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Vanadium cell electrolyte solution storage apparatus

A storage device and electrolyte technology, applied in the direction of regenerative fuel cells, battery pack components, circuits, etc., can solve the problems that ions are easily oxidized and affect the performance of electrolyte, and achieve the effect of avoiding damage

Active Publication Date: 2016-03-23
南京涛博能源科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problems to be solved by the present invention are: (1) during the storage of the vanadium battery electrolyte, the negative electrode V 2+ Ions are easily oxidized; (2) The temperature of the vanadium battery electrolyte affects the performance of the electrolyte during use

Method used

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  • Vanadium cell electrolyte solution storage apparatus

Examples

Experimental program
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Effect test

Embodiment 1

[0014] Such as figure 1 As shown, during the charge and discharge process of the electrolyte, due to the circulation of the electrolyte, the air pressure between the positive and negative liquid storage tanks 1 and 2 of the electrolyte is different. The two liquid storage tanks are filled with inert gas to maintain the balance between the positive and negative liquid storage tanks 1 and 2. When the battery stack is working, it will inevitably generate heat. When the temperature sensor senses that the temperature of the electrolyte exceeds the set temperature, the heat absorbing device 61 is activated, and the heat is discharged through the exhaust device 62 connected to the heat absorbing device 61. go.

Embodiment 2

[0016] Such as figure 1 As shown, when the electrolyte is different from Example 1, when the electrolyte is stored, when the outside air temperature is too low, the performance of the electrolyte will be affected, the electric heating device will be activated, and the heating will start, and the heated wind will pass through the insulation pipe 63 and the exhaust The wind device 62 is sent into the inside of the positive electrode electrolyte liquid storage tank 2 .

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Abstract

The invention relates to flow cells, in particular to a vanadium cell electrolyte solution storage apparatus. The invention solves the technical problems that negative ions V<2+> of a negative electrode in a vanadium cell electrolyte solution storage process are easily oxidized, and the electrolyte solution performance is influenced due to excessively high or excessively low temperature. The vanadium cell electrolyte solution storage apparatus comprises a positive electrolyte solution storage tank and a negative electrolyte solution storage tank, and further comprises a gas pressure balance apparatus filled with inert gas, wherein one end of the gas pressure balance apparatus is connected with the positive electrolyte solution storage tank while the other end of the gas pressure balance apparatus is connected with the negative electrolyte solution storage tank; and the gas pressure balance apparatus is connected with an air pressure sensing control switch. The vanadium cell electrolyte solution storage apparatus has the positive effects that the inert gas balance apparatus is used to balance the gas pressure between a positive electrolyte solution and a negative electrolyte solution, and meanwhile, the inert gas protects the ions V<2+> in the electrolyte solution from oxidization; a heat exchange apparatus ensures that the electrolyte solution has a constant temperature range in charging / discharging and storage processes; and a stirrer is used for stirring the added electrolyte solution.

Description

technical field [0001] The invention relates to a liquid flow battery, in particular to a vanadium battery electrolyte storage device. Background technique [0002] Vanadium batteries, as large-scale electric energy storage and high-level conversion equipment in the power generation system, are used for peak-shaving and valley-filling and load balancing of the power grid, which play a role in improving the quality of power supply and stabilizing the operation of power stations, and will be used on a large scale. The electrolyte of the vanadium battery is stored in two liquid storage tanks respectively, and the pump drives the electrolyte to the battery stack, and then returns to the liquid storage tank to form a circulating liquid flow circuit to realize the charging and discharging process. The storage of vanadium battery electrolyte is closely related to the performance of the battery. The charge and discharge of the battery and the storage of the electrolyte need to consi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/18H01M2/00
CPCY02E60/50Y02E60/10
Inventor 周汉涛蔡忠伟
Owner 南京涛博能源科技有限公司
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