Redox flow cell stack and assembly method thereof

A liquid flow battery stack and half-cell technology, which is applied to battery pack components, fuel cell grouping, fuel cells, etc., can solve the problems that electrolyte leakage cannot be completely prevented, and achieve simplified assembly methods, avoiding separation, and avoiding liquid leakage The effect of the risk

Inactive Publication Date: 2010-02-17
BIG PAWER ELECTRICAL TECH XIANGYANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the influence of high pressure, the full-area contact between the above components cannot completely prevent

Method used

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  • Redox flow cell stack and assembly method thereof
  • Redox flow cell stack and assembly method thereof
  • Redox flow cell stack and assembly method thereof

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Embodiment Construction

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] figure 2 with 3 is a perspective view of a receiving frame according to a specific embodiment of the present invention. A recess 12 is provided on one side of the receiving frame 1 and an annular slot 14 is provided on the other side. see also Figure 4 , the recess is used to receive a collector plate 2 . The receiving frame 1 can be inserted into the electrode 3 from the other side. from Figure 4 It can be seen from the figure that the electrode 3 is accommodated in the ring-shaped area formed by the four frame sides of the receiving frame. After installing the electrodes 3 , a diaphragm 5 can be spread flat on the frame surface, and then a sealing ring 4 can be pressed into the slot 14 . All components of such a half-cell are housed in the receiving frame.

[0026] With this arrangement, it is only necessary to st...

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Abstract

The invention provides a redox flow cell stack, which utilizes receiving frames for receiving all elements of a half cell unit. The whole cell stack is formed by the superposition of a plurality of receiving frames. The invention also provides a method for assembling the redox flow cell stack. The problem of liquid leakage among the elements of the cell stack can be well solved by adopting the cell stack.

Description

technical field [0001] The present invention relates to the field of liquid flow batteries, and more particularly relates to an assembly method of the liquid flow batteries. Background technique [0002] The battery stack of a flow battery (such as a vanadium redox flow battery) is usually composed of a certain number of single cells connected in series. Each single cell is composed of a current collector (single collector plate), a liquid flow frame, an electrode, a diaphragm, an electrode, a liquid flow frame, and a current collector (single collector plate). figure 1 It shows a diagram of the components of a battery stack composed of two single cells, starting from the liquid inlet according to the end plate 1, the gasket 2, the current collector (unipolar plate) 3, the electrode 4, the liquid flow frame 5, and the diaphragm 7 , electrode 4, bipolar plate (collector) 6, electrode 4, liquid flow frame 5, electrode 4, current collector (unipolar plate) 3, gasket 2, and end...

Claims

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Application Information

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IPC IPC(8): H01M8/24H01M8/18H01M10/36H01M8/02H01M4/86H01M2/08H01M10/38H01M8/247
CPCY02E60/50Y02E60/10
Inventor史小虎刘素琴张庆华黄可龙周萱王海华李虹云刘维维许秀惠刘根深
OwnerBIG PAWER ELECTRICAL TECH XIANGYANG