Novel flow frame device for all vanadium ion redox flow battery
A liquid flow battery and liquid flow frame technology, which is applied in the direction of fuel cells, fuel cell additives, regenerative fuel cells, etc., can solve the problems of battery efficiency decline, cracks, high price, etc., achieve super high power output guarantee, and simple manufacturing process , The effect of improving battery efficiency
Active Publication Date: 2012-07-04
QINGDAO WUXIAO GRP
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Problems solved by technology
Due to the limited area of the domestically produced conductive bipolar plate raw material graphite plate, if it develops to a higher power, it will be subject to certain restrictions. The area of the graphite plate produced abroad can be slightly larger, but the price is more expensive and the cost is too high
In addition, due to the brittleness of the graphite plate, the area of the machine-made plate should not be too large, otherwise, it is easy to deform due to uneven force during the assembly process, and the long-term stress may cause cracks, resulting in the mutual penetration of the two-electrode electrolyte, which will reduce the battery efficiency.
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[0016] With reference to the drawings, a flow frame device for an all-vanadium ion redox flow battery includes a flow frame frame 1 with a square shape. The flow frame frame 1 is made of plastic material. A flow frame is provided on the flow frame frame 1. A horizontal frame 2 and a vertical frame 3, and the horizontal frame 2 and the vertical frame 3 are perpendicularly intersected, so that the overall frame presents a square-shaped structure. The horizontal frame 2 and the vertical frame 3 divide the square liquid flow frame frame 1 into four areas, and each area is equipped with a conductive double electrode graphite plate 4 to form an electrochemical reaction zone. For the convenience of description, they are called respectively They are the first reaction zone 5, the second reaction zone 6, the third reaction zone 7 and the fourth reaction zone 8. A first liquid inlet 101 and a second liquid inlet 102 are provided on the lower frame of the liquid flow frame frame, and a fi...
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The invention discloses a flow frame device for an all vanadium ion redox flow battery. The novel flow frame device comprises a frame of a quadrilateral flow frame, wherein a transverse frame and / or a longitudinal frame are / is further arranged on the frame of the flow frame; the frame of the quadrilateral flow frame is divided into a plurality of regions of which each is provided with a conductive double-electrode graphite plate to form an electrochemical reaction region; a vertical runner perpendicular to the transverse frame is formed on the transverse frame; a transverse runner perpendicular to the longitudinal frame is formed on the longitudinal frame; and a first liquid inlet, a first liquid outlet, a second liquid inlet and a second liquid outlet are formed on the frame of the flow frame respectively. The device solves the problem that the vanadium battery is restricted by a conductive double-electrode material (graphite plate), increases the original electrode area by 4 to 20 times, realizes single battery stack of ultrahigh output power and improves the efficiency of the battery.
Description
Technical field [0001] The invention relates to the field of flow energy storage batteries, in particular to a flow frame device of an all-vanadium ion redox flow battery. Background technique [0002] The vanadium redox flow battery is a green and environmentally friendly battery. The vanadium redox flow battery is mainly used as an energy storage power source in large-scale places such as power plants or power stations, large-scale photovoltaic conversion, energy storage power for wind power generation, and as a peripheral area Energy storage system, and uninterruptible power supply or emergency power supply system, etc. [0003] With the wide application of all-vanadium redox flow batteries, there is a great demand trend for large-scale energy storage batteries. At present, the liquid flow frame of the largest single-stack battery made by domestic scientific research institutions is a single frame, and the maximum output power of the stack is 5KW. To increase the output power ...
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IPC IPC(8): H01M8/04H01M2/38H01M8/0258H01M8/0273H01M8/18
CPCY02E60/50
Inventor 韩恭武张建国唐建妮万红桥薛太白
Owner QINGDAO WUXIAO GRP