Pole plate support device and electrochemical device

Abstract

The utility model discloses an electrode plate supporting device and electrochemical equipment, electrode plate supporting device includes support frame, and support frame includes frame body and support grating, and support grating is located on frame body, and frame body is surrounded with support grating between and is placed the cavity for the electrode plate extension, and support grating includes a plurality of vertical support bars and a plurality of horizontal support bars, and the thickness size of vertical support bar in second horizontal is greater than the thickness size of horizontal support bar in second horizontal. Vertical support bar plays the role of guiding electrode plate extension and placing cavity, prevents the electrode plate from sticking board or scratching the surface coating of electrode plate in the installation process, and vertical support bar and horizontal support bar all play the role of isolating electrode plate and diaphragm bag, effectively prevent the direct contact of electrode plate and diaphragm bag from leading to burn bag, make the current distribution even on the surface of electrode plate, and then reduce the reaction energy consumption, improve the quality of electrode sheet.

Description

Technical Field

[0001] This utility model belongs to the field of electrochemical technology, specifically relating to an electrode plate support device and an electrochemical device. Background Technology

[0002] In electrowinning or electrolysis processes, metal ions are often deposited on the surface of electrode plates to form electrode sheets. The surface quality of the electrode plates is an important indicator affecting the quality of the electrode sheets. However, existing electrolysis or electrowinning processes suffer from high energy consumption and low electrode sheet quality. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies, this utility model provides an electrode plate support device and an electrochemical device, aiming to solve the technical problems of high energy consumption and low electrode quality.

[0004] To achieve the above objectives, this utility model provides an electrode plate support device, which includes a support frame, the support frame comprising:

[0005] Border text;

[0006] A support grid plate is disposed on the frame body, and the frame body and the support grid plate form a placement cavity for the electrode plate to extend into. The support grid plate includes multiple vertical support ribs and multiple horizontal support ribs. The multiple vertical support ribs are spaced apart along the first horizontal direction, and the multiple horizontal support ribs are spaced apart along the vertical direction. The thickness of the vertical support ribs in the second horizontal direction is greater than the thickness of the horizontal support ribs in the second horizontal direction.

[0007] In this embodiment of the utility model, the number of support grids is set to two, and the two support grids are arranged on the frame body at a second lateral interval, with the placement cavity located between the two support grids.

[0008] In this embodiment of the utility model, the electrode plate support device further includes a positioning member, which passes through the support grid and extends into the placement cavity to abut against the electrode plate, and multiple positioning members are spaced apart on each support grid.

[0009] In this embodiment of the utility model, the intersection of any vertical support rib and any horizontal support rib is set as an intersecting connection point, and the positioning member is set through the intersecting connection point.

[0010] In this embodiment of the utility model, the positioning member includes a knob part and a screw part. The knob part abuts against the side of the support grid plate opposite to the placement cavity. One end of the screw part is connected to the knob part. The screw part passes through the support grid plate and is threadedly connected to the support grid plate. The other end of the screw part extends into the placement cavity and abuts against the electrode plate.

[0011] In this embodiment of the utility model, the support frame further includes a reinforcing block, which is disposed in the placement cavity and connected between two vertical support ribs that are spaced apart along the second lateral direction; the frame body includes a bottom frame and two side frames, which are spaced apart along the first lateral direction at both ends of the bottom frame, and the ratio of the height dimension of the reinforcing block in the vertical direction to the height dimension of the bottom frame in the vertical direction is set to 13 / 18~15 / 18.

[0012] In this embodiment of the utility model, the support frame further includes a dividing rib, which is disposed on the support grid plate and is used to block the lower end of the electrode plate in the second lateral direction.

[0013] And / or, the support frame also includes two partition baffles, which are respectively disposed on the upper ends of the two support grids. There is a placement opening between the two partition baffles that communicates with the placement cavity. A suction hole communicating with the placement opening is opened on the frame body at the position corresponding to the placement opening.

[0014] In this embodiment of the invention, the ratio of the thickness of the vertical support rib to the thickness of the horizontal support rib is set to 1.5 to 2.

[0015] In this embodiment of the invention, the ratio of the thickness of the vertical support rib to the thickness of the frame body in the second horizontal direction is set to 0.32~0.36.

[0016] To achieve the above objectives, this utility model also provides an electrochemical device, which includes the electrode support device described above.

[0017] Through the above technical solutions, the electrode support device and electrochemical equipment provided by this utility model embodiment have the following beneficial effects:

[0018] In the technical solution of this utility model, the electrode support device increases the overall structural strength of the support frame by setting a support grid plate with vertical and horizontal support ribs on the frame body. The vertical support ribs guide the electrode plate into the placement cavity, preventing the electrode plate from getting stuck or scratching the electrode plate surface coating during installation. Both the vertical and horizontal support ribs isolate the electrode plate and the diaphragm bag, effectively preventing direct contact between the electrode plate and the diaphragm bag from burning the bag. Furthermore, the thickness of the vertical support ribs is greater than that of the horizontal support ribs, which further improves the smoothness of guiding the electrode plate and enhances the isolation stability and reliability. This prevents scratches on the electrode plate surface coating and burning of the diaphragm bag, resulting in a uniform current distribution on the electrode plate surface, thereby reducing reaction energy consumption and improving the quality of the electrode sheet.

[0019] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0021] Figure 1 This is a schematic diagram of the assembly structure of the electrode plate support device and the electrode plate according to an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional structural schematic diagram of the electrode plate support device and the electrode plate according to an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the electrode plate support device according to an embodiment of the present invention from one perspective;

[0024] Figure 4 This is a schematic diagram of the electrode plate support device according to an embodiment of the present invention from another perspective;

[0025] Figure 5 yes Figure 4 Enlarged view of region A in the middle;

[0026] Figure 6 This is a partial structural schematic diagram of an electrode plate support device according to an embodiment of the present invention;

[0027] Figure 7 This is a cross-sectional structural schematic diagram of an electrode plate support device according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram showing the dimensions of the frame body and the supporting grid plate according to an embodiment of the present invention;

[0029] Figure 9 This is a structural schematic diagram of a positioning component according to an embodiment of the present utility model.

[0030] Explanation of reference numerals in the attached figures

[0031] Detailed Implementation

[0032] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0033] The electrode plate support device of this utility model is described below with reference to the accompanying drawings.

[0034] like Figures 1 to 7 As shown, this utility model provides an electrode plate support device, which includes a support frame 100. The support frame 100 includes a frame body 120 and a support grid plate 130. The support grid plate 130 is disposed on the frame body 120, and the frame body 120 and the support grid plate 130 form a placement cavity 110 for the electrode plate 300 to extend into. The support grid plate 130 includes a plurality of vertical support ribs 131 and a plurality of horizontal support ribs 132. The plurality of vertical support ribs 131 are spaced apart along a first horizontal direction, and the plurality of horizontal support ribs 132 are spaced apart along a vertical direction. The thickness of the vertical support ribs 131 in the second horizontal direction is greater than the thickness of the horizontal support ribs 132 in the second horizontal direction.

[0035] Specifically, the first horizontal direction is set as follows: Figure 1 and Figure 4 The left and right directions are shown, and the second horizontal direction is set as follows: Figure 1 and Figure 4 As shown in the front-back direction, vertical support ribs 131 extend vertically, and multiple vertical support ribs 131 are spaced apart in the left-right direction. Horizontal support ribs 132 extend horizontally, and multiple horizontal support ribs 132 are spaced apart in the up-down direction. The vertical support ribs 131 guide the electrode plate 300 into the placement cavity 110, preventing jamming or scratching of the electrode plate 300 coating during installation, thus improving the ease of electrode plate 300 installation. Furthermore, the thickness of the vertical support ribs 131 is greater than that of the horizontal support ribs 132, strengthening the structural strength of the support grid plate 130, improving the stability and reliability of the support for the electrode plate 300, effectively preventing deformation of the support frame 100. The increased thickness of the vertical support ribs 131 also serves to isolate the electrode plate 300 from the diaphragm bag, preventing direct contact between the diaphragm bag and the electrode plate 300, which could lead to bag burning.

[0036] It should be noted that scratches on the surface coating of electrode 300 during placement will increase the resistance of electrode 300, reduce electrolytic efficiency, and decrease the cathode deposition rate, thereby increasing operating time and power consumption. Furthermore, scratches on the electrode 300 coating will result in uneven current distribution on the surface, leading to granulation and reduced electrode quality. Additionally, direct contact between electrode 300 and the diaphragm bag fitted outside the support frame 100 can cause the diaphragm bag to burn. This burning leads to anolyte leakage and mixing of catholyte and anolyte. Since the anolyte has a higher acidity, the mixing of catholyte and anolyte will increase the acidity of the solution near the cathode. Increased hydrogen evolution at the cathode leads to porosity in the electrode, reducing its quality. Furthermore, hydrogen production consumes electrical energy, further increasing overall power consumption. Additionally, scratches to the 300 coating on the electrode plate cause the coating material to dissolve in the highly acidic anolyte, allowing titanium, lead, and other metal ions from the coating material to enter the anolyte. After the anode bag burns, these metal ions enter the cathode liquid, where they are deposited as impurities, reducing electrode purity and quality. The deposition of these impurities at the cathode also causes uneven current distribution, leading to granulation on the cathode plate. Severe granulation can even puncture the anode bag, exacerbating the aforementioned adverse effects.

[0037] The electrode support device of this utility model increases the overall structural strength of the support frame 100 by providing a support grid plate 130 with vertical support ribs 131 and horizontal support ribs 132 on the frame body 120. The vertical support ribs 131 guide the electrode 300 into the placement cavity 110, preventing the electrode 300 from getting stuck or scratching the electrode surface coating during installation. Both the vertical support ribs 131 and the horizontal support ribs 132 isolate the electrode 300 from the diaphragm bag, effectively preventing direct contact between the electrode 300 and the diaphragm bag, which could lead to bag burning. The thickness of the vertical support ribs 131 is greater than that of the horizontal support ribs 132, further improving the smoothness of guiding the electrode 300 and enhancing the isolation stability and reliability. This prevents scratches on the electrode surface coating and bag burning, resulting in a uniform current distribution on the electrode surface, thereby reducing reaction energy consumption and improving electrode quality.

[0038] In this embodiment of the utility model, the number of support grid plates 130 is set to two, and the two support grid plates 130 are arranged on the frame body 120 at a second lateral interval, and the placement cavity 110 is located between the two support grid plates 130.

[0039] Specifically, the two support grids 130 are both connected to the frame body 120 and are spaced apart in the front-to-back direction. A placement cavity 110 for accommodating the electrode plate 300 is formed between the two support grids 130. The support grids 130 serve to support the electrode plate 300, thereby improving the bending stiffness and structural strength of the support frame 100. Furthermore, the grid-shaped hollow arrangement of the support grids 130 can reduce the flow resistance of the electrolyte, accelerate the flow rate of the electrolyte, and improve the electrolytic electrowinning efficiency.

[0040] In this embodiment of the utility model, the electrode plate support device further includes a positioning member 200. The positioning member 200 passes through the support grid plate 130 and extends into the placement cavity 110 to abut against the electrode plate 300. Each support grid plate 130 is provided with a plurality of positioning members 200 arranged at intervals.

[0041] It should be noted that during the electrolysis reaction, the electrolytic cell contains multiple cathode plates and multiple anode plates. Each anode plate or cathode plate is prone to positional misalignment relative to other anode or cathode plates during installation into the electrolytic cell and during the electrolysis reaction. Improper alignment between multiple plates can lead to reduced current efficiency and increased energy loss. The electrode plate support device of this invention can be used to fix and install electrode plates 300 in electrochemical equipment to facilitate electrolysis reactions. The electrode plate 300 can be an anode plate or a cathode plate, and the electrolysis reaction includes electrolytic deposition, electrolytic refining, or electrolytic extraction. This invention does not limit the type of electrode plate 300 or the type of electrolysis reaction in the electrochemical equipment.

[0042] Specifically, a placement cavity 110 is formed within the support frame 100. The electrode plate 300 can extend into the placement cavity 110 so that the support grid 130 supports the electrode plate 300. The positioning member 200 passes through the support grid 130 from the outside and extends into the placement cavity 110 to abut against the electrode plate 300 located within the placement cavity 110. This serves to position and install the electrode plate 300 and fix the electrode plate 300 relative to the support grid 130, effectively limiting the displacement of the electrode plate 300 within the placement cavity 110, improving current transfer efficiency, reducing current loss, and thus improving the electrolysis reaction rate and electrolyte quantity. Furthermore, the electrode plate support device limits the displacement of the electrode plate 300 by abutting against the electrode plate 300 using the positioning member 200. The positioning member 200 is suitable for abutting against electrode plates 300 of various specifications, models, and sizes, exhibiting strong positioning adaptability and high versatility. Moreover, as... Figure 2 , Figures 5 to 7As shown, positioning elements 200 are provided on both support grid plates 130, so that the positioning elements 200 on the two support grid plates 130 can abut against the two sides of the electrode plate 300 respectively, thereby clamping the electrode plate 300 and improving positioning stability. In addition, multiple positioning elements 200 are provided on each support grid plate 130, and multiple positioning elements 200 can be used to abut against the electrode plate 300, further improving positioning stability. Moreover, the positioning elements 200 are multiple and spaced apart to be suitable for positioning electrode plates 300 of various specifications, models and sizes, which is highly adaptable and versatile.

[0043] In addition, it is understood that the electrochemical device includes multiple electrode support devices as described above. The number of electrode plates 300 is consistent with the number of electrode support devices and is set in a one-to-one correspondence. Each electrode plate 300 can be positioned and installed in the corresponding support frame 100 and displacement is restricted by the positioning member 200. This allows any two electrode plates 300 to be aligned with each other and effectively prevents any electrode plate 300 from shifting relative to other electrode plates 300, thereby improving current efficiency and optimizing electrolyte quantity.

[0044] In this embodiment of the utility model, the intersection of any vertical support rib 131 and any horizontal support rib 132 is set as an intersecting connection point 133, and the positioning member 200 is set through the intersecting connection point 133.

[0045] Specifically, such as Figures 1 to 7 As shown, the vertical support ribs 131 and the horizontal support ribs 132 are intersected and intersected to form intersecting connection points 133. Multiple intersecting connection points 133 are used for the positioning members 200 to pass through, so that multiple positioning members 200 can abut against and position the electrode plate 300, ensuring stable and reliable positioning and effectively preventing displacement of the electrode plate 300. In addition, the structural strength at the intersecting connection points 133 is high, ensuring the support stability of the support grid plate 130 on the electrode plate 300.

[0046] Furthermore, the ratio of the thickness of the vertical support rib 131 to the thickness of the horizontal support rib 132 is set to 1.5~2. For example... Figure 8 As shown, the thickness of the vertical support rib 131 is set as w1, and the thickness of the horizontal support rib 132 is set as w2. The ratio of w1 to w2 is less than 1.5, i.e., w1:w2<1.5, which will result in insufficient support strength of the vertical support rib 131, affecting the support stability. The ratio of w1 to w2 is greater than 2, i.e., w1:w2>2, which will result in the thickness of the placement cavity 110 being too small, which may cause the electrode plate 300 to get stuck or scratch the coating of the electrode plate 300. Setting the ratio of w1 to w2 to 1.5~2, i.e., w1:w2=1.5~2, can not only enhance the support stability of the electrode plate 300 and prevent the support frame 100 from deforming, but also guide the installation of the electrode plate 300, improving the ease of installation.

[0047] In this embodiment of the invention, the ratio of the thickness of the vertical support rib 131 to the thickness of the frame body 120 in the second horizontal direction is set to 0.32~0.36. Figure 8 As shown, vertical support ribs 131 are connected to the frame body 120, and the placement cavity 110 is located between the two support grid plates 130, such that the sum of the thickness of the two vertical support ribs 131 and the thickness of the placement cavity 110 is equal to the thickness of the frame body 120. The thickness of the frame body 120 is denoted as W. The ratio of w1 to W is less than 0.32, i.e., w1:W < 0.32. This will result in insufficient support strength of the vertical support ribs 131, affecting the stability of the support. Furthermore, a ratio of w1 to W greater than 0.36, i.e., w1:W>0.36, will result in an insufficient thickness of the placement cavity 110, which may cause the electrode plate 300 to become stuck or scratch its coating. Setting the ratio of w1 to W to 0.32~0.36, i.e., w1:W=0.32~0.36, can enhance the support stability of the electrode plate 300, prevent the support frame 100 from deforming, and also guide the installation of the electrode plate 300, thus improving the ease of installation. Furthermore, it is understandable that, since the number of support grid plates 130 is set to two, the sum of the thickness of the two vertical support ribs 131 and the thickness of the placement cavity 110 is equal to the thickness of the frame body 120. The ratio of the sum of the thickness of the two vertical support ribs 131 to the thickness of the frame body 120 is set to 0.64~0.72, that is, 2w1:W=0.64~0.72. This can not only enhance the support stability of the electrode plate 300 and prevent the support frame 100 from deforming, but also guide the installation of the electrode plate 300.

[0048] In this embodiment of the utility model, the support frame 100 further includes a reinforcing block 140, which is disposed in the placement cavity 110 and connected between two vertical support ribs 131 that are spaced apart along the second lateral direction; the frame body 120 includes a bottom frame 122 and two side frames 123, which are spaced apart along the first lateral direction at both ends of the bottom frame 122, and the ratio of the vertical height of the reinforcing block 140 to the vertical height of the bottom frame 122 is set to 13 / 18 to 15 / 18.

[0049] like Figure 2 and Figure 5As shown, a reinforcing block 140 is provided between any two vertical support ribs 131 spaced apart along the second horizontal direction. The reinforcing block 140 is connected to the lower end of the two vertical support ribs 131 spaced apart along the second horizontal direction, so that the reinforcing block 140 is located below the electrode plate 300 to avoid interference with the installation of the electrode plate 300. The reinforcing block 140 also increases the structural strength and rigidity, effectively preventing the support frame 100 from deforming and greatly improving the durability of the support frame 100. Furthermore, the two side frames 123 are respectively connected to the left and right ends of the bottom frame 122 to form a placement cavity 110. The reinforcing block 140 is located on the bottom frame 122 and inside the placement cavity 110. The ratio of the height of the reinforcing block 140 to the height of the bottom frame 122 is set to 13 / 18 to 15 / 18, which can both strengthen the structural strength and prevent interference with the installation of the electrode plate 300. The structure is stable and the design is reasonable. Furthermore, the height of the reinforcing block 140 in the vertical direction is set to 65mm~75mm, which ensures the structural strength of the support frame 100 and extends its service life.

[0050] In this embodiment of the invention, the support frame 100 further includes a dividing rib 150, which is disposed on the support grid plate 130 and is used to shield the lower end of the electrode plate 300 in the second lateral direction. Figure 1 , Figure 3 and Figure 5 As shown, the transverse support rib 132 extends along the first transverse direction, and when the electrode plate 300 is installed in the placement cavity 110, the projection area of ​​the partition rib 150 on the second transverse direction covers the lower end of the electrode plate 300, so as to separate the lower end of the electrode plate 300 and the diaphragm bag, preventing the diaphragm bag from directly contacting the electrode plate 300 and causing bag cutting or burning, thus improving the reliability of protection; and the partition rib 150 can be set as one of the transverse support ribs 132, or it can be set as a partition rib 150 independently connected to the support grid plate 130.

[0051] In this embodiment of the utility model, the support frame 100 further includes two partition baffles 160, which are respectively disposed on the upper ends of the two support grid plates 130. There is a placement opening 161 between the two partition baffles 160 that communicates with the placement cavity 110. A suction hole 121 communicating with the placement opening 161 is opened on the frame body 120 at the position corresponding to the placement opening 161.

[0052] like Figure 1 , Figure 4 and Figure 7As shown, two partition baffles 160 are both provided on the frame body 120 and are spaced apart in the front-to-back direction. A placement opening 161 is formed between the two partition baffles 160, allowing the electrode plate 300 to pass through the placement opening 161 and extend into the placement cavity 110. A suction hole 121 is provided on the frame body 120, which is provided corresponding to and connected to the placement opening 161. The suction hole 121 is used to draw in the gas generated by the electrolysis reaction. The partition baffles 160 act as a barrier to the electrolyte, preventing the electrolyte outside the diaphragm bag from being drawn into the diaphragm bag through the suction hole 121 and then drawn out from the suction hole 121. This reduces the flow rate of the electrolyte, allowing the electrolyte to slowly penetrate into the diaphragm bag and fully contact the electrode plate 300 for electrolysis, further improving the electrolysis efficiency and electrolyte quantity.

[0053] In this embodiment of the utility model, the positioning member 200 includes a knob part 210 and a screw part 220. The knob part 210 abuts against the side of the support grid plate 130 facing away from the placement cavity 110. One end of the screw part 220 is connected to the knob part 210. The screw part 220 passes through the support grid plate 130 and is threadedly connected to the support grid plate 130. The other end of the screw part 220 extends into the placement cavity 110 and abuts against the electrode plate 300.

[0054] like Figure 9 As shown, the knob 210 is used by the operator to screw the screw 220 onto the support frame 100. The knob 210 improves the ease of installation of the positioning component 200. Furthermore, the screw 220 and the support frame 100 are connected by threads, which has the advantages of stable and reliable connection as well as convenient and quick assembly and disassembly.

[0055] In this embodiment of the invention, the support frame 100 is made of fiberglass resin, epoxy resin, vinyl ester resin, or polypropylene. Specifically, the support frame 100 can be made of fiberglass resin, epoxy resin, vinyl ester resin, or polypropylene, which gives the support frame 100 the advantages of strong resistance to deformation, high structural strength, and high corrosion resistance, thus extending the service life of the support frame 100.

[0056] It should be noted that the support frame 100 in this application embodiment can be either integrally formed or modularly formed. The above example of integral forming is only used as an example and should not be construed as a limitation of this application.

[0057] In addition, this utility model also provides an electrochemical device, which includes an electrode support device according to the above description. The specific structure of the electrode support device is as described in the above embodiments. Since the electrochemical device adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0058] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electrode plate support device, characterized in that, The electrode support device includes a support frame (100), the support frame (100) comprising: Border body (120); A support grid plate (130) is disposed on the frame body (120), and the frame body (120) and the support grid plate (130) form a placement cavity (110) into which the electrode plate (300) extends. The support grid plate (130) includes a plurality of vertical support ribs (131) and a plurality of horizontal support ribs (132). The plurality of vertical support ribs (131) are spaced apart along a first horizontal direction, and the plurality of horizontal support ribs (132) are spaced apart along a vertical direction. The thickness of the vertical support ribs (131) in the second horizontal direction is greater than the thickness of the horizontal support ribs (132) in the second horizontal direction.

2. The electrode plate support device according to claim 1, characterized in that, The number of the support grid plates (130) is set to two, and the two support grid plates (130) are spaced apart on the frame body (120) along the second lateral direction, and the placement cavity (110) is located between the two support grid plates (130).

3. The electrode plate support device according to claim 2, characterized in that, The electrode plate support device further includes a positioning element (200), which passes through the support grid plate (130) and extends into the placement cavity (110) to abut against the electrode plate (300). Each support grid plate (130) is provided with a plurality of positioning elements (200) spaced apart.

4. The electrode plate support device according to claim 3, characterized in that, The intersection of any vertical support rib (131) and any horizontal support rib (132) is designated as an intersecting connection point (133), and the positioning member (200) is set through the intersecting connection point (133).

5. The electrode plate support device according to claim 3, characterized in that, The positioning component (200) includes a knob portion (210) and a screw portion (220). The knob portion (210) abuts against the side of the support grid plate (130) facing away from the placement cavity (110). One end of the screw portion (220) is connected to the knob portion (210). The screw portion (220) passes through the support grid plate (130) and is threadedly connected to the support grid plate (130). The other end of the screw portion (220) extends into the placement cavity (110) and abuts against the electrode plate (300).

6. The electrode plate support device according to claim 2, characterized in that, The support frame (100) further includes a reinforcing block (140), which is disposed in the placement cavity (110) and connected between two vertical support ribs (131) spaced apart along the second horizontal direction; the frame body (120) includes a bottom frame (122) and two side frames (123), which are spaced apart along the first horizontal direction at both ends of the bottom frame (122), and the ratio of the vertical height of the reinforcing block (140) to the vertical height of the bottom frame (122) is set to 13 / 18 to 15 / 18.

7. The electrode plate support device according to claim 2, characterized in that, The support frame (100) further includes a partition rib (150), which is disposed on the support grid plate (130) and is used to cover the lower end of the pole plate (300) in the second lateral direction; And / or, the support frame (100) further includes two partition baffles (160), the two partition baffles (160) are respectively disposed on the upper ends of the two support grid plates (130), and there is a placement opening (161) between the two partition baffles (160) that communicates with the placement cavity (110). A suction hole (121) communicating with the placement opening (161) is opened on the frame body (120) at the position corresponding to the placement opening (161).

8. The electrode plate support device according to any one of claims 1 to 7, characterized in that, The ratio of the thickness of the vertical support rib (131) to the thickness of the horizontal support rib (132) is set to 1.5~2.

9. The electrode plate support device according to any one of claims 1 to 7, characterized in that, The ratio of the thickness of the vertical support rib (131) to the thickness of the frame body (120) in the second horizontal direction is set to 0.32~0.

36.

10. An electrochemical device, characterized in that, The electrochemical device includes an electrode support device according to any one of claims 1 to 9.

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