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Flow battery electrode frame, application thereof and flow battery

A liquid flow battery and electrode frame technology, applied in fuel cells, circuits, electrical components, etc., can solve problems such as hindering commercialization and industrialization, high cost, loss of sealing function, etc., achieve simple preparation process and reduce stack cost , Conducive to the effect of industrialization

Active Publication Date: 2020-06-09
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

Not only the cost is high, but also the production efficiency is low, making it difficult to realize continuous and mechanized production
The integration of the stack is also difficult to achieve fully mechanized integrated assembly
As a result, the cost of flow battery stacks has been high, and the advantages compared with lithium batteries cannot be brought into play, which seriously hinders its commercialization and industrialization.
At the same time, the above-mentioned rubber sealing gasket will also age and lose its sealing function with the increase of operating time, and the maintenance of the stack will increase the cost input

Method used

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  • Flow battery electrode frame, application thereof and flow battery
  • Flow battery electrode frame, application thereof and flow battery
  • Flow battery electrode frame, application thereof and flow battery

Examples

Experimental program
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Effect test

Embodiment

[0025] Place the ion-conducting membrane in the strip-shaped step of the No. 1 electrode frame, which is surrounded by the through hole in the middle and the bottom edge of the groove. Laser welding is used to weld the ion-conducting membrane and the strip-shaped steps together. This constitutes a frame-membrane integrated structure ( figure 1 ). This welding can prevent the active materials in the positive and negative electrodes inside the battery from contacting each other, causing a decrease in the coulombic efficiency of the battery.

[0026] Place the bipolar plate in the strip-shaped step of the No. 2 electrode frame, which is surrounded by the through hole in the middle and the bottom edge of the groove. Laser welding is used to weld the bipolar plate and the strip steps together. This constitutes a frame-plate integrated structure ( figure 2 ). This welding can also prevent the active materials in the positive and negative electrodes inside the battery from cont...

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Abstract

The invention relates to a flow battery electrode frame, application thereof and a flow battery. The flow battery electrode frame has a flat-plate-shaped structure; a groove is formed in the middle ofone side of the flat-plate-shaped structure, or a pair of grooves with symmetrical surfaces is formed in the middle of the two sides of the flat-plate-shaped structure, and a middle through hole is formed in the middle of the bottom surface of the groove. By adopting the structure, the electrode frame and an ion conduction membrane or a bipolar plate can form an integrated structure, and the integrated structure can be assembled into a galvanic pile through welding or bonding, so that the galvanic pile integration process is simplified, and full-mechanical production can be realized.

Description

technical field [0001] The invention relates to a liquid flow battery structure, in particular to an electrode frame structure of a liquid flow battery and an electric stack formed therefrom. Background technique [0002] The development and utilization of renewable energy is an important choice for developing strategic emerging industries and promoting the transformation of economic development mode. The large-scale development and utilization of renewable energy will significantly reduce the consumption of fossil energy resources for economic development, reduce the damage to the environment, and gradually transform my country's development model that relies heavily on resource consumption into a scientific development model that consumes less resources and lowers environmental pollution. At the same time, renewable energy is a fast-growing strategic emerging industry. The development of renewable energy plays a significant role in stimulating the development of high-end e...

Claims

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Application Information

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IPC IPC(8): H01M8/0273
CPCH01M8/0273Y02E60/50
Inventor 邢枫李先锋张华民
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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