CN211741151U - Double-liquid-area double-opening electrochemical testing device - Google Patents
Double-liquid-area double-opening electrochemical testing device Download PDFInfo
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- CN211741151U CN211741151U CN202020199474.4U CN202020199474U CN211741151U CN 211741151 U CN211741151 U CN 211741151U CN 202020199474 U CN202020199474 U CN 202020199474U CN 211741151 U CN211741151 U CN 211741151U
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Abstract
A double-liquid-area double-opening electrochemical testing device relates to a novel electrochemical testing device. The electrochemical testing device aims to solve the problems that the process of replacing a sample wafer is complex and the concentration of electrolyte is easy to change. One side in the testing device main body is a testing area, the other side is a liquid storage area, and the height of a top plate of the liquid storage area is greater than that of the top plate of the testing area; the top plate of the test area is provided with an upper opening and an upper cover plate; one side plate of the test area is provided with a side opening and a side cover plate; an electrode fixing frame is arranged in the testing area, and a plurality of L-shaped notches are arranged on one exposed side edge of the electrode fixing frame. The utility model discloses only need lift test area one side when the device is changed the test sample piece, electrolyte in the test area flow in after stock solution district and the evacuation alright in order to change the test sample piece, the operation is more simple and convenient. The cover plate is arranged at each opening of the device, so that the concentration of the electrolyte for testing is not changed in the long-term soaking process. The utility model is suitable for an electrochemistry test.
Description
Technical Field
The utility model relates to a novel electrochemistry testing arrangement.
Background
The electrochemical test has wide application in the fields of batteries, capacitors, electrolysis, electroplating, metallurgy, corrosion, coatings, pharmacy and the like, and plays an important role in industrial and agricultural production, new material development, new energy, environmental protection monitoring, military and national defense construction. Electrochemical test contents comprise alternating current impedance, a polarization curve, cyclic voltammetry, open-circuit potential, pulse plating, charging and discharging and the like, and most tests need to use an electrolyte solution, a working electrode, a reference electrode, a counter electrode and the like; therefore, the electrochemical test device is very critical in various electrochemical tests, and determines the effect of the electrochemical test and the accuracy of electrochemical parameters.
Currently, working electrodes (test objects) used for electrochemical tests are mainly of two types: the electrode combination testing device for packaging the electrodes and the test sample wafer and carrying out electrochemical testing on the two types of electrodes is different.
The encapsulated electrodes are metal electrodes encapsulated by polytetrafluoroethylene, epoxy resin and the like, the exposed metal areas of the metal electrodes are fixed, some encapsulated electrodes are coated with coatings, and lead-out wires on the encapsulated electrodes are used for connecting test equipment. For such electrodes, electrochemical test equipment manufacturers generally provide electrode holders for testing, but because of different types of reference electrodes, counter electrodes and the like, working electrodes have different shapes, and the problem of inconvenient combination and installation exists. Moreover, the existing test pool for containing electrolyte solution is mostly an open container, and when the container is used for soaking for a long time, the concentration of the electrolyte is easy to change, so that the test result is influenced.
The test sample wafer refers to a thin sheet metal electrode which is not packaged and can be directly used for testing, the surface of some test sample wafers needs to be treated or coated, and the like, and the test electrode area of the test sample wafer is determined by a test device. The test of the test piece is generally performed in a test cell with an opening at the bottom, and the test piece is fixed at the bottom of the test cell and leads out. The device is suitable for sample wafers with various sizes, and is widely applied. However, when the sample wafer is replaced, the electrolyte in the test cell must be discharged, the operation process is complex, the electrolyte has influence on a working electrode, a reference electrode, a counter electrode and the like, the test device is also polluted and rusted, and the test device is not suitable for long-term soaking.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that present electrochemistry testing arrangement change sample wafer process complicated and the concentration of electrolyte easily changes, provide a two liquid district dual-opening electrochemistry testing arrangement.
The main body of the double-liquid-area double-opening electrochemical testing device is a transparent hollow cube, one side in the main body of the testing device is a testing area, the other side in the main body of the testing device is a liquid storage area, and the height of a top plate of the liquid storage area is greater than that of the top plate of the testing area; a circular upper opening is formed in a top plate of the test area, and an upper cover plate is arranged on the upper opening; one side plate of the test area is provided with a round side opening, and a side cover plate is arranged outside the side opening; an electrode fixing frame is arranged in the testing area, the electrode fixing frame is a rectangular flat plate, and one group of opposite side edges in the electrode fixing frame are fixedly connected with the inner wall of the testing area; a plurality of L-shaped notches are arranged on one exposed side edge of the electrode fixing frame.
The utility model discloses principle and beneficial effect do:
1. in the device, the testing area is communicated with the liquid storage area, so that when one side of the testing area is raised, the device is inclined towards the direction of the liquid storage area, and the electrolyte in the testing area can flow into the liquid storage area; the volume in storing up the liquid district is greater than the test area, therefore the storing up the liquid district can hold whole electrolyte that comes from in the test area, and after the electrolyte in the test area was whole to be discharged to the storing up liquid district, keep the test area to be higher than the storage area, alright change test sample piece, the operation is more simple and convenient.
2. The utility model discloses the device adopts the design of two liquid districts bianchs, divide into test area and liquid storage district with the device on traditional device basis that is used for the electrochemistry test, has increased the electrode mount in the test area, and test area upper shed and side opening are provided with the apron respectively, can satisfy multiple test requirements such as multielectrode, many systems, soak for a long time.
3. The utility model discloses each opening of device has all set up the apron, consequently fixed sealing in non-test period guarantees that encapsulation electrode, sample wafer and coating are not changed at the concentration of soaking test electrolyte of in-process test for a long time, satisfies the experiment needs of test electrochemistry parameter along with soaking time variation.
4. In the device of the utility model, the L-shaped notch arranged on the electrode fixing frame is used as the fixing slot of the electrode; the size and location of the L-shaped notch can be selected or adjusted depending on the requirements of the electrochemical test and the type of electrode used. After the electrode is placed into the testing device from the open end of the L-shaped notch, the L-shaped notch can ensure that the electrode does not depart from the electrode fixing frame when the testing device inclines, and the smooth proceeding of the test is ensured. The number of the L-shaped notches on the electrode fixing frame is generally 3-4, and the width of each L-shaped notch can be set or selected according to the size of the mounted electrode.
Drawings
FIG. 1 is a vertical cross-sectional view of a two-fluid zone two-opening electrochemical test device in example 1, in which a is a test sample;
fig. 2 is a transverse cross-sectional view of a two-fluid zone, two-opening electrochemical test device of example 1.
Detailed Description
The technical scheme of the utility model is not limited to the specific implementation modes listed below, and also comprises any reasonable combination between the specific implementation modes.
The first embodiment is as follows: the main body of the double-liquid-area double-opening electrochemical testing device is a transparent hollow cube, one side in the main body of the testing device is a testing area 1, the other side in the main body of the testing device is a liquid storage area 2, and the height of a top plate of the liquid storage area 2 is larger than that of the top plate of the testing area 1; a circular upper opening 4 is formed in the top plate of the test area 1, and an upper cover plate 5 is arranged on the upper opening 4; a round side opening 7 is formed in one side plate of the test area 1, and a side cover plate 8 is arranged outside the side opening 7; an electrode fixing frame 3 is arranged in the testing area 1, the electrode fixing frame 3 is a rectangular flat plate, and one group of opposite side edges in the electrode fixing frame 3 are fixedly connected with the inner wall of the testing area 1; a plurality of L-shaped notches are arranged on one exposed side edge of the electrode fixing frame 3.
1. In the device of the embodiment, because the test area 1 is communicated with the liquid storage area 2, when one side of the test area 1 is lifted, the device inclines towards the direction of the liquid storage area 2, and electrolyte in the test area 1 can flow into the liquid storage area 2; the volume of liquid storage area 2 is greater than test area 1, therefore liquid storage area 2 can hold whole electrolyte that comes from in test area 1, and the electrolyte in test area 1 is discharged to back liquid storage area 2, and afterwards, alright in order to change the test sample piece, and the operation is more simple and convenient.
2. This embodiment device adopts two opening designs in two liquid districts, divides the device into test area 1 and stock solution district 2 on traditional device basis that is used for the electrochemistry test, has increased electrode mount 3 in the test area 1, and opening 4 and side opening 7 are provided with the apron respectively on the test area 1, can satisfy multiple test requirements such as many electrodes, many systems, long-term soaking.
3. The cover plate is arranged at each opening of the device in the embodiment, so that the sealing is fixed and sealed in a non-testing period, the concentration of the electrolyte for testing is not changed in the long-term soaking process of the packaged electrode, the sample wafer and the coating, and the experimental requirement that the electrochemical parameters are changed along with the soaking time is met.
4. In the device of the embodiment, an L-shaped notch arranged on an electrode fixing frame 3 is used as a fixing clamping groove of an electrode; the size and location of the L-shaped notch can be selected or adjusted depending on the requirements of the electrochemical test and the type of electrode used. After the electrode is placed into the testing device from the open end of the L-shaped notch, the L-shaped notch can ensure that the electrode does not depart from the electrode fixing frame 3 when the testing device inclines, and the smooth proceeding of the test is ensured. The number of the L-shaped notches on the electrode fixing frame 3 is generally 3-4, and the width of each L-shaped notch can be set or selected according to the size of the mounted electrode.
The second embodiment is as follows: the first difference between the present embodiment and the specific embodiment is: the side cover plate 8 is connected with the side plate of the test area 1 through a bolt 11.
The third concrete implementation mode: the first difference between the present embodiment and the specific embodiment is: the upper cover plate 5 is connected with the top plate of the test area 1 through a lock catch 10, one end of the lock catch 10 is hinged with the top plate of the test area 1, and the other end of the lock catch 10 is fastened on the outer edge of the upper cover plate 5.
The fourth concrete implementation mode: the first difference between the present embodiment and the specific embodiment is: a first sealing ring 6 is arranged between the upper cover plate 5 and the top plate of the test area 1, and the inner diameter of the first sealing ring 6 is the same as the diameter of the upper opening 4.
The fifth concrete implementation mode: the first difference between the present embodiment and the specific embodiment is: and a second sealing ring 9 is arranged between the side cover plate 8 and the side plate of the test area 1, and the inner diameter of the second sealing ring 9 is the same as the diameter of the side opening 7.
The sixth specific implementation mode: the first difference between the present embodiment and the specific embodiment is: the volume of the liquid storage area 2 is 2-3 times of that of the test area 1.
Example 1: in the embodiment, a main body (made of PMMA) of the double-liquid-area double-opening electrochemical testing device is a transparent hollow cube, one side in the main body of the testing device is a testing area 1, the other side in the main body of the testing device is a liquid storage area 2, and the height of a top plate of the liquid storage area 2 is greater than that of the top plate of the testing area 1; a circular upper opening 4 is formed in the top plate of the test area 1, and an upper cover plate 5 is arranged on the upper opening 4; a round side opening 7 is formed in one side plate of the test area 1, and a side cover plate 8 is arranged outside the side opening 7; an electrode fixing frame 3 is arranged in the testing area 1, the electrode fixing frame 3 is a rectangular flat plate, and one group of opposite side edges in the electrode fixing frame 3 are fixedly connected with the inner wall of the testing area 1; one exposed side edge of the electrode fixing frame 3 is provided with 4L-shaped notches;
the side cover plate 8 is connected with a side plate of the test area 1 through a bolt 11; the upper cover plate 5 is connected with the top plate of the test area 1 through a lock catch 10, one end of the lock catch 10 is hinged with the top plate of the test area 1, and the other end of the lock catch 10 is fastened on the outer edge of the upper cover plate 5; a first sealing ring 6 is arranged between the upper cover plate 5 and the top plate of the test area 1, and the inner diameter of the first sealing ring 6 is the same as the diameter of the upper opening; a second sealing ring 9 is arranged between the side cover plate 8 and the side plate of the test area 1, and the inner diameter of the second sealing ring 9 is the same as the diameter of the side opening 7; the volume of the liquid storage area 2 is 2 times that of the test area 1.
When the electrochemical test of the encapsulated electrode is carried out, the opening 7 at the side of the test pool is sealed, electrolyte (NaCl aqueous solution and the like) for test is injected through the upper opening 4, and an encapsulated electrode (working electrode), a reference electrode and a counter electrode are placed in the L-shaped gap of the electrode fixing frame 3, wherein the encapsulated electrode (working electrode), the reference electrode and the counter electrode are placed into the device through the upper opening 4; the electrochemical test can be carried out after the electrodes are respectively connected to test equipment such as an electrochemical workstation.
When the electrochemical test of the test sample is carried out, the test sample (working electrode) is arranged on the side opening 7, a second sealing ring 9 is arranged between the test sample and the side opening 7, and the side cover plate 8 is pressed tightly by a bolt; at the moment, the exposed part of the test sample in the test device is the same as the side opening 7; electrolyte NaCl aqueous solution for testing and the like is injected through the upper opening 4, a reference electrode and a counter electrode are placed in the L-shaped gap of the electrode fixing frame 3, and the electrodes are respectively connected to testing equipment such as an electrochemical workstation and the like so as to carry out electrochemical testing.
When the device of the embodiment is used for replacing the test sample, only one side of the test area 1 needs to be lifted, and the electrolyte in the test area 1 can be replaced by the device after flowing into the liquid storage area 2, so that the operation is simpler and more convenient. The cover plates are arranged at the openings of the device, so that the device is fixedly sealed in a non-testing period, the concentration of the electrolyte for testing the packaged electrode, the sample wafer and the coating in the long-term soaking process is ensured not to change, and the experimental requirement that the electrochemical parameters are tested to change along with the soaking time is met. The width of each L-shaped notch in the electrode holder 3 can be set or selected according to the size of the electrode to be mounted.
Claims (6)
1. The utility model provides a two liquid district two opening electrochemistry testing arrangement which characterized in that: the main body of the testing device is a transparent hollow cube, one side in the main body of the testing device is a testing area (1), the other side in the main body of the testing device is a liquid storage area (2), and the height of a top plate of the liquid storage area (2) is greater than that of the top plate of the testing area (1); a circular upper opening (4) is formed in a top plate of the test area (1), and an upper cover plate (5) is arranged on the upper opening (4); a round side opening (7) is formed in one side plate of the test area (1), and a side cover plate (8) is arranged outside the side opening (7); an electrode fixing frame (3) is arranged in the testing area (1), the electrode fixing frame (3) is a rectangular flat plate, and one group of opposite side edges in the electrode fixing frame (3) are fixedly connected with the inner wall of the testing area (1); a plurality of L-shaped notches are arranged on one exposed side edge of the electrode fixing frame (3).
2. The dual fluid zone dual opening electrochemical test device of claim 1, wherein: the side cover plate (8) is connected with a side plate of the test area (1) through a bolt (11).
3. The dual fluid zone dual opening electrochemical test device of claim 1, wherein: the upper cover plate (5) is connected with the top plate of the test area (1) through a lock catch (10), one end of the lock catch (10) is hinged with the top plate of the test area (1), and the other end of the lock catch (10) is fastened on the outer edge of the upper cover plate (5).
4. The dual fluid zone dual opening electrochemical test device of claim 1, wherein: a first sealing ring (6) is arranged between the upper cover plate (5) and the top plate of the test area (1), and the inner diameter of the first sealing ring (6) is the same as the diameter of the upper opening.
5. The dual fluid zone dual opening electrochemical test device of claim 1, wherein: and a second sealing ring (9) is arranged between the side cover plate (8) and the side plate of the test area (1), and the inner diameter of the second sealing ring (9) is the same as the diameter of the side opening (7).
6. The dual fluid zone dual opening electrochemical test device of claim 1, wherein: the volume of the liquid storage area (2) is 2-3 times of that of the test area (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020199474.4U CN211741151U (en) | 2020-02-20 | 2020-02-20 | Double-liquid-area double-opening electrochemical testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020199474.4U CN211741151U (en) | 2020-02-20 | 2020-02-20 | Double-liquid-area double-opening electrochemical testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211741151U true CN211741151U (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020199474.4U Expired - Fee Related CN211741151U (en) | 2020-02-20 | 2020-02-20 | Double-liquid-area double-opening electrochemical testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211741151U (en) |
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2020
- 2020-02-20 CN CN202020199474.4U patent/CN211741151U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201023 |