Bipolar plate for flow batteries

A flow battery and bipolar plate technology, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as corrosion of bipolar plates, damage to bipolar plates, etc., to extend service life, improve service life, and ensure stable operation. Effect
CN103474673AActive Publication Date: 2013-12-25DALIAN RONGKE POWER
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DALIAN RONGKE POWER
Publication Date
2013-12-25

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Abstract

The invention relates to a bipolar plate for flow batteries, belonging to the field of flow batteries. The bipolar plate is divided into an electrode zone and a non-electrode zone, wherein the electrode zone is a zone where the flow battery bipolar plate contacts the adjacent electrodes on the two sides, and the rest is the non-electrode zone; the non-electrode zone is divided into a flow channel zone and a non-flow channel zone; the flow channel zone is a zone where the non-electrode zone contacts flow-channel-bearing frames of the adjacent electrode frames on the two sides, and the rest of non-electrode zone is the non-flow channel zone; and the flow channel zone is an anti-corrosion insulation zone. The flow channel zone of the bipolar plate is the anti-corrosion insulation zone, and the bipolar plate flow channel zone in contact with the flow channel zone of the electrode frame is set as the anti-corrosion insulation zone so as to achieve the goal of preventing electrochemical corrosion, thereby prolonging the service life of the bipolar plate and ensuring the stable operation of the flow battery.
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Description

technical field

[0001] The invention relates to a bipolar plate for a liquid flow battery, belonging to the field of liquid flow batteries. Background technique

[0002] All-vanadium redox flow battery is one of the preferred technologies for large-scale energy storage applications, and the development, design and application of high-power stacks is an inevitable trend. The stack is the core component of the all-vanadium redox flow battery, and its performance directly determines the performance and cost of the entire system. The basic structure of the stack includes current collector plate, sealing structure, electrode frame, electrode and ion exchange membrane. The bipolar plate has the function of transferring electrons and separating the positive and negative electrolytes, and the functioning area is the electrode area. The opposite non-electrode area needs to be protected, otherwise the bipolar plate will be damaged due to oxidation, corrosion and other reasons. [00...

Claims

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