite electrode for an all-vanadium redox flow battery and a preparation method thereof according to the embodiment of the present invention shown in the embodiment include:
[0036] Step 1. Development of conductive plastic board:
[0037] Step 1.1, plastic board molding
[0038] Weigh 5-50% of the plastic particles by mass into the mold, put the mold into the hot press, and heat-melt it at 50-300°C, 5-15MPa, and obtain a uniform plastic plate;
[0039] The following plastic particles are one or more of PP plastic particles, PVC plastic particles, PE plastic particles or PS plastic particles, and a mixture of plastic particles formed by mixing one or more plastic particles in any ratio.
[0040] Step 1.2, forming conductive plastic plate
[0041] Cover the pre-treated conductive material with the molded plastic board and adhesive, put it into the mold and put it in a hot press at 50~300℃, 2~30MPa, and press it through the hot pres...
Embodiment 1
[0048] Step 1. Development of conductive plastic board:
[0049] Step 1.1, plastic board molding
[0050] Weigh 5% by mass of PE and PVC plastic particles into a mold, put the mold in a hot press, and heat-melt the mold at 200° C., 5 MPa, to obtain a uniform plastic plate.
[0051] Step 1.2, forming conductive plastic plate
[0052] Coat the formed plastic board and epoxy resin evenly on the conductive material carbon felt and conductive carbon black, the carbon felt size is 100×150×5mm, put into the mold and put into the hot press, 200℃, 5MPa, through hot pressing The plastic board is evenly injected into the fiber gap of the graphite felt by machine pressing, and the conductive plastic board is obtained by hot pressing.
[0053] Step 2. Preparation of three-in-one composite electrode
[0054] Such as image 3 As shown in the figure, the carbon felt is placed on the upper and lower parts of the conductive plastic plate, put into the mold and placed in the hot press, and pressed into on...
Embodiment 2
[0056] Step 1. Development of conductive plastic board:
[0057] Step 1.1, plastic board molding
[0058] Weigh 30% by mass of PP, PE, and PVC plastic particles into the mold, put the mold into the hot press, and heat-melt at 150°C and 10MPa to obtain a uniform plastic plate;
[0059] Step 1.2, forming conductive plastic plate
[0060] Cover the formed plastic board and thermoplastic acrylic resin on two conductive material graphite felts, the size of the graphite felt is 230×350×3mm in the middle, put into the mold and put into the hot press, 150℃, 10MPa, press the hot press , The plastic board is evenly injected into the fiber gaps of the upper and lower graphite felts, and the conductive plastic board is obtained by hot pressing.
[0061] Step 2. Preparation of three-in-one composite electrode
[0062] Such as Figure 4 As shown in the figure, the graphite felt is placed on the upper and lower parts of the conductive plastic plate, put into the mold and placed in the hot press, and p...
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Abstract
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