Battery testing mold

Abstract

The utility model relates to a battery test mould, the battery test mould includes: base, electrode subassembly, pressure maintaining mechanism, be equipped with the collection chamber that is used for installing battery in the base, the collection chamber passes through the base along the first direction, the electrode subassembly includes first electrode and second electrode, the pressure maintaining mechanism is equipped with pressure maintaining mechanism, the pressure maintaining mechanism is equipped with pressure maintaining mechanism. The first electrode and the second electrode are arranged on the two sides of the collecting cavity in the first direction respectively and are both connected with the collecting cavity in a sealed mode, and one of the first electrode and the second electrode is provided with a gas leading-in channel and a gas leading-out channel; the gas leading-in channel and the gas leading-out channel are both communicated with the collecting cavity, a clamping cavity is formed in the pressure maintaining mechanism, the electrode assembly is installed in the clamping cavity, and the pressure maintaining mechanism is used for providing extrusion force for the first electrode and the second electrode to be close to each other.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, specifically to a battery testing mold. Background Technology

[0002] In-situ differential electrochemical mass spectrometry (DEMS) is an instrument that couples an electrochemical reaction cell with a mass spectrometer to perform qualitative or quantitative analysis of electrochemical reaction gases, volatile intermediates, and final products within milliseconds during the electrochemical reaction process. In the use of in-situ DEMS, the gases produced by the electrochemical reaction within the battery test mold need to be introduced into the mass spectrometer for measurement and analysis. In related technologies, the structural design of the battery test mold is often unreasonable, resulting in problems such as poor electrical contact and inadequate sealing. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose a battery testing mold with a reasonable structural design and good electrical contact and sealing effects.

[0005] The battery testing mold of this utility model includes: a base, wherein the base has a collection cavity for mounting a battery, the collection cavity extending through the base along a first direction; an electrode assembly, the electrode assembly including a first electrode and a second electrode, the first electrode and the second electrode being respectively arranged on both sides of the collection cavity along the first direction and both being sealed to the collection cavity, one of the first electrode and the second electrode having a gas inlet channel and a gas outlet channel, both of which are in communication with the collection cavity; and a pressure holding mechanism, wherein the pressure holding mechanism has a clamping cavity, the electrode assembly being installed in the clamping cavity, and the pressure holding mechanism being used to provide a squeezing force to the first electrode and the second electrode to bring them closer together.

[0006] According to the battery testing mold of this utility model, since both the first and second electrodes are sealed to the collection chamber to ensure the sealing of the collection chamber, when the battery undergoes an electrochemical reaction in the collection chamber, the reaction gas can be introduced to an external mass spectrometer for detection through the gas inlet and outlet channels, thereby improving the accuracy of the test. Furthermore, since the pressure maintaining mechanism can provide a squeezing force to bring the first and second electrodes closer together, the reliability of the contact between the first and second electrodes and the battery can be improved, reducing the problem of poor electrical contact between the electrodes and the battery. Therefore, the battery testing mold of this utility model has a reasonable structural design, good electrical contact and sealing effects, and is conducive to improving the accuracy of battery testing.

[0007] In some embodiments, the battery testing mold further includes a first insulating sheet and a second insulating sheet, wherein the first insulating sheet is disposed between the first electrode and the inner wall of the clamping cavity, and the second insulating sheet is disposed between the second electrode and the inner wall of the clamping cavity.

[0008] In some embodiments, the battery test mold further includes a locking sleeve and an elastic first seal, the first seal being disposed between the first electrode and the inner wall of the acquisition chamber, the locking sleeve being sleeved over the first electrode and capable of pressing the first seal toward the first seal.

[0009] In some embodiments, the collection cavity includes a collection section and a first sealing section, the first sealing section being in communication with the collection section, the inner diameter of the first sealing section being larger than the inner diameter of the collection section, such that a stepped surface is formed at one end of the first sealing section adjacent to the collection section, the first sealing member being disposed on the stepped surface, and the locking sleeve being threadedly engaged with the first sealing section and abutting against the first sealing member.

[0010] In some embodiments, the acquisition cavity further includes a second sealing section, which communicates with the acquisition section and is located on the side of the acquisition section away from the first sealing section. The battery test mold further includes an elastic second sealing member, which is located between the second electrode and the second sealing section.

[0011] In some embodiments, the outer peripheral wall of the second electrode is provided with a mounting groove, and the second seal is annular and sleeved in the mounting groove.

[0012] In some embodiments, the gas inlet channel and the gas outlet channel are disposed on the first electrode, and the battery test mold further includes a porous metal sheet abutting between the first electrode and the battery.

[0013] In some embodiments, either the gas inlet channel or the gas outlet channel has a threaded section at one end away from the collection chamber, and the battery test mold further includes a gas path adapter, which is mounted on the threaded section.

[0014] In some embodiments, the pressure holding mechanism includes a first pressure plate, a second pressure plate, and an adjusting member. The first pressure plate and the second pressure plate are arranged at a distance along the first direction to define the clamping cavity. The adjusting member is connected to the first pressure plate and the second pressure plate to adjust the distance between the first pressure plate and the second pressure plate.

[0015] In some embodiments, the adjusting member includes a threaded rod and a clamping nut, the threaded rod passing through the first pressure plate and the second pressure plate, the clamping nut being fitted onto the threaded rod, and the clamping nut abutting against one of the first pressure plate and the second pressure plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a battery testing mold according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the installation of the electrode assembly and base of the battery testing mold according to an embodiment of the present invention.

[0018] Figure 3 This is a cross-sectional view of a component of the battery testing mold according to an embodiment of this utility model.

[0019] Figure 4 This is a schematic diagram of the first electrode of the battery test mold according to an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the second electrode and the second seal of the battery test mold according to an embodiment of the present invention.

[0021] Figure label:

[0022] 1. Base; 11. Acquisition chamber; 111. First sealing section; 112. Second sealing section; 113. Acquisition section;

[0023] 2. Electrode assembly; 21. First electrode; 211. Gas inlet channel; 212. Gas outlet channel; 213. Threaded section; 22. Second electrode; 221. Mounting slot; 23. Wire insertion hole;

[0024] 3. Pressure holding mechanism; 31. First pressure plate; 32. Second pressure plate; 33. Adjusting component; 331. Threaded rod; 312. Compression nut;

[0025] 41. First insulating sheet; 42. Second insulating sheet;

[0026] 51. Locking sleeve; 52. First seal; 53. Second seal;

[0027] 6. Porous metal sheet;

[0028] 7. Gas line adapter. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] The following is a reference appendix. Figures 1 to 5 This invention describes a battery testing mold according to an embodiment of the present invention.

[0031] like Figures 1 to 5 As shown, the battery testing mold of this utility model embodiment includes: a base 1, an electrode assembly 2, and a pressure holding mechanism 3. The base 1 is provided with a collection cavity 11 for installing the battery. The collection cavity 11 penetrates the base 1 along a first direction. The electrode assembly 2 includes a first electrode 21 and a second electrode 22. The first electrode 21 and the second electrode 22 are respectively arranged on both sides of the collection cavity 11 along the first direction and are both sealed to the collection cavity 11. One of the first electrode 21 and the second electrode 22 is provided with a gas inlet channel 211 and a gas outlet channel 212. The gas inlet channel 211 and the gas outlet channel 212 are both connected to the collection cavity 11. The pressure holding mechanism 3 is provided with a clamping cavity. The electrode assembly 2 is installed in the clamping cavity. The pressure holding mechanism 3 is used to provide a squeezing force to the first electrode 21 and the second electrode 22 to bring them closer together.

[0032] According to the battery testing mold of this utility model, since both the first electrode 21 and the second electrode 22 are sealed to the collection chamber 11 to ensure the sealing of the collection chamber 11, when the battery undergoes an electrochemical reaction in the collection chamber 11, the reaction gas can be introduced to an external mass spectrometer for detection through the gas inlet channel 211 and the gas outlet channel 212 to improve the accuracy of the test. Furthermore, since the pressure maintaining mechanism 3 can provide a squeezing force to bring the first electrode 21 and the second electrode 22 closer together, the reliability of the contact between the first electrode 21 and the second electrode 22 and the battery can be improved, reducing the problem of poor electrical contact between the electrodes and the battery. Therefore, the battery testing mold of this utility model has a reasonable structural design, good electrical contact and sealing effects, and is conducive to improving the accuracy of battery testing.

[0033] It should be noted that the first electrode 21 and the second electrode 22 have opposite polarities to supply power to the battery (or other structure capable of electrochemical reaction) inside the collection chamber 11. For example, the first electrode 21 and the second electrode 22 are arranged along the vertical direction of the base 1, that is, the first direction is consistent with the vertical direction of the base 1.

[0034] It is understandable that, such as Figure 3 As shown, at least a portion of the first electrode 21 extends downward into the collection chamber 11, and at least a portion of the second electrode 22 extends upward into the collection chamber 11. Both the first electrode 21 and the second electrode 22 are in contact with the battery, and the pressure holding mechanism 3 provides a squeezing force to the first electrode 21 and the second electrode 22 to bring them closer together, so that the first electrode 21 and the second electrode 22 clamp the battery.

[0035] Specifically, the first electrode 21 and the second electrode 22 are each provided with a corresponding wire socket 23 for supplying power to the first electrode 21 and the second electrode 22.

[0036] Optionally, such as Figure 1 As shown, the battery test mold also includes a first insulating sheet 41 and a second insulating sheet 42. The first insulating sheet 41 is disposed between the first electrode 21 and the inner wall of the clamping cavity, and the second insulating sheet 42 is disposed between the second electrode 22 and the inner wall of the clamping cavity. This can improve the overall insulation effect of the battery test mold and avoid the problem of short circuit when the first electrode 21 and the second electrode 22 are working.

[0037] In some embodiments, such as Figure 3 As shown, the battery testing mold also includes a locking sleeve 51 and an elastic first sealing element 52. The first sealing element 52 is disposed between the first electrode 21 and the inner wall of the collection chamber 11. The locking sleeve 51 is sleeved on the outside of the first electrode 21 and can be pressed towards the first sealing element 52. Since the first sealing element 52 has a certain elasticity, when the locking sleeve 51 presses the first sealing element 52 towards the first sealing element 52 (from top to bottom), the first sealing element 52 can undergo elastic deformation to fill the gap between the first electrode 21 and the collection chamber 11, thereby preventing air leakage in the collection chamber 11 and improving the accuracy of the battery testing mold when testing batteries.

[0038] Specifically, such as Figure 3 As shown, the collection chamber 11 includes a collection section 113 and a first sealing section 111. The first sealing section 111 communicates with the collection section 113. The inner diameter of the first sealing section 111 is larger than the inner diameter of the collection section 113, so that one end of the first sealing section 111 adjacent to the collection section 113 forms a stepped surface. The first sealing element 52 is disposed on the stepped surface. The locking sleeve 51 is threadedly engaged with the first sealing section 111 and abuts against the first sealing element 52. Because the locking sleeve 51 is threadedly engaged with the first sealing section 111, the locking sleeve 51 can be screwed toward the first sealing element 52 to provide a compressive force to the first sealing element 52. When it is necessary to remove the battery from the collection chamber 11, the locking sleeve 51 can be loosened so that the first electrode 21 can be pulled out of the collection chamber 11. The battery test mold of this embodiment of the present invention improves the reliability of the seal between the first electrode 21 and the collection chamber 11 by sealing the first electrode 21 and the collection chamber 11 in the above manner, and is convenient to disassemble and assemble, and simple to operate.

[0039] Optionally, such as Figure 3As shown, the collection chamber 11 also includes a second sealing section 112, which communicates with the collection section 113. The second sealing section 112 is located on the side of the collection section 113 opposite to the first sealing section 111. The battery test mold also includes a flexible second sealing element 53, which is located between the second electrode 22 and the second sealing section 112. It can be understood that the upper end of the second electrode 22 is inserted into the collection chamber 11, and the second sealing element 53 elastically abuts against the outer wall of the second electrode 22 and the inner wall of the collection chamber 11. Thus, the gap between the second electrode 22 and the collection chamber 11 can be sealed through the second sealing element 53 to prevent air leakage in the collection chamber 11, and it is easy to assemble and disassemble.

[0040] For example, such as Figure 5 As shown, the outer peripheral wall of the second electrode 22 is provided with a mounting groove 221, and the second sealing member 53 is annular and sleeved in the mounting groove 221. It can be understood that the inner ring of the second sealing member 53 is embedded in the mounting groove 221, and the outer ring of the second sealing member 53 abuts against the inner wall of the collection cavity 11 to prevent the second sealing member 53 from shifting relative to the second electrode 22 when the second electrode 22 is inserted or removed.

[0041] Optionally, such as Figure 3 As shown, gas inlet channel 211 and gas outlet channel 212 are disposed on the first electrode 21. The battery test mold also includes a porous metal sheet 6, which abuts against the first electrode 21 and the battery. It can be understood that the first electrode 21 is disposed on the upper side of the base 1, and both the gas inlet channel 211 and the gas outlet channel 212 extend vertically and are independent of each other. External gas can be introduced into the collection chamber 11 through the gas inlet channel 211, and then the gas mixed with the electrochemical reaction can be discharged to the mass spectrometer through the gas outlet channel 212.

[0042] Since the porous metal sheet 6 abuts between the first electrode 21 and the battery, the problem of the gas inlet channel 211 and the gas outlet channel 212 being blocked when the first electrode 21 abuts the battery can be avoided. The battery test mold of this utility model uses the porous metal sheet 6, which can not only play a role in conducting electricity, but also ensure the smooth flow of gas inlet channel 211 and gas outlet channel 212.

[0043] Optionally, such as Figure 2 and Figure 4 As shown, either the gas inlet channel 211 or the gas outlet channel 212 has a threaded section 213 at the end away from the collection chamber 11. The battery test mold also includes a gas path adapter 7, which is installed on the threaded section 213, thereby facilitating the installation and removal of the gas path adapter 7 and the first electrode 21.

[0044] In some embodiments, such as Figure 1As shown, the pressure holding mechanism 3 includes a first pressure plate 31, a second pressure plate 32, and an adjusting member 33. The first pressure plate 31 and the second pressure plate 32 are arranged at a distance along a first direction to define a clamping cavity. The adjusting member 33 is connected to the first pressure plate 31 and the second pressure plate 32 to adjust the distance between the first pressure plate 31 and the second pressure plate 32. It can be understood that the adjusting member 33 can adjust the distance between the first pressure plate 31 and the second pressure plate 32 to adjust the pressure of the first electrode 21 and the second electrode 22 clamping the battery to meet the battery testing requirements.

[0045] Specifically, such as Figure 1 As shown, the adjusting component 33 includes a threaded rod 331 and a clamping nut 312. The threaded rod 331 passes through the first pressure plate 31 and the second pressure plate 32. The clamping nut 312 is fitted onto the threaded rod 331 and abuts against one of the first pressure plate 31 and the second pressure plate 32. It is understood that by screwing the clamping nut 312 onto the threaded rod 331, the operator can adjust the position of the clamping nut 312 on the threaded rod 331 to adjust the distance between the first pressure plate 31 and the second pressure plate 32.

[0046] In the example of this application, there are multiple adjusting members 33, which are spaced apart on the first pressure plate 31 and the second pressure plate 32 to improve the reliability of clamping the first electrode 21 and the second electrode 22.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] Furthermore, 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. Thus, 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, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] 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.

[0050] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. 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.

[0052] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A battery testing mold, characterized in that, include: A base, wherein a collection cavity for installing a battery is provided inside the base, and the collection cavity extends through the base along a first direction; An electrode assembly, comprising a first electrode and a second electrode, wherein the first electrode and the second electrode are respectively arranged on both sides of the collection cavity along the first direction and are both sealed to the collection cavity; one of the first electrode and the second electrode is provided with a gas inlet channel and a gas outlet channel, both of which are in communication with the collection cavity; A pressure holding mechanism is provided, wherein a clamping cavity is provided within the pressure holding mechanism, and the electrode assembly is installed in the clamping cavity. The pressure holding mechanism is used to provide a squeezing force to bring the first electrode and the second electrode closer together.

2. The battery testing mold according to claim 1, characterized in that, The battery testing mold further includes a first insulating sheet and a second insulating sheet. The first insulating sheet is disposed between the first electrode and the inner wall of the clamping cavity, and the second insulating sheet is disposed between the second electrode and the inner wall of the clamping cavity.

3. The battery testing mold according to claim 1, characterized in that, The battery testing mold also includes a locking sleeve and an elastic first sealing element. The first sealing element is disposed between the first electrode and the inner wall of the acquisition cavity. The locking sleeve is sleeved on the outside of the first electrode and can squeeze the first sealing element towards the first sealing element.

4. The battery testing mold according to claim 3, characterized in that, The collection cavity includes a collection section and a first sealing section. The first sealing section is connected to the collection section. The inner diameter of the first sealing section is larger than the inner diameter of the collection section, so that a stepped surface is formed at one end of the first sealing section adjacent to the collection section. The first sealing element is disposed on the stepped surface. The locking sleeve is threadedly engaged with the first sealing section and abuts against the first sealing element.

5. The battery testing mold according to claim 4, characterized in that, The acquisition cavity further includes a second sealing section, which communicates with the acquisition section and is located on the side of the acquisition section away from the first sealing section. The battery test mold also includes an elastic second sealing element, which is located between the second electrode and the second sealing section.

6. The battery testing mold according to claim 5, characterized in that, The outer peripheral wall of the second electrode is provided with a mounting groove, and the second sealing element is annular and sleeved in the mounting groove.

7. The battery testing mold according to claim 1, characterized in that, The gas inlet channel and the gas outlet channel are located on the first electrode. The battery test mold also includes a porous metal sheet, which abuts between the first electrode and the battery.

8. The battery testing mold according to claim 7, characterized in that, Both the gas inlet channel and the gas outlet channel have a threaded section at the end away from the collection chamber. The battery test mold also includes a gas path adapter, which is installed on the threaded section.

9. The battery testing mold according to claim 1, characterized in that, The pressure holding mechanism includes a first pressure plate, a second pressure plate, and an adjusting member. The first pressure plate and the second pressure plate are arranged at intervals along the first direction to define the clamping cavity. The adjusting member is connected to the first pressure plate and the second pressure plate to adjust the distance between the first pressure plate and the second pressure plate.

10. The battery testing mold according to claim 9, characterized in that, The adjusting component includes a threaded rod and a clamping nut. The threaded rod passes through the first pressure plate and the second pressure plate, and the clamping nut is fitted onto the threaded rod and abuts against one of the first pressure plate and the second pressure plate.

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