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Structure of redox flow battery

A technology of liquid flow batteries and electric stacks, which is applied to the parts of fuel cells, fuel cells, battery electrodes, etc., can solve problems such as bipolar plate collapse, uneven electrode frame levels, and external leakage, and achieve convenient and fast assembly. The effect of simple and reasonable structure and low additional cost

Inactive Publication Date: 2011-08-10
DALIAN RONGKE POWER
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  • Summary
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  • Claims
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Problems solved by technology

The current structure of the stack has some disadvantages, especially after a period of operation, the electrode frame of the stack has uneven layers, which can cause serious problems such as external leakage and bipolar plate collapse, which directly threaten the stack / system safe operation of

Method used

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  • Structure of redox flow battery

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Effect test

Embodiment 1

[0016] Battery structure such as figure 1 As shown, four rods used to limit the misalignment of the electrode frame pass through the end plate and the electrode frame, and are located on the long side of the electrode frame. The rod for limiting the dislocation of the electrode frame is composed of a Φ4 stainless steel rod covered with a Φ6×1 nylon tube, and the corresponding hole for restricting the dislocation of the electrode frame is Φ6.5.

[0017] Electrode area: 225cm2, number of single cells: 13.

[0018] After 2000 hours of continuous operation, the electrode frame has no obvious misalignment. The battery efficiency is not attenuated and remains at 86-89%, 90.5-92.4%, and the energy efficiency is greater than 80%

Embodiment 2

[0020] Battery structure such as figure 1 As shown, 6 rods used to limit the misalignment of the electrode frame pass through the end plate and the electrode frame, of which 4 are on the long side of the electrode frame and 2 are on the short side. The rod for restricting the dislocation of the electrode frame is made of Φ6×1 stainless steel tube, and the corresponding hole for restricting the dislocation of the electrode frame is Φ6.5.

[0021] The electrode area: 460cm2, the number of single cells: 20.

[0022] After 1500 hours of continuous operation, there is no obvious misalignment of the electrode frame. The battery efficiency is not attenuated, and remains at 85-89%, 90.2-91.0%, and the energy efficiency is greater than 78%.

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Abstract

The invention relates to the technical field of chemical power energy storage, and in particular relates to a structure of a redox flow battery. The structure of the redox flow battery is characterized in that: as a series of poles limiting the malposition of electrode frames are arranged on an end plate of the battery and penetrate through the battery (pile), the irregularity of the electrode frames during running can be effectively prevented from happening. Therefore, the problems such as leakage and change of the flowing through section of a shared pipeline caused by the malposition of the electrode frames during the long-term running process of the pile are solved; and the service life of the battery (pile) is prolonged.

Description

technical field [0001] The invention relates to the structure of an energy storage battery, in particular to a structure of a redox flow battery. Background technique [0002] In order to protect human beings from the threat of climate warming, the United Nations Framework Convention on Climate Change imposes index limits on carbon dioxide emissions in various countries. For this reason, many countries gradually shift their energy development strategies to renewable energy sources, such as wind energy, solar energy, and tidal energy. In order to solve the contradiction between the supply and demand of renewable energy, the development of large-scale energy storage is imperative. At the same time, large-scale electric energy storage plays an important role in electric energy management, grid auxiliary services, voltage control, and large-scale uninterruptible power supplies. If large-scale electric energy is combined with large-scale thermal power generation, it can reduce th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/20H01M8/02H01M4/86H01M8/0273
CPCY02E60/528Y02E60/50
Inventor 高素军张华民刘景开韩希
Owner DALIAN RONGKE POWER
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