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Lead redox flow battery with flow field design

A flow battery, lead liquid technology, applied in the field of electrochemical energy storage equipment, can solve the problems of small effective flow area, poor battery power stability, low energy density, etc., to improve mass transfer effect, improve stability, and cheap materials. easy-to-get effect

Active Publication Date: 2017-05-17
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0003] The present invention proposes a lead liquid flow battery with a flow field design, the purpose of which is to make the liquid flow velocity distribution of the lead liquid flow battery more uniform, and overcome the small specific gravity of the effective flow area, poor mass transfer effect, and poor power stability of the battery in the prior art and low energy density

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  • Lead redox flow battery with flow field design
  • Lead redox flow battery with flow field design
  • Lead redox flow battery with flow field design

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] Such as figure 1 As shown, the device of the present invention includes a top plate electrode tank, a middle electrode tank, a bottom plate electrode tank, a graphite electrode, a fluororubber sealing gasket, a liquid storage tank and a contained electrolyte solution, a peristaltic pump, an infusion pipeline and fixing bolts. The top plate electrode tank, the middle electrode tank, and the bottom plate electrode tank together form an electrochemical reaction tank. The top plate electrode tank and the bottom plate electrode tank play the role of fixing and packaging, the middle electrode tan...

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Abstract

The invention discloses a lead redox flow battery with flow field design. By designing an electrolyte redox flow runner in a reaction cavity of the lead redox flow battery, flowing speed distribution of redox flow is controlled, and the liquid flow is changed from original flowing along a connecting line between an inlet and an outlet into flowing along the runner, so that the flowing is more uniform and a mass transfer effect can be improved. The problems of relatively low proportion of effective flowing area, poor mass transfer effect, poor battery power stability, not high energy density and the like in the prior art are overcome, and the power performance and the stability of the battery can be further improved.

Description

technical field [0001] The invention belongs to the field of electrochemical energy storage equipment, in particular to a deposition type redox lead flow battery with flow field control. Background technique [0002] With the continuous development of my country's economy and the progress of ecological civilization, many social and economic issues such as energy and the environment urgently require a more efficient and environmentally friendly next-generation electrochemical energy storage technology. At present, redox flow battery (referred to as flow battery) technology is developing vigorously, and has been put into use in various power generation and storage facilities, and vehicles equipped with flow batteries have also come out one after another. The lead flow battery combines the characteristics of the electrolyte flow of the flow battery system and the characteristics of the traditional lead-acid battery with lead as the active material. In the chamber, during the c...

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Application Information

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IPC IPC(8): H01M8/18H01M8/0202H01M8/0258H01M8/026
CPCH01M8/0202H01M8/0258H01M8/026H01M8/188Y02E60/50
Inventor 吴旭纪良鑫陈渊杜威谢梦茹杨家宽
Owner HUAZHONG UNIV OF SCI & TECH
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