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Iron-based redox flow battery system

A liquid flow battery and battery system technology, applied in fuel cells, regenerative fuel cells, circuits, etc., can solve problems such as battery performance degradation

Pending Publication Date: 2018-05-01
河北地标电力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In both cases, the sheet ohmic resistance rises over time and battery performance degrades

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] see figure 1 , the present invention discloses an iron-based redox flow battery system, the battery system includes: a control system, an electroplating electrolyte storage tank 01, a redox electrolyte storage tank 02, a first sensor 03, a second sensor 04, a first External storage tank 05, second external storage tank 06, cathode additive pump 07, anode additive pump 08, cathode 9, anode 10, cathode iron plating layer 11, diaphragm 12, cathode reactor 13, anode reactor 14, first detector Needle 15, second probe 16, first pump body 17, second pump body 18;

[0081] The control system is respectively connected with the first sensor 03, the second sensor 04, the first probe 15, the second probe 16, the cathode additive pump 07, the anode additive pump 08, the first pump body 17, and the second pump body 18, The control system receives the data sensed by the first sensor 03, the second sensor 04, the first probe 15, and the second probe 16, and controls the cathode additi...

Embodiment 2

[0100] Such as figure 1 Shown is an embodiment of an all-iron redox flow battery (IFB) system. The electroplating electrolyte may be stored in a plating electrolyte storage tank, and the redox electrolyte may be stored in a redox electrolyte storage tank. Plating electrolyte and electrolyte may be a suitable salt dissolved in water, such as FeCl 2 and FeCl 3 . Both the electroplating solution and the electrolyte use the same metal salt, but the concentration is different. Two external storage tanks may be fluidly coupled to the anode reactor 14 and cathode reactor 13 of the cell. Separating the anode and cathode reactors and their respective electrolytes is the diaphragm 12 . The separator can be a membrane barrier, such as an ion exchange membrane or a microporous membrane, placed between the redox electrolyte and the plating electrolyte to prevent electrolyte crossover and provide ionic conductivity. Sensors 03 and 04 can be used to determine the chemical properties of...

Embodiment 3

[0119] An iron-based redox flow battery system, the battery system comprising: an electroplating electrode, a redox electrode, an electroplating electrolyte storage tank, a redox electrolyte storage tank, a first reactor, a second reactor, and a first external storage tank , the second external storage tank, control system, monitoring device;

[0120] The electroplating electrolyte storage tank is used to store electroplating electrolyte, and the redox electrolyte storage tank is used to store redox electrolyte;

[0121] the redox electrode is fluidly coupled to a redox electrolyte reservoir, and the plating electrode is fluidly coupled to an electroplating electrolyte reservoir;

[0122] The electroplating electrolyte storage tank is connected to the first reactor through the first delivery pipeline, and the redox electrolyte storage tank is connected to the second reactor through the second delivery pipeline; the first reactor is connected to the electroplating electrode, an...

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Abstract

The invention discloses an iron-based redox flow battery system. The iron-based redox flow battery system comprises an electroplating electrode, a redox electrode, an electroplating electrode storagetank, a redox electrolyte storage tank, a first reactor, a second reactor, a control system and a monitoring device, wherein the electroplating electrolyte storage tank is used for storing an electroplating electrolyte, and the redox electrolyte storage tank is used for storing an redox electrolyte; the redox electrode is used for coupling a fluid to the redox electrolyte storage tank, and the electroplating electrode is used for coupling the fluid to the electroplating electrolyte storage tank; the electroplating electrolyte storage tank is connected to the first reactor through a first conveying pipeline, and the redox electrolyte storage tank is connected to the second reactor through a second conveying pipeline; and the control system is connected to the monitoring device. According tothe iron-based redox flow battery system provided by the invention, the performance of the battery system can be promoted, and the efficiency of the battery system is improved.

Description

technical field [0001] The invention belongs to the technical field of batteries, and relates to a battery system, in particular to an iron-based redox flow battery system. Background technique [0002] A redox flow battery is an electrochemical storage device that stores energy in a chemical substance and converts the stored chemical energy into electrical energy through a spontaneous anti-redox reaction. The reactions in flow batteries are reversible, and conversely, the distributed chemical energy can be recovered by inducing an electric current that reverses the redox reaction. A single redox flow battery generally includes an anode, a membrane barrier, a cathode, and an electrolyte containing electroactive materials. Multiple cells can be connected in series or in parallel to generate higher voltages or currents in flow batteries. Electrolyte is usually stored in an external container and pumped through the sides of the battery. When a charge current is applied, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0444H01M8/04791H01M8/18
CPCH01M8/04477H01M8/0482H01M8/188Y02E60/50
Inventor 张加赢张潮海刘明伟
Owner 河北地标电力科技有限公司
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