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Liquid inlet and outlet nozzle device for redox flow cell and redox flow cell containing liquid inlet and outlet nozzle device

A technology of flow battery and liquid outlet, which is applied in secondary batteries, regenerative fuel cells, battery pack components, etc., can solve problems such as corrosion and liquid leakage, and achieve the effect of avoiding liquid leakage

Inactive Publication Date: 2011-05-25
BIG PAWER ELECTRICAL TECH XIANGYANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a liquid inlet or outlet device of a liquid flow battery to solve the problem of liquid leakage caused by electrolyte corrosion at the inlet and outlet of the liquid flow battery in the prior art

Method used

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  • Liquid inlet and outlet nozzle device for redox flow cell and redox flow cell containing liquid inlet and outlet nozzle device
  • Liquid inlet and outlet nozzle device for redox flow cell and redox flow cell containing liquid inlet and outlet nozzle device
  • Liquid inlet and outlet nozzle device for redox flow cell and redox flow cell containing liquid inlet and outlet nozzle device

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Embodiment Construction

[0013] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0014] figure 2 A structural diagram of the first liquid inlet and outlet nozzles is shown. Said first liquid inlet nozzle or liquid outlet nozzle comprises a first tubular body 10, including a first tubular body 12, with an annular extension 14 on an end face of the first tubular body 12, and extending in said annular There is a notch 16 at the far end of the portion. In the assembled battery stack, such as Figure 4 As shown, the annular portion of the annular extension portion 14 without a gap extends through the monopolar plate 3 , while the portion with the gap extends out of the inner surface of the current collector, that is, the side away from the end plate. The first liquid inlet and outlet nozzles lead the electrolyte into the corresponding electrode chamber through the gap. As a modification example, the annular porti...

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PUM

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Abstract

The invention provides a liquid inlet or outlet nozzle device for a redox flow cell, comprising a first liquid inlet nozzle or outlet nozzle and a second liquid inlet nozzle or outlet nozzle, wherein the first liquid inlet nozzle or outlet nozzle comprises a first tube-shaped body, the body comprises a first tubular body, an annular extension part is arranged on an end surface of the first tubular body, and a notch is arranged at the remote end of the annular extension part; the second liquid inlet nozzle or outlet nozzle is a tube-shaped part, and directly extends to a through hole of a first redox flow frame relative to a redox flow cell end plate. The design avoids the phenomenon that electrolytic solution flushes a liquid inlet or outlet of a cell part in a flowing process, therefore,the phenomenon of liquid leakage after a cell is used for a long term is avoided.

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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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/36H01M8/18H01M10/36H01M50/627
CPCY02E60/528Y02E60/12Y02E60/50Y02E60/10
Inventor 刘素琴史小虎张庆华黄可龙孙维民周萱李虹云刘维维仲晓玲陈若媛王海华
Owner BIG PAWER ELECTRICAL TECH XIANGYANG