Electrochemical test working electrode fixture

Abstract

The application relates to the technical field of clamps for electrochemical test working electrodes, in particular to a fixing clamp for electrochemical test working electrodes, which comprises a first clamping plate and a second clamping plate, the cross sections of the first clamping plate and the second clamping plate are all in the shape of a cube, the first clamping plate is located above the second clamping plate, the first clamping plate comprises a working electrode placing groove, an electrolyte flow-through hole and a first connecting conductor placing groove, the first connecting conductor placing groove is arranged from the central part of the bottom of the first clamping plate to one end face, a working electrode placing groove in the shape of a square is arranged in the middle of the first clamping plate, the working electrode placing groove is provided with the electrolyte flow-through hole above the working electrode placing groove. The application has the advantages of simple structure, convenient operation, low cost, high practicability, can meet the diversification of electrochemical tests, can be recycled and can reduce the cost.

Description

Technical Field

[0001] This invention relates to the field of fixtures for working electrodes in electrochemical testing, specifically a fixing fixture for working electrodes in electrochemical testing. Background Technology

[0002] In the field of electrochemical testing, when testing the electrochemical performance of working electrodes, it is usually necessary to fix the electrodes with clamps. Since aqueous electrolytes are usually acidic or alkaline systems, the clamps must be corrosion-resistant to meet the standards for long-term use.

[0003] Traditional fixtures used for electrochemical testing lack long-term durability and are mostly one-piece designs, failing to meet the diverse needs of electrochemical testing. Detachable fixtures can not only meet the diverse needs of electrochemical testing but also be recycled, reducing costs. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a fixture for electrochemical testing working electrodes that is corrosion-resistant over a long period and can be flexibly disassembled. This invention can meet the diverse needs of electrochemical testing; on the other hand, it can be recycled, reducing costs.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a fixing clamp for an electrochemical testing working electrode, including a first clamp and a second clamp, wherein the cross-section of the first clamp and the second clamp are both cubic structures, and the first clamp is located above the second clamp.

[0006] The first clamping plate includes a working electrode placement groove, an electrolyte flow hole, and a first connecting conductor placement groove. The first connecting conductor placement groove is formed from the center of the bottom of the first clamping plate to one end face. The working electrode placement groove with a square structure is provided in the middle of the first clamping plate, and an electrolyte flow hole is provided above the working electrode placement groove.

[0007] The second clamping plate has a second connecting conductor placement groove adapted to the first connecting conductor placement groove from the center of the bottom to one end face, and the first connecting conductor placement groove is located directly above the second connecting conductor placement groove. A connecting conductor is sleeved between the first connecting conductor placement groove and the second connecting conductor placement groove.

[0008] Bolt fixing holes are provided at the four corner edges of the first and second clamping plates, and fixing bolts are installed through the bolt fixing holes. The fixing bolts, fastening washers and fastening nuts are made of polytetrafluoroethylene.

[0009] A further technical improvement of the present invention is that a fastening washer is sleeved below the fixing bolt, and a fastening nut is threadedly connected below the fixing bolt.

[0010] A further technical improvement of the present invention is that the connecting conductor is a copper plate or a graphite plate.

[0011] A further technical improvement of the present invention is that: the working electrode placement groove is connected to the first connecting conductor placement groove, and the upper surface of the working electrode placement groove is flush with the upper surface of the first connecting conductor placement groove.

[0012] A further technical improvement of the present invention is that the diameter of the electrolyte flow hole is half the side length of the working electrode placement groove.

[0013] A further technical improvement of the present invention is that the sum of the depths of the first connecting conductor placement groove and the second connecting conductor placement groove is equal to the thickness of the connecting conductor, and the cube working electrode placement groove at the center of the first clamping plate is slightly smaller in size than the working electrode.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This invention has a simple structure, is easy to operate, has low cost, and is highly practical. On the one hand, it can meet the diverse needs of electrochemical testing; on the other hand, it can be recycled, reducing costs. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is an exploded view of the three-dimensional structure of the present invention.

[0019] Figure 3 This is an isometric side view of the first clamping plate of the present invention.

[0020] Figure 4 This is an isometric side view of the second clamping plate.

[0021] In the diagram: 1. First clamping plate; 2. Second clamping plate; 3. Working electrode placement groove; 4. Electrolyte flow hole; 5. First connecting conductor placement groove; 6. Second connecting conductor placement groove; 7. Bolt fixing hole; 8. Connecting conductor; 9. Fixing bolt; 10. Fastening washer; 11. Fastening nut. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] Example

[0024] like Figures 1-4As shown, a fixing fixture for an electrochemical testing working electrode according to the present invention includes a first clamping plate 1 and a second clamping plate 2. The cross-section of the first clamping plate 1 and the second clamping plate 2 is a cubic structure with length, width and height dimensions of 3cm*3cm*4.5mm, and the first clamping plate 1 is located above the second clamping plate 2.

[0025] The first clamping plate 1 includes a working electrode placement groove 3, an electrolyte flow hole 4, and a first connecting conductor placement groove 5. The working electrode placement groove 3 has a size of 1cm*1cm*3mm, the electrolyte flow hole 4 has a size of φ5mm, the first connecting conductor placement groove 5 is opened from the center of the bottom of the first clamping plate 1 to one end face, and the working electrode placement groove 3 with a square structure is provided in the middle of the first clamping plate 1, and the electrolyte flow hole 4 is provided above the working electrode placement groove 3.

[0026] The bottom center of the second clamping plate 2 has a second connecting conductor placement groove 6 that matches the first connecting conductor placement groove 5. The first connecting conductor placement groove 5 is located directly above the second connecting conductor placement groove 6. A connecting conductor 8 is sleeved between the first connecting conductor placement groove 5 and the second connecting conductor placement groove 6. The size of the connecting conductor 8 is 1cm*1cm*2mm.

[0027] Bolt fixing holes 7 are provided at the four corner edges of the first clamping plate 1 and the second clamping plate 2, and fixing bolts 9 are installed through the bolt fixing holes 7. The fixing bolts 9, fastening washers 10 and fastening nuts 11 are made of polytetrafluoroethylene.

[0028] In one optional embodiment of the present invention, a fastening washer 10 is sleeved below the fixing bolt 9, and a fastening nut 11 is threadedly connected below the fixing bolt 9.

[0029] In one optional embodiment of the present invention, the connecting conductor 8 is a copper plate or a graphite plate.

[0030] In one optional embodiment of the present invention, the working electrode placement groove 3 is connected to the first connecting conductor placement groove 5, and the upper surface of the working electrode placement groove 3 is flush with the upper surface of the first connecting conductor placement groove 5.

[0031] In one optional embodiment of the present invention, the diameter of the electrolyte flow hole 4 is half the side length of the working electrode placement groove 3.

[0032] In one optional embodiment of the present invention, the sum of the depths of the first connecting conductor placement groove 5 and the second connecting conductor placement groove 6 is equal to the thickness of the connecting conductor 8, and the cube working electrode placement groove 3 at the center of the first clamping plate 1 has a size equal to or slightly smaller than that of the working electrode.

[0033] In use, the porous carbon material is cut into a 1cm*1cm*4mm shape and placed in the working electrode placement groove 3, with dimensions of 1cm*1cm*3mm. The connecting conductor 8 is placed on the side facing away from the electrolyte flow hole 4, on the back of the porous carbon material electrode, and is tightly fitted to the porous carbon material. The upper end of the connecting conductor 8 is placed in the first connecting conductor placement groove 5. After the second clamping plate 2 is fastened to the first clamping plate 1, the first connecting conductor placement groove 5 and the second connecting conductor placement groove 6 are combined into a cavity for placing the connecting conductor 8. The thickness of the porous carbon material is slightly higher than the depth of the placement groove. The connecting conductor 8 is placed in the grooves 5 and 6, and the lower end of the connecting conductor 8 is tightly fitted to the porous carbon material. By compacting, the porous carbon material is fixed on one hand, and it also serves as a conductor to connect to the external test power supply on the other hand. After the connecting conductor 8 is compacted against the porous carbon material, the first clamping plate 1 and the second clamping plate 2 are fastened, and the four corners are fixed in sequence by PTFE fixing bolts 9, fastening washers 10, and fastening nuts 11.

[0034] This invention has a simple structure, is easy to operate, has low cost, and is highly practical. On the one hand, it can meet the diverse needs of electrochemical testing; on the other hand, it can be recycled, reducing costs.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing fixture for an electrochemical testing working electrode, characterized in that: It includes a first clamping plate (1) and a second clamping plate (2), both of which have a cubic cross-section, and the first clamping plate (1) is located above the second clamping plate (2). The first clamping plate (1) includes a working electrode placement groove (3), an electrolyte flow hole (4), and a first connecting conductor placement groove (5). The first connecting conductor placement groove (5) is opened from the center of the bottom of the first clamping plate (1) to one end face. The working electrode placement groove (3) with a square structure is provided in the middle of the first clamping plate (1), and the electrolyte flow hole (4) is provided above the working electrode placement groove (3). The second clamp (2) has a second connecting conductor placement groove (6) adapted to the first connecting conductor placement groove (5) from the bottom center to one end face, and the first connecting conductor placement groove (5) is located directly above the second connecting conductor placement groove (6). A connecting conductor (8) is sleeved between the first connecting conductor placement groove (5) and the second connecting conductor placement groove (6). Bolt fixing holes (7) are provided at the four corner edges of the first clamping plate (1) and the second clamping plate (2), and fixing bolts (9) are installed through the bolt fixing holes (7).

2. The fixing fixture for an electrochemical testing working electrode according to claim 1, characterized in that: A fastening washer (10) is fitted under the fixing bolt (9), and a fastening nut (11) is threaded onto the fixing bolt (9).

3. The fixing fixture for an electrochemical testing working electrode according to claim 2, characterized in that: The connecting conductor (8) is a copper plate or a graphite plate.

4. The fixing fixture for an electrochemical testing working electrode according to claim 1, characterized in that: The working electrode placement groove (3) is connected to the first connecting conductor placement groove (5), and the upper surface of the working electrode placement groove (3) is flush with the upper surface of the first connecting conductor placement groove (5).

5. A fixing fixture for an electrochemical testing working electrode according to claim 1, characterized in that: The diameter of the electrolyte flow hole (4) is half the side length of the working electrode placement groove (3).

6. A fixing fixture for an electrochemical testing working electrode according to claim 3, characterized in that: The sum of the depths of the first connecting conductor placement groove (5) and the second connecting conductor placement groove (6) is equal to the thickness of the connecting conductor (8).

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