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Method and apparatus for analyzing electrolyte of redox flow battery

A technology of flow battery and electrolyte, applied in electrolyte flow treatment, fuel cell, fuel cell auxiliary, etc., to prevent capacity loss

Inactive Publication Date: 2015-06-03
OCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not possible to obtain accurate information about the electrolyte of a redox flow battery by typical electrolyte analysis methods using redox titration or UV absorption.

Method used

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  • Method and apparatus for analyzing electrolyte of redox flow battery
  • Method and apparatus for analyzing electrolyte of redox flow battery
  • Method and apparatus for analyzing electrolyte of redox flow battery

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0049] The analysis module 226 analyzes the second electrolyte solution flowing into the second auxiliary cell 216 through the following process.

[0050] 1) The auxiliary cell controller 228 opens all the valves 206 , 208 , 210 , 212 to allow the first electrolyte solution and the second electrolyte solution to flow into the first auxiliary cell 214 and the second auxiliary cell 216 . in which except figure 2 In other examples where a separate internal line is further formed as described above in addition to the internal lines 222, 224 shown in , the auxiliary cell controller 228 may also allow the electrolyte solution with the same polarity to flow into the first auxiliary cell 214 and the second auxiliary cell 216 in.

[0051] 2) The auxiliary cell controller 228 closes the valves 208 , 212 to confine the second electrolyte solution in the second auxiliary cell 216 . In other examples, the auxiliary cell controller 228 may also close all the valves 206 , 208 , 210 , 212 ...

example 2

[0077] The analysis module 226 analyzes the first electrolyte solution flowing into the first auxiliary cell 214 through the following process. The analysis process in Example 2 is performed similarly to that in Example 1.

[0078] 1) The auxiliary cell controller 228 opens all the valves 206 , 208 , 210 , 212 to allow the first electrolyte solution and the second electrolyte solution to flow into the first auxiliary cell 214 and the second auxiliary cell 216 . in which except figure 2 In other examples where a separate internal line is further formed as described above in addition to the internal lines 222, 224 shown in , the auxiliary cell controller 228 may also allow the electrolyte solution with the same polarity to flow into the first auxiliary cell 214 and the second auxiliary cell 216 middle.

[0079] 2) The auxiliary cell controller 228 closes the valves 206 , 210 to confine the first electrolyte solution in the first auxiliary cell 214 . In other examples, the au...

example 3

[0106] The analysis module 226 analyzes the second electrolyte solution flowing into the second auxiliary cell 216 through the following process. Figure 5 A graph created by the following procedure is shown.

[0107] 1) The auxiliary cell controller 228 opens all the valves 206 , 208 , 210 , 212 to allow the first electrolyte solution and the second electrolyte solution to flow into the first auxiliary cell 214 and the second auxiliary cell 216 . in which except figure 2 In other examples where a separate internal line is further formed as described above in addition to the internal lines 222, 224 shown in , the auxiliary cell controller 228 may also allow the electrolyte solution with the same polarity to flow into the first auxiliary cell 214 and the second auxiliary cell 216 .

[0108] 2) The auxiliary cell controller 228 closes the valves 208 , 212 to confine the second electrolyte solution in the second auxiliary cell 216 . In other examples, the auxiliary cell control...

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Abstract

Disclosed are a method and apparatus for analyzing an electrolyte of a redox flow battery. The method includes passing a first electrolyte solution or a second electrolyte solution through each of a first auxiliary cell and a second auxiliary cell connected to a main cell and a storage tank, closing at least one of the first auxiliary cell and the second auxiliary cell, applying current to the first auxiliary cell and the second auxiliary cell; creating data by measuring a voltage between the first auxiliary cell and the second auxiliary cell, and analyzing an electrolyte contained in the electrolyte solution in the first auxiliary cell or the second auxiliary cell based on variation in the voltage between the first auxiliary cell and the second auxiliary cell according to time. According to the present invention, information on an electrolyte can be obtained more efficiently and easily.

Description

technical field [0001] The present invention relates to a method and apparatus for analyzing an electrolyte of a redox flow battery, and more particularly, to a method and apparatus for analyzing the amount and oxidation number of an electrolyte contained in an electrolyte solution of a redox flow battery . Background technique [0002] A typical secondary battery converts input electrical energy into chemical energy, stores the converted chemical energy through charging, converts the stored chemical energy into electrical energy, and outputs the converted electrical energy through discharging. [0003] Like a typical secondary battery, a redox flow battery converts input electrical energy into chemical energy, stores the converted chemical energy by charging, converts the stored chemical energy into electrical energy, and outputs the converted electrical energy by discharging. However, since a redox flow battery is different from a typical secondary battery in that an elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
CPCH01M8/04H01M8/04194H01M8/188Y02E60/50H01M8/04276G01R31/3648G01R31/385G01R31/396
Inventor 洪珉基姜柄万金守焕金秉哲芮熙昌
Owner OCI
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