Matching structure of polar plate and electrode and flow battery with matching structure
A matching structure and liquid flow battery technology, applied in the direction of structural parts, regenerative fuel cells, battery pack parts, etc., can solve the problems of high contact resistance, low voltage efficiency and energy efficiency, etc., to increase the contact area, reduce the The effect of contact resistance
Inactive Publication Date: 2015-11-04
中国东方电气集团有限公司
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Problems solved by technology
[0004] The main purpose of the present invention is to provide a matching structure of the pole plate and the electrode and a flow battery with the matching structure, so as to solve the problems caused by the large contact resistance between the pole plate and the electrode of the flow battery in the prior art and lead to voltage efficiency. and the problem of reduced energy efficiency
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[0034] 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.
[0035] Such as Figure 2 to Figure 8 As shown, the matching structure of the electrode plate and the electrode of the present invention is used to assemble the flow battery. The flow battery includes the electrode plate 10 and the electrode 20. The electrode 20 of the present invention is a porous electrode, and the contact between the electrode plate 10 and the electrode 20 is arranged. , wherein the electrode plate 10 has a first contact surface, the electrode 20 has a second contact surface, and the first contact surface and the second contact surface are concave-convex surfaces that cooperate with each other. Further, the contact surface between the pole plate 10 and the electrode 20 can b...
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The invention provides a matching structure of a polar plate and an electrode and a flow battery with the matching structure. The matching structure is used for assembling the flow battery. The flow battery comprises a polar plate and an electrode, wherein the polar plate and the electrode are in contact arrangement, the polar plate is provided with a first contact surface, the electrode is provided with a second contact surface, and the first contact surface and the second contact surface are mutually matching concave and convex surfaces. By adopting the technical scheme provided by the invention, a problem that voltage efficiency and energy efficiency are lowered due to large contact resistance between the polar plate and the electrode of the flow battery in the prior art can be solved.
Description
technical field [0001] The invention relates to the field of liquid flow battery production and manufacturing, in particular, to a matching structure of an electrode plate and an electrode and a liquid flow battery with the matching structure. Background technique [0002] In flow battery stacks, such as figure 1 As shown, the composition of the battery stack is composed of a liquid flow frame 1, a pole plate 2, a porous electrode 3 and an ion exchange membrane 4 stacked in series in sequence. In the prior art, the contact surface between the pole plate 2 and the porous electrode 3 is a plane, wherein, figure 1 The black arrows shown in are the main flow directions of the electrolyte. [0003] During the operation of the flow battery, the main energy loss is the polarization loss and the resistance ohmic loss caused by the electrochemical reaction conversion process, wherein the resistance in the resistance ohmic loss includes the resistance of the conductor body in the fl...
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Login to View More IPC IPC(8): H01M2/24H01M2/26H01M8/18H01M50/529
CPCH01M8/18H01M50/529H01M50/531Y02E60/50Y02E60/10
Inventor 周正高艳刘佳燚房红琳李扬殷聪
Owner 中国东方电气集团有限公司