Extrusion system for flow battery bipolar plate production and extrusion method thereof

A technology of flow battery and bipolar plate, which is applied in the parts of fuel cell, liquid injection device, injection device, etc., can solve the problems of poor use effect, affecting the internal resistance of the stack, contact internal resistance, etc., to improve the use of effect, improve sealing effect, ensure continuity effect

Active Publication Date: 2021-01-19
宁波市捷丰塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, the bipolar plate is an indispensable component of the battery or power storage system. When it is in use, it is in contact with the porous carbon electrode. It is mainly responsible for collecting and transmitting the current of the positive and negative electrodes. However, due to the characteristics of the extrusion process, the bipolar plate is mainly in the shape of a flat plate, so that the contact between the bipolar plate and the porous electrode , due to the existence of non-conductive materials on the surface, the contact internal resistance is high, so there is a defect of poor use effect

Method used

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  • Extrusion system for flow battery bipolar plate production and extrusion method thereof
  • Extrusion system for flow battery bipolar plate production and extrusion method thereof
  • Extrusion system for flow battery bipolar plate production and extrusion method thereof

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Effect test

Embodiment 1

[0045] Such as Figure 1-Figure 3 As shown, the present invention discloses an extrusion system for the production of flow battery bipolar plates, including an extrusion die 11 arranged in sequence and used to pull a bipolar plate 10, a thermal insulation conveying roller 12, and a shaping roller 13. In the present invention In a specific embodiment, it includes a spraying module 20 that is arranged between the heat-retaining conveying roller 12 and the shaping roller 13 and is used for spraying additives on the bipolar plate 10; wherein, the spraying module 20 includes at least one with a gas input When spraying, the gas inlet enters the air and sprays out to the spraying end to form a conveying air flow, and each additive is added to each auxiliary input end, and is controlled by electromagnetic The module 30 controls the opening or closing of each auxiliary agent output port to carry out the proportioning of the auxiliary agent and add it into the spray body 200, and mix an...

Embodiment 2

[0066] Embodiment 2 is different from Embodiment 1 in that (it should be noted that in this embodiment, Q means intake air, and P means air outlet / or exhaust):

[0067] like Figure 4-Figure 6 As shown, in the specific embodiment of the present invention, each sprinkler body is provided with an anti-blocking opening 50 communicating with the conveying chamber 200a; it also includes several anti-blocking openings 50 that can be inserted into and used to clean the conveying chamber 200a. The anti-blocking module 60 of the cavity 200a; the anti-blocking module 60 includes a plurality of dredging rods 600 corresponding to each anti-blocking port 50 and moving through the cylinder control and a cleaning part 601 installed on the free end of the dredging rod 600; The cleaning part 601 includes a first cleaning part 6011 installed on one end of the dredging rod 600 and having a diameter of L1, and a second cleaning part 6012 installed on the side of the first cleaning part 6011 away ...

Embodiment 3

[0082] Embodiment 3 is different from Embodiment 1 in that it is worth noting that this embodiment is a modification of Embodiment 1, which cannot be shared with Embodiment 2, as follows:

[0083] like Figure 7-Figure 9As shown, this embodiment discloses an extrusion system for the production of bipolar plates of a liquid flow battery, including an extrusion die 11 arranged in sequence and used to pull a bipolar plate 10, a thermal insulation conveying roller 12, and a shaping roller 13. In the present invention In a specific embodiment, it includes a spraying module 20 that is arranged between the heat-retaining conveying roller 12 and the shaping roller 13 and is used for spraying additives on the bipolar plate 10; wherein, the spraying module 20 includes at least one with a gas input One end, two auxiliary agent input ends, and one spraying body at the spraying end; when spraying, the gas input end enters the air and sprays out to the spraying end to form a conveying air f...

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Abstract

The invention relates to an extrusion system for flow battery bipolar plate production and an extrusion method thereof. The extrusion system comprises an extruding die used for pulling a bipolar plate, a heat preserving and conveying roller and a shaping roller, wherein the extruding die, the heat preserving and conveying roller and the shaping roller are sequentially arranged. The extrusion system is characterized by comprising a spraying module which is arranged between the heat preserving and conveying roller and the shaping roller and used for spraying addition agents to the bipolar plate.The spraying module at least comprises a spraying body which is provided with an air input end, two addition agent input ends and a spraying end. In the spraying process, air enters from the air input end and is sprayed out from the spraying end to form conveying airflow, all the addition agents are matched discontinuously through the both addition agent input ends, added into the spraying body,and mixed under the effect of the conveying airflow, and move to the spraying end until the addition agents are sprayed from the spraying end to the bipolar plate. The system has the beneficial effects that a conductive layer can be formed on the surface of the bipolar plate, the use effect of the bipolar plate is improved, and accurate proportioning can be realized, so that the forming quality ofthe conductive layer of the bipolar plate is ensured.

Description

technical field [0001] The invention relates to the field of bipolar plate production, in particular to an extrusion system and an extrusion method for the production of liquid flow battery bipolar plates. Background technique [0002] With the development of technology, more and more attention has been paid to wind and light new energy power generation technology, and because it is difficult to store electricity when wind and light energy are generating power, it is necessary to use various batteries and power storage systems to complete the power generation. reserve of electric energy; [0003] Among them, the bipolar plate is an indispensable component of the battery or power storage system. When it is in use, it is in contact with the porous carbon electrode. It is mainly responsible for collecting and transmitting the current of the positive and negative electrodes. However, due to the characteristics of the extrusion process, the bipolar plate is mainly in the shape o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B13/02B05B7/04B05B7/12B05B15/52H01M8/0202
CPCB05B7/0416B05B7/12B05B13/0221B05B15/52H01M8/0202Y02E60/50
Inventor 黄俊杰
Owner 宁波市捷丰塑业有限公司
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