Electric pile screen plate

Abstract

The utility model relates to the technical field of battery energy storage, in particular to an electric pile screen, which mainly comprises a carbon plate and two symmetrically arranged clamping plates, the carbon plate is clamped between the two clamping plates by the two clamping plates, and the carbon plate is clamped between the two clamping plates by the two clamping plates. Wherein a first flow channel groove and a second flow channel groove are symmetrically formed in the surface of one clamping plate relative to the carbon plate, the first flow channel groove is used for flowing of unreduced electrolyte, the second flow channel groove is used for flowing of reduced electrolyte, and the surface, located on one side of the first flow channel groove, of the carbon plate is covered with an ion exchange membrane. Through the structure, the carbon plate is clamped between the two clamping plates more firmly by using the two clamping plates instead of using an adhesive tape for bonding, so that the carbon plate does not fall off as much as possible, and the service life of the whole device is greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery energy storage, and particularly relates to a stack net plate. BACKGROUND

[0002] Vanadium flow battery is an electrochemical energy storage system with vanadium ions as energy carriers, which has attracted wide attention due to its high energy conversion efficiency and long cycle life. Its working principle is to release and store energy through the oxidation and reduction reaction of vanadium ions in the electrolyte between the cathode and the anode. The main feature of vanadium flow battery is that its energy and power can be independently adjusted, which is suitable for large-scale energy storage needs, such as balancing renewable energy and stabilizing the power grid.

[0003] Among them, the middle carbon plate is used as a medium to form several battery sub-units. In the prior art, the carbon plate is usually fixed on the plate by adhesive tape. After a certain period of use, the adhesive tape may age and fall off, resulting in the falling off of the carbon plate. SUMMARY

[0004] The utility model aims at providing a kind of stack net plate to solve the problem of carbon plate not firm in prior art.

[0005] The present application is achieved by the following technical solutions:

[0006] A kind of stack net plate, including carbon plate and two symmetrically arranged clamping plates, two The carbon plate is clamped and arranged between the clamping plates, the surface of one of the clamping plates is provided with two flow channels for electrolyte flow, the flow channel is provided with a cover plate, the two ends of the flow channel are provided with injection hole and outflow hole, the side of the flow channel close to the carbon plate is provided with a plurality of channels for liquid flow to the carbon plate, the surface of the carbon plate on one side of the first flow channel is covered with an ion exchange membrane.

[0007] Preferably, the adjacent side of two The clamping plate is provided with a plurality of grooves and protrusions respectively, the protrusion of one of the clamping plates is used to connect with the groove of another The clamping plate, glue injection groove is formed on two The clamping plate, glue injection hole is formed on one of the clamping plates at the glue injection groove, the glue injection hole penetrates the glue injection groove.

[0008] Preferably, the ion exchange membrane and the carbon plate are provided with adsorbing fibers.

[0009] Preferably, a sealant strip is provided between the clamping plate and the carbon plate.

[0010] Preferably, the two sides of the protrusion are provided with clamping units, and the clamping units are used to connect the groove and the protrusion.

[0011] Preferably, the clamping unit comprises a clamping block and a spring, one end of the clamping block is connected with the protrusion through the spring, and the other end of the clamping block is hinged with the protrusion.

[0012] Preferably, a limiting plate is arranged on the other end of the clamping block away from the protrusion, and the height of the limiting plate is greater than the height of the upper surface of the clamping block when the upper surface of the clamping block is perpendicular to the side surface of the protrusion.

[0013] Preferably, a plurality of positioning columns and positioning holes are arranged on the side surface of the clamping plate adjacent to the other clamping plate.

[0014] The technical scheme of the utility model has at least the following advantages and beneficial effects:

[0015] The structure provided by the utility model mainly comprises a carbon plate and two symmetrically arranged clamping plates, the carbon plate is clamped between the two clamping plates, a first flow channel groove and a second flow channel groove are symmetrically arranged on the surface of one of the clamping plates, the first flow channel groove is used for the flow of unreduced electrolyte, the second flow channel groove is used for the flow of reduced electrolyte, and an ion exchange membrane is arranged on the surface of the carbon plate on the side of the first flow channel groove. Through the above structure, the carbon plate is clamped between the two clamping plates more firmly instead of being bonded by using a rubber strip, so that the carbon plate is prevented from falling off as much as possible, and the service life of the whole device is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0017] Fig. 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Fig. 2 It is a schematic diagram of the utility model.

[0019] Fig. 3 It is a schematic diagram of the clamping unit of the utility model.

[0020] Figure: 1-injection hole, 2-clamping plate, 3-cover plate, 4-gel injection hole, 5-flow channel groove, 6-channel, 7-outflow hole, 8-adsorption fiber, 9-gel injection groove, 10-carbon plate, 11-ion exchange membrane, 12-clamping block, 13-groove, 14-spring, 15-protrusion. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0022] Please refer to Figs. 1-3 A kind of electric pile net plate, including carbon plate 10 and two symmetrically arranged clamping plates 2, two described clamping plates 2 are arranged in the described carbon plate 10 between two clamping plates 2, the surface of one of the clamping plates 2 is symmetrically provided with two flow channel grooves 5 to carbon plate 10, the flow channel groove 5 is used for electrolyte flow, the flow channel groove 5 is provided with cover plate 3, two ends of the flow channel groove 5 are provided with injection hole 1 and outflow hole 7 respectively, the flow channel groove 5 is provided with several passages 6 for liquid flow to carbon plate 10 on the side close to carbon plate 10, the surface of carbon plate 10 on the side of first flow channel groove 5 is covered with ion exchange membrane 11.

[0023] Wherein, two clamping plates 2 are consistent in shape, and are rectangular structures as a whole, have a certain thickness, two sides are bonded and connected, carbon plate 10 is fixed between two clamping plates 2, the surface of one of the clamping plates 2 is symmetrically provided with two flow channel grooves 5, two flow channel grooves 5 are the same structure, are used for electrolyte flow, carry out oxygen reduction reaction, electrolyte enters flow channel groove 5 from injection hole 1, carbon plate 10 plays a role of conducting electricity, and electrolyte that completes oxygen reduction reaction is discharged from outflow hole 7.

[0024] Secondly, ion exchange membrane 11 is provided, hydrogen ions flow to generate current, which is a conventional technical means in the art, and the utility model will not be described in detail.

[0025] The structure provided by the utility model mainly includes carbon plate 10 and two symmetrically arranged clamping plates 2, two described clamping plates 2 are arranged in the described carbon plate 10 between two clamping plates 2, the surface of one of the clamping plates 2 is symmetrically provided with first flow channel groove 5 and second flow channel groove 5 to carbon plate 10, the first flow channel groove 5 is used for unreduced electrolyte flow, the second flow channel groove 5 is used for reduced electrolyte flow, the surface of carbon plate 10 on the side of first flow channel groove 5 is covered with ion exchange membrane 11. Through the above structure, instead of using the mode of adhesive tape bonding, carbon plate 10 is more firmly clamped between two clamping plates 2 using two clamping plates 2, which makes carbon plate 10 not fall off as much as possible, and greatly improves the service life of the whole device.

[0026] In order to better connect the two clamping plates 2 more stably, one side of the two clamping plates 2 is provided with a plurality of grooves 13 and protrusions 15, wherein the protrusion 15 of one of the clamping plates 2 is used for being connected with the groove 13 of the other clamping plate 2, and glue injection grooves 9 are formed in the two clamping plates 2, wherein a glue injection hole 4 is formed in one of the clamping plates 2 at the glue injection groove 9, and the glue injection hole 4 penetrates the glue injection groove 9.

[0027] The contact area of the two clamping plates 2 is increased through the grooves 13 and the protrusions 15, so that the clamping plates 2 are not easy to fall off, and secondly, the two clamping plates 2 are more stably adhered together through the glue injection mode.

[0028] In one example embodiment of the utility model, adsorbing fiber 8 is arranged between ion exchange membrane 11 and carbon plate 10, and the adsorbing fiber 8 can make the electrolyte cover more uniformly and react more fully by covering carbon plate 10.

[0029] Secondly, in order to prevent the electrolyte from flowing into the gap between the clamping plates 2, a sealing rubber strip is arranged between the clamping plates 2 and the carbon plate 10.

[0030] In one example embodiment of the utility model, the two sides of the protrusion 15 are respectively provided with a clamping unit, and the clamping unit is used for connecting the groove 13 and the protrusion 15.

[0031] Specifically, the clamping unit comprises a clamping block 12 and a spring 14, one end of the clamping block 12 is connected with the protrusion 15 through the spring 14, and the other end is hinged with the protrusion 15.

[0032] The other end of the clamping block 12 away from the hinge with the protrusion 15 is provided with a limiting plate, and the height of the limiting plate is greater than the height of the upper surface of the clamping block 12 and the side surface of the protrusion 15 when they are perpendicular.

[0033] The protrusion 15 is provided with an inward groove 13, and the clamping block 12 is in the shape of a triangular prism, one side of which is rotatably connected with the protrusion 15, and the other side is connected with the limiting plate, which is used for preventing the clamping block 12 from falling off.

[0034] Secondly, a plurality of positioning columns and positioning holes are arranged on one side surface of the two clamping plates 2, which are used for positioning during installation.

[0035] The above merely is preferred embodiment of the present utility model, and is not for limiting the present utility model, for the person skilled in the art, the present utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A type of electrode stack mesh plate, characterized in that, The device includes a carbon plate (10) and two symmetrically arranged clamping plates (2). The two clamping plates (2) clamp the carbon plate (10) between the two clamping plates (2). The surface of one of the clamping plates (2) has two flow channels (5) symmetrically arranged on the carbon plate (10). The flow channels (5) are used for electrolyte flow. The flow channels (5) are provided with a cover plate (3). The two ends of the cover plate (5) are respectively provided with an injection hole (1) and an outlet hole (7). The side of the flow channel (5) near the carbon plate (10) has several channels (6) for liquid to flow to the carbon plate (10). The surface of the carbon plate (10) located on the side of the first flow channel (5) is covered with an ion exchange membrane (11). The two clamping plates (2) are provided with a number of grooves (13) and protrusions (15) on their adjacent sides respectively. The protrusion (15) of one clamping plate (2) is used to connect with the groove (13) of the other clamping plate (2). Both clamping plates (2) are provided with glue injection grooves (9). One clamping plate (2) is provided with a glue injection hole (4) at the glue injection groove (9). The glue injection hole (4) passes through the glue injection groove (9).

2. The electrode stack mesh plate according to claim 1, characterized in that, An adsorption fiber (8) is disposed between the ion exchange membrane (11) and the carbon plate (10).

3. The electrode stack mesh plate according to claim 1, characterized in that, A sealing strip is provided between the clamping plate (2) and the carbon plate (10).

4. The electrode stack mesh plate according to claim 1, characterized in that, Several positioning posts and positioning holes are provided on one side of the two clamping plates (2) adjacent to each other.

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