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Redox flow cell system and shutdown protection method as well as device thereof

A flow battery, shutdown protection technology, applied in indirect fuel cells, fuel cell control, regenerative fuel cells, etc., can solve the problem of reducing the life of the battery stack, and achieve the effect of improving the service life and avoiding deterioration or precipitation of precipitates.

Active Publication Date: 2012-02-15
DONGFANG ELECTRIC (CHENGDU) HYDROGEN FUEL CELL TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a liquid flow battery system and its shutdown protection method and device, so as to solve the problem that the service life of the battery stack is reduced due to the deterioration of the electrolyte or the precipitation of precipitates when the liquid flow battery system is shut down for a long time

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  • Redox flow cell system and shutdown protection method as well as device thereof
  • Redox flow cell system and shutdown protection method as well as device thereof
  • Redox flow cell system and shutdown protection method as well as device thereof

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0031] First, the specific implementation of the shutdown protection method of the flow battery system is introduced.

[0032] figure 2 is a flow chart of the shutdown protection method of the flow battery system according to the first embodiment of the present invention, as shown in figure 2 As shown, the method includes the following steps S102 to S106:

[0033] Step S102: Detect the running state of the flow battery system. The running state here only refers to whether the system is on or off, and does not refer to whether the system is running well or not.

[0034] Step S104: Determine whether the flow battery system is shut down. If the system is shut down, execute step S106; otherwis...

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Abstract

The invention discloses a redox flow cell system and a shutdown protection method as well as device thereof. The shutdown protection method for the redox flow cell system comprises the following steps: detecting the running status of the redox flow cell system; judging whether the redox flow cell system is shut down or not; and after the redox flow cell system is shut down, controlling the redox flow cell system to discharge. Through the redox flow cell system and the shutdown protection method as well as device thereof, after the redox flow cell system stops running, residual electrolytes in a cell stack is carried out slow discharge so as to enable the cell stack to be within a safe charge state range, thereby, the phenomenon that the electrolytes deteriorate or precipitates are separated out because of long-time shutdown is avoided, and the service life of the cell stack is prolonged.

Description

technical field [0001] The present invention relates to the field of liquid flow batteries, in particular to a liquid flow battery system and a shutdown protection method and device thereof. Background technique [0002] A flow battery is an electrochemical reaction device that uses metal ion electrolytes of different valences for redox, and can efficiently realize the mutual conversion between chemical energy and electrical energy. This type of battery has the advantages of long service life, high energy conversion efficiency, good safety, and environmental friendliness. It can be used in large-scale energy storage systems for wind power generation and photovoltaic power generation. It is the main choice for power grid peak shaving and valley filling and load balancing one. Therefore, in recent years, flow batteries have gradually become the focus of research on large-capacity energy storage batteries. [0003] Taking the all-vanadium redox flow battery as an example, van...

Claims

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Application Information

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IPC IPC(8): H01M8/04H01M8/18H01M8/20H01M8/04298
CPCY02E60/50
Inventor 汤浩殷聪谢光有练勇王荣贵胡蕴成
Owner DONGFANG ELECTRIC (CHENGDU) HYDROGEN FUEL CELL TECH CO LTD
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