Method for measuring lateral resistance value of carbon felt electrode material of flow cell
A technology for electrode materials and flow batteries, applied in measuring devices, measuring electrical variables, measuring resistance/reactance/impedance, etc., can solve the problems affecting the efficiency of flow batteries and the large influence of preparation process conditions
Inactive Publication Date: 2013-12-18
GAOYOU INST CO LTD DALIAN UNIV OF TECH
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Problems solved by technology
[0004] Since the felt body has a certain thickness, and the preparation process conditions have a great influence on its transverse and longitudinal carbon fibers, the carbon felt electrode material will produce a certain internal resistance in the flow battery, thereby affecting the efficiency of the flow battery
At present, there is no scientifically rigorous, simple and reliable method for measuring the resistance of carbon felt electrode materials.
Method used
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Embodiment Construction
[0010] Such as figure 1 It can be seen that the test method of the present invention is: place the carbon felt electrode material 1 for the flow battery to be tested flat on the insulating flat plate 2, and press two weights of equal weight on the carbon felt electrode material 1 for the flow battery to be tested codes 3 and 4, and between the two weights 3 and 4 and the carbon felt electrode material 1 for the flow battery to be tested, the wires 5 and 6 are respectively clamped, and the two wires 5 and 6 are respectively connected at a resistance value Meter 7 on.
[0011] Record the distance L between the two weights 3 and 4, and the mass M of each weight, then the transverse resistance value ρ of the carbon felt electrode material under the above limited conditions can be read from the resistance value measuring instrument.
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The invention discloses a method for measuring a lateral resistance value of a carbon felt electrode material of a flow cell and relates to the technique for measuring the resistance of the carbon felt electrode material of the flow cell. According to the method for measuring the lateral resistance value of the carbon felt electrode material of the flow cell, the carbon felt electrode material, to be measured, of the flow cell is placed on an insulating panel flat, two weights with the same weight are placed on the carbon felt electrode material, to be measured, of the flow cell in a pressing mode, wires are clamped between the two weights and the carbon felt electrode materials, to be measured, of the flow cell respectively, and the two wires are both connected to a resistance value gauge. The method for measuring the lateral resistance value of the carbon felt electrode material of the flow cell is simple and reliable, the lateral resistance value and a longitudinal resistance value of a carbon felt electrode can be measured accurately, and basic data are provided for assembling of the flow cell and preparation of the carbon felt electrode.
Description
technical field [0001] The invention relates to the storage battery production technology, in particular to the measurement technology of the resistance of the carbon felt electrode material used in the liquid flow battery. Background technique [0002] The redox flow battery has the advantages of good current conversion capability, flexible structure design, reasonable cost, and easy operation. It is a new type of green secondary battery suitable for large-scale energy storage. Different from ordinary electrochemical batteries, the electrode material of the flow battery does not participate in the electrode reaction. The function of the electrode is to provide a place for the redox reaction to occur for the positive and negative ion pairs and provide a channel for transporting electrons. Therefore, the electrode material is the key to determine the flow The core component of battery energy efficiency. [0003] At present, commercial flow batteries generally use PAN carbon ...
Claims
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IPC IPC(8): G01R27/02
Inventor 谭毅张欢施伟李佳艳
Owner GAOYOU INST CO LTD DALIAN UNIV OF TECH