Assembly of electrode frame and diaphragm of flow battery and application

A liquid flow battery and electrode frame technology, which is applied to fuel cell parts, fuel cells, electrical components, etc., can solve problems such as battery leakage, and achieve the effects of improving reliability, broadening application methods, and reducing volume

Pending Publication Date: 2022-05-13
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual process, battery leakage often exists, so only by reducing the links that need to be sealed can the problem of battery leakage be directly and effectively solved

Method used

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  • Assembly of electrode frame and diaphragm of flow battery and application
  • Assembly of electrode frame and diaphragm of flow battery and application
  • Assembly of electrode frame and diaphragm of flow battery and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Select a square polyethylene flat plate as the base material of the ring-shaped electrode frame 1 with a through hole in the middle, which is 600 mm long, 400 mm wide, and 8 mm thick; flow channels 3 are respectively arranged on the two side surfaces of the electrode frame 1 (respectively) As the electrolyte inlet and outlet flow channels, the electrolyte inlet flow channel and outlet flow channel on each side surface of the electrode frame are set on the opposite surface of the through hole on each side surface of the electrode frame); the electrode frame through hole (length 500mm, width 300mm) There is an annular platform 2 in the middle (the central axis of geometric symmetry with the through hole). The thickness of the annular platform 2 is 1 mm and the electrode frame 1 is evenly divided into two parts. Each part has a thickness of 3.5 mm and is respectively Place the positive and negative terminals of the battery. as attached figure 1 shown in the attached figu...

Embodiment 2

[0026] Select a square polyethylene flat plate as the base material of the ring-shaped electrode frame 1 with a through hole in the middle, which is 600 mm long, 400 mm wide, and 8 mm thick; flow channels 3 are respectively arranged on the two side surfaces of the electrode frame 1 (respectively) As the electrolyte inlet and outlet flow channels, the electrolyte inlet flow channel and outlet flow channel on each side surface of the electrode frame are set on the opposite surface of the through hole on each side surface of the electrode frame); the electrode frame through hole (length 500mm, width 300mm) There is an annular platform 2 in the middle (the central axis of geometric symmetry with the through hole). The thickness of the annular platform 2 is 1 mm and the electrode frame 1 is evenly divided into two parts. Each part has a thickness of 3.5 mm and is respectively Place the positive and negative terminals of the battery. as attached figure 1 shown in the attached figu...

Embodiment 3

[0028] Choose a square polyethylene flat plate as the base material of the ring-shaped electrode frame 4 with a through hole in the middle, which is 600 mm long, 400 mm wide, and 8 mm thick; flow channels 6 are respectively arranged on the two side surfaces of the electrode frame 4 (respectively) As the electrolyte inlet and outlet flow channels, the electrolyte inlet flow channel and outlet flow channel on each side surface of the electrode frame are set on the opposite surface of the through hole on each side surface of the electrode frame); the electrode frame through hole (length 500mm, width 300mm) An annular groove 5 is arranged in the middle (the same geometrically symmetrical central axis as the through hole), the thickness of the annular groove 5 is 400um and the electrode frame 4 is evenly divided into two parts, each part has a thickness of 3.8mm, and Place the positive and negative poles of the battery inside. as attached figure 2 shown in the attached figure 2...

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Abstract

The invention relates to an assembly of an electrode frame and a diaphragm of a flow battery, in particular to application of the assembly in the field of flow batteries. Comprising an annular electrode frame with a through hole in the middle, an annular boss or an annular groove is formed in the inner wall face of the middle of the through hole of the electrode frame, a diaphragm is placed in the through hole in the middle of the electrode frame, and the peripheral edge of the diaphragm abuts against the annular platform or is placed in the annular groove in the electrode frame. The technology that the positive electrode and the negative electrode are the same electrode frame is realized in the flow battery; in the assembly process of the flow battery, the use of a sealing material is reduced, the assembly process of the flow battery is optimized, and the cost of the flow battery is reduced; the use of a sealing gasket is reduced, the thickness of the battery is reduced, the volume of the battery is reduced, and the volumetric specific energy is improved; the sealing link in the assembly process of the flow battery is reduced, and the reliability of the electric pile is greatly improved.

Description

technical field [0001] The invention relates to an electrode frame and diaphragm technology for a liquid flow battery, in particular to its application in the field of a liquid flow battery. Background technique [0002] With the growing call for the use of renewable and clean energy, the utilization of renewable energy such as wind energy and solar energy has also received more extensive attention. However, wind power, solar power and other renewable energy power generation is affected by seasons, weather and geographical conditions, and has obvious discontinuity and instability. The electric power it sends out has large fluctuations and poor adjustability. Direct use may have a greater impact on the power grid. Energy storage technology can effectively solve this problem. Therefore, energy storage technology has also become the focus of much attention. Large-scale energy storage technology is considered as a strategic technology to support the popularization of renewab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0273H01M8/0276H01M8/0289H01M8/0202H01M8/18
CPCH01M8/0273H01M8/0202H01M8/0289H01M8/0276H01M8/188
Inventor 史丁秦李先锋张华民
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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