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

A liquid flow battery and bipolar plate technology, which is applied to fuel cell components, liquid injection devices, collectors/separators, etc., can solve the problems of poor use effect, affecting the internal resistance of the stack, and high contact internal resistance. Achieve the effect of improving the use effect, improving the sealing effect and ensuring the continuity

Active Publication Date: 2021-02-19
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 and extrusion method for bipolar plate production of flow battery
  • Extrusion system and extrusion method for bipolar plate production of flow battery
  • Extrusion system and extrusion method for bipolar plate production of flow battery

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Embodiment 1

[0045]Such asFigure 1-Figure 3 As shown, the present invention discloses an extrusion system for the production of a flow battery bipolar plate, which includes an extrusion die 11 that is arranged in sequence and used to pull the bipolar plate 10, a heat preservation conveying roller 12, and a shaping roller 13. In a specific embodiment, it includes a spraying module 20 arranged between the heat preservation conveying roller 12 and the shaping roller 13 and used for spraying the auxiliary agent on the bipolar plate 10; wherein, the spraying module 20 includes at least one with a gas input When spraying, the gas input end enters the air and sprays out to the spraying end to form a conveying airflow. Each auxiliary agent is added to each auxiliary agent input end and controlled by electromagnetic The module 30 controls the opening or closing of each auxiliary agent output end to perform the auxiliary agent proportioning and adding to the spraying body, and mixing under the action of t...

Embodiment 2

[0066]The second embodiment is different from the first embodiment (it should be noted that: in this embodiment, Q indicates air intake, and P indicates air outlet / or exhaust):

[0067]Such asFigure 4-Figure 6 As shown, in the specific embodiment of the present invention, each spray body is provided with an anti-blocking port 50 communicating with the conveying cavity 200a; it also includes a plurality of anti-blocking ports 50 that can extend in from each anti-blocking port 50 and used to clean the conveying chamber. The anti-blocking module 60 of the cavity 200a; the anti-blocking module 60 includes a number of dredging rods 600 corresponding to each anti-blocking port 50 and moving by air cylinder control, and a cleaning part 601 installed at the free end of the dredging rod 600; The cleaning part 601 includes a first cleaning part 6011 with a diameter of L1 installed at one end of the dredging rod 600, and a second cleaning part 6012 with a diameter of L2 installed on the side of t...

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. The details are as follows:

[0083]Such asFigure 7-9 As shown, this embodiment discloses an extrusion system for the production of a flow battery bipolar plate, which includes an extrusion die 11 that is arranged in sequence and used to pull the bipolar plate 10, a heat preservation conveying roller 12, and a shaping roller 13, in the present invention In a specific embodiment, it includes a spraying module 20 arranged between the heat preservation conveying roller 12 and the shaping roller 13 and used for spraying the auxiliary agent on the bipolar plate 10; wherein, the spraying module 20 includes at least one with a gas input When spraying, the gas input end enters the air and sprays to the spraying end to form a conveying airflow. The additives are intermittently proportioned and added to the spraying end. Sp...

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Abstract

The invention relates to an extrusion system and an extrusion method for the production of a liquid flow battery bipolar plate, including an extrusion die, a thermal insulation conveying roller, and a shaping roller arranged in sequence for pulling the bipolar plate, and is characterized in that: A spraying module between the heat-retaining conveying roller and the shaping roller and used for spraying additives on the bipolar plate; wherein, the spraying module includes at least one gas input end, two auxiliary agent input ends and a spraying end Spraying body; when spraying, the gas input end enters the air and sprays out to the spraying end to form a conveying airflow, and each additive is intermittently proportioned through each auxiliary agent input end and added to the spraying body and mixed under the action of the conveying airflow. The spraying end moves until it is sprayed onto the bipolar plate from the spraying end; the beneficial effect of the present invention is that a conductive layer can be formed on the surface of the bipolar plate, the use effect of the bipolar plate can be improved, and the ratio can be precisely matched to ensure that the bipolar Forming quality of the conductive layer of the board.

Description

Technical field[0001]The invention relates to the field of bipolar plate production, in particular to an extrusion system for the production of a liquid flow battery bipolar plate and an extrusion method thereof.Background technique[0002]With the development of technology, more and more attention has been paid to the new energy power generation technology of wind and light lamps. As wind and light energy sources are difficult to store electricity when generating electricity, various batteries and power storage systems are required to complete the process. Electricity reserve;[0003]Among them, the bipolar plate, as an indispensable component of the battery or power storage system, is in contact with the porous carbon electrode during use, and is mainly responsible for collecting and transmitting the current of the positive and negative electrodes. The electrical conductivity directly affects the inside of the stack. However, due to the characteristics of the extrusion process, the bi...

Claims

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Application Information

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Patent Type & Authority Patents(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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