CN219957727U - Gel sample conductivity testing device - Google Patents

Abstract

The utility model belongs to the technical field of gel sample preparation and testing, and discloses a gel sample conductivity testing device which comprises a testing bottle, a sealing cover and an electrode assembly, wherein the sealing cover is detachably sealed and plugged at the bottle mouth of the testing bottle, the electrode assembly is in sealing connection with the sealing cover, the electrode assembly can extend into the testing bottle, a testing groove is arranged on the electrode assembly extending into the testing bottle, and the gel sample conductivity testing device not only can realize sealing of the testing bottle, so that the gel sample conductivity testing device is suitable for preparing gel samples with extremely low moisture content, but also can reduce the pouring amount of gel reagents and has the effect of reducing the testing cost of the gel samples.

Description

Gel sample conductivity testing device

Technical Field

The utility model relates to the technical field of gel sample preparation and testing, in particular to a gel sample conductivity testing device.

Background

In the technical field of new energy, the development of various gel elements is very important, and in the development process of the gel elements, a gel sample needs to be prepared and the conductivity of the gel sample needs to be tested.

In the prior art, a gel reagent is often poured into a preparation container, a gel sample is generated after the gel reagent is reacted in the preparation container, and then conductivity test is performed on the gel sample.

In the technical scheme, the bottom of the preparation container is required to be filled with the gel reagent, and the gel reagent is required to reach a certain height in the preparation container, so that the waste of the gel reagent is caused to a certain extent, and the testing cost is further increased; on the other hand, when preparing the gel sample with extremely low moisture content, the preparation container needs to be sealed, so how to realize the sealing of the preparation container so as to prepare the gel sample with extremely low moisture content, and reduce the use amount of the gel reagent so as to reduce the test cost is a technical problem to be solved in the field.

Disclosure of Invention

The utility model aims to provide a gel sample conductivity testing device which not only can realize the sealing of a testing bottle, but also can reduce the pouring amount of a gel reagent.

To achieve the purpose, the utility model adopts the following technical scheme:

a gel sample conductivity testing device comprising:

a test bottle;

the sealing cover is detachably sealed and plugged on the bottle mouth of the test bottle;

the electrode assembly is in sealing connection with the sealing cover, can extend into the test bottle, and a test groove is formed in the electrode assembly extending into the test bottle.

Optionally, the electrode assembly includes a first electrode and a second electrode, the first electrode is connected with the second electrode in an insulating and sealing way, the first electrode is provided with a first notch, the second electrode is provided with a fourth notch, the first notch and the fourth notch are matched to form a test groove, and the first electrode and the second electrode are electrically connected through gel in the test groove.

Optionally, the first electrode has a first outer wall and a second outer wall, the first outer wall includes a first region and a second region, and the first notch is opened on the second region;

the second electrode is provided with a third outer wall and a fourth outer wall, the third outer wall is provided with a third area and a fourth area, and a fourth notch is formed in the fourth area.

Optionally, the first region and/or the third region is provided with an insulating sealing layer;

the gel sample conductivity testing device further comprises fasteners connected to the second and fourth outer walls, respectively, such that the insulating sealing layer is clamped between the first and third regions.

Optionally, the sealing cover is provided with a through hole, and the first electrode and the second electrode are respectively provided with a through hole in a penetrating way;

the second outer wall comprises a first screwing section and a first sealing section, and the first screwing section is provided with a first external thread;

the fourth outer wall comprises a second screwing section and a second sealing section, and the second screwing section is provided with second external threads;

the fastener is provided with internal threads, and the first external threads and the second external threads are respectively matched with the internal threads, so that the hole wall of the through hole is hooped on the first sealing section and the second sealing section to clamp the insulating sealing layer between the first area and the third area.

Optionally, the side wall of the first sealing section is an anode slope, and the distance between the anode slope and the axis of the through hole is gradually increased or decreased along the direction facing the first screwing section;

and/or the side wall of the second sealing section is a negative slope, and the distance between the negative slope and the axis of the through hole is gradually increased or decreased along the direction facing the second screwing section.

Optionally, the first notch is formed on an end face of the first electrode facing the bottom of the test bottle, and the fourth notch is formed on an end face of the second electrode facing the bottom of the test bottle, so that the notch of the test groove is located on the end face of the electrode assembly facing the bottom of the test bottle.

Optionally, the test slots include a first test slot and a second test slot, the first notch includes a second notch and a third notch, the fourth notch includes a fifth notch and a sixth notch, the second notch and the fifth notch cooperate to form the first test slot, and the third notch and the sixth notch cooperate to form the second test slot;

the second notch is communicated with the third notch, and the fifth notch is communicated with the sixth notch, so that the first test groove is communicated with the second test groove;

the gel in the first test groove is electrically connected with the first electrode through the side wall of the second notch, and the gel in the first test groove is electrically connected with the second electrode through the side wall of the fifth notch;

the width of the first test groove is 1mm-10mm, the depth of the first test groove is 5mm-50mm, and the length of the first test groove is 5mm-50mm.

Optionally, the second notch is formed on the end face of the first electrode facing the bottom of the test bottle, and the fifth notch is formed on the end face of the second electrode facing the bottom of the test bottle, so that the notch of the first test groove and the notch of the second test groove are arranged facing the bottom of the test bottle;

the side wall of the third notch and the side wall of the sixth notch are both provided with insulating layers.

Optionally, the second notch penetrates through the first electrode along the radial direction of the first electrode, and the fifth notch penetrates through the second electrode along the radial direction of the second electrode, so that the first test groove is a through groove extending along the radial direction of the electrode assembly;

the third notch penetrates through the first electrode along the radial direction of the first electrode, and the sixth notch penetrates through the second electrode along the radial direction of the second electrode, so that the second test groove is a through groove extending along the radial direction of the electrode assembly;

the depth of the third notch is greater than the depth of the second notch, and/or the depth of the sixth notch is greater than the depth of the fifth notch, so that the groove width of the second test groove is greater than the groove width of the first test groove.

The beneficial effects are that:

according to the gel sample conductivity testing device, the sealing cover and the electrode assembly which can extend into the testing bottle are arranged, the sealing cover is detachably sealed and plugged in the bottle mouth of the testing bottle, and the electrode assembly is in sealing connection with the sealing cover so as to realize sealing of the inner space of the testing bottle, so that the gel sample conductivity testing device can be suitable for preparing gel samples with extremely low moisture content.

Drawings

FIG. 1 is a schematic diagram of a gel sample conductivity testing device provided by the utility model;

FIG. 2 is a schematic cross-sectional view of a gel sample conductivity testing device according to the present utility model;

FIG. 3 is a schematic view of a first electrode according to the present utility model;

fig. 4 is a schematic structural diagram of a second electrode according to the present utility model.

In the figure:

100. a test bottle; 200. sealing cover; 210. a seal ring; 300. an electrode assembly; 310. a first electrode; 311. a first notch; 3111. a second notch; 3112. a third notch; 312. a first outer wall; 3121. a first region; 3122. a second region; 313. a second outer wall; 3131. a first screwing section; 3132. a first seal segment; 320. a second electrode; 321. a fourth notch; 3211. a fifth notch; 3212. a sixth notch; 322. a third outer wall; 3221. a third region; 3222. a fourth region; 323. a fourth outer wall; 3231. a second screwing section; 3232. a second seal section; 400. a test slot; 410. a first test slot; 420. a second test slot; 500. a fastener; 600. an insulating sealing layer; 710. a first tab; 720. and a second lug.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides a gel sample conductivity testing device, which not only can realize the sealing of a testing bottle, but also can reduce the pouring amount of gel reagent.

Specifically, as shown in fig. 1 and 2, the gel sample conductivity testing device includes a testing bottle 100, a sealing cap 200 and an electrode assembly 300, wherein the sealing cap 200 is detachably sealed and plugged at the bottle mouth of the testing bottle 100, the electrode assembly 300 is in sealing connection with the sealing cap 200, the electrode assembly 300 can extend into the testing bottle 100, and a testing groove 400 is arranged on the electrode assembly 300 extending into the testing bottle 100.

The gel sample conductivity testing device is provided with the sealing cover 200 and the electrode assembly 300 which can extend into the testing bottle 100, the sealing cover 200 is detachably sealed and plugged at the bottle mouth of the testing bottle 100, and the electrode assembly 300 is in sealing connection with the sealing cover 200 so as to realize sealing of the inner space of the testing bottle 100, so that the gel sample conductivity testing device can be suitable for preparing gel samples with extremely low moisture content, meanwhile, the electrode assembly 300 extending into the testing bottle 100 is provided with the testing groove 400, when the gel samples are prepared, gel reagents are poured into the testing bottle 100, the electrode assembly 300 extends into the testing bottle 100, the sealing cover 200 seals and plugs the bottle mouth of the testing bottle 100, the electrode assembly 300 extending into the testing bottle 100 occupies the inner space of the testing bottle 100, and the gel reagents are caused to overflow to fill into the testing groove 400, so that gel samples are finally formed in the testing groove 400, the pouring quantity of the gel reagents is effectively reduced, and the effect of reducing the testing cost is achieved.

Optionally, the gel reagent may be a gel reagent common in the art, such as methyl methacrylate or azobisisobutyronitrile, and specific components and preparation processes thereof are conventional in the art, and are not described herein.

Optionally, as shown in fig. 1 and 2, the gel sample conductivity testing device further includes a sealing ring 210, the sealing cover 200 is provided with an annular groove, the sealing ring 210 is disposed in the annular groove, and the sealing cover 200 and the test bottle 100 are sealed by the sealing ring 210.

Alternatively, as shown in fig. 1 to 4, the electrode assembly 300 includes a first electrode 310 and a second electrode 320, where the first electrode 310 is in insulating and sealing connection with the second electrode 320, the first electrode 310 is provided with a first notch 311, the second electrode 320 is provided with a fourth notch 321, the first notch 311 and the fourth notch 321 cooperate to form a test slot 400, the first electrode 310 and the second electrode 320 are electrically connected with a test end of the resistance test instrument through a gel in the test slot 400, in the prior art, when the gel is tested for resistivity, the gel needs to be made in a low humidity environment, after a gel sample is prepared, the electrode package is used to form a sealed gel sample test body with a certain thickness and area, then the electrode package with the gel sample test body is removed from the low humidity environment, and then the gel sample is connected with the resistance test instrument for resistivity test.

In this example, the first electrode 310 is a positive electrode, the second electrode 320 is a negative electrode, and in other embodiments, the first electrode 310 may be a negative electrode and the second electrode 320 may be a positive electrode.

Optionally, as shown in fig. 1 to fig. 4, the gel sample conductivity testing device further includes a first tab 710 and a second tab 720, where the first tab 710 is provided with an external positive thread, the second tab 720 is provided with an external negative thread, the first electrode 310 is provided with an external positive threaded hole (not shown in the drawing), the second electrode 320 is provided with an external negative threaded hole (not shown in the drawing), the external positive thread is in threaded connection with the external positive threaded hole, the external negative thread is in threaded connection with the external negative threaded hole, so as to realize detachable connection between the first tab 710 and the first electrode 310, the second tab 720 is in detachable connection with the second electrode 320, during testing, a positive clamp of the resistance testing instrument is clamped on the first tab 710, a negative clamp of the resistance testing instrument is clamped on the second tab 720, the first electrode 310 is electrically connected with the resistance testing instrument through the first tab 710, and the second electrode 320 is electrically connected with the resistance testing instrument through the second tab 720. In this example, the first tab 710 is a positive tab, and the second tab 720 is a negative tab, however, in other embodiments, the first tab 710 may be a negative tab, and the second tab 720 may be a positive tab.

Alternatively, as shown in fig. 1 to 4, the first electrode 310 has a first outer wall 312 and a second outer wall 313, the first outer wall 312 includes a first region 3121 and a second region 3122, the first gap 311 is opened on the second region 3122, the second electrode 320 has a third outer wall 322 and a fourth outer wall 323, the third outer wall 322 has a third region 3221 and a fourth region 3222, and the fourth gap 321 is opened on the fourth region 3222. Further, the first region 3121 and the third region 3221 are both provided with an insulating sealing layer 600, the gel sample conductivity testing device further comprises a fastener 500, the fastener 500 is respectively connected with the second outer wall 313 and the fourth outer wall 323, so that the insulating sealing layer 600 is clamped between the first region 3121 and the third region 3221 to realize insulating sealing connection of the first electrode 310 and the second electrode 320, and the structural arrangement further realizes split structural design of the first electrode 310 and the second electrode 320, so that the overall structure of the gel sample conductivity testing device is more flexible. In this example, the insulating seal layer 600 is provided in each of the first region 3121 and the third region 3221, and in other embodiments, the insulating seal layer 600 may be provided in one of the first region 3121 and the third region 3221, as long as insulating seal between the first electrode 310 and the second electrode 320 can be achieved.

Preferably, as shown in fig. 1 to 4, the sealing cap 200 is provided with a through hole, the first electrode 310 and the second electrode 320 are respectively provided with a through hole, the second outer wall 313 comprises a first screwing section 3131 and a first sealing section 3132, the first screwing section 3131 is provided with a first external thread (not shown in the drawings), the fourth outer wall 323 comprises a second screwing section 3231 and a second sealing section 3232, the second screwing section 3231 is provided with a second external thread (not shown in the drawings), the fastener 500 is provided with an internal thread, the fastener 500 is sleeved on the first screwing section 3131 and the second screwing section 3231, the first external thread and the second external thread are spliced into a whole external thread structure, the fastener 500 is screwed, the internal thread of the fastener 500 is respectively matched with the first external thread and the second external thread, so as to squeeze the first sealing section 3132 and the second sealing section 3232 into the through hole of the sealing cap 200, the hole wall of the through hole is tightly clamped on the first sealing section 3132 and the second sealing section 3232, the sealing assembly 300 is not realized, namely, the first electrode 3121 and the second electrode 320 are connected with the second electrode 320 in a sealed region 3221, and the sealing cap 320 is further connected between the first electrode 310 and the second electrode 320 and the sealing cap 320 in a sealed region between the sealed region of the electrode 3221.

Alternatively, the fastener 500 may be a hex nut or a butterfly nut or the like having internal threads.

In one embodiment, fastener 500 is a rubber ring that is hooped over second outer wall 313 and fourth outer wall 323 to clamp insulating seal layer 600 between first region 3121 and third region 3221.

Preferably, as shown in fig. 1 to 4, the sidewall of the first sealing section 3132 is a positive slope, the interval between the positive slope and the axis of the through hole is gradually reduced in the direction toward the first screwing section 3131, the sidewall of the second sealing section 3232 is a negative slope, the interval between the negative slope and the axis of the through hole is gradually reduced in the direction toward the second screwing section 3231, and when the fastener 500 is screwed, the wall of the through hole is different from the extrusion force of the first sealing section 3132 and the second sealing section 3232 and the extrusion force of the first region 3121 and the third region 3221 due to the difference in extrusion depths of the first sealing section 3132 and the second sealing section 3232, thereby achieving the effect of adjusting the sealability between the electrode assembly 300 (i.e., the combination of the first electrode 310 and the second electrode 320) and the sealing cap 200, and the sealability between the first electrode 310 and the second electrode 320 by screwing the fastener 500. Of course, in other embodiments, the spacing between the positive slope and the axis of the through hole may be gradually increased in the direction toward the first screwing section 3131, and the spacing between the negative slope and the axis of the through hole may be gradually increased in the direction toward the second screwing section 3231; alternatively, the spacing between the positive electrode slope and the axis of the through hole may be gradually decreased in the direction toward the first screwing section 3131, and the spacing between the negative electrode slope and the axis of the through hole may be gradually increased in the direction toward the second screwing section 3231; alternatively, the distance between the positive electrode slope and the axis of the through hole may be gradually increased in the direction toward the first screwing section 3131, and the distance between the negative electrode slope and the axis of the through hole may be gradually decreased in the direction toward the second screwing section 3231, so long as the effect of adjusting the sealability between the electrode assembly 300 and the sealing cap 200 and the sealability between the first electrode 310 and the second electrode 320 can be achieved as the fastener 500 is screwed.

Alternatively, as shown in fig. 1 to 4, the first electrode 310 and the second electrode 320 are both substantially in a semi-cylindrical structure, and the volumes of the first electrode 310 and the second electrode 320 are equal, the second outer wall 313 and the fourth outer wall 323 are both cambered surfaces, and the first outer wall 312 and the third outer wall 322 are both planar, so that the overall structure of the electrode assembly 300 is relatively regular, however, in other embodiments, the first electrode 310 and the second electrode 320 may be in other shape structures, and the volumes of the first electrode 310 and the second electrode 320 may not be equal, as required by practical application.

Alternatively, as shown in fig. 1 to 4, the first notch 311 is formed on the end face of the first electrode 310 facing the bottom of the test bottle 100, and the fourth notch 321 is formed on the end face of the second electrode 320 facing the bottom of the test bottle 100, so that the notch of the test slot 400 is located on the end face of the electrode assembly 300 facing the bottom of the test bottle 100, and compared with the notch of the test slot 400 located at other positions (for example, on the side wall of the electrode assembly 300), the structure is beneficial to overflow of the gel reagent concentrated on the bottom of the test bottle 100 into the test slot 400, further reducing the dosage of the gel reagent, and improving the volume and success rate of forming the gel sample in the test slot 400.

Further, as shown in fig. 1 to 4, the test slot 400 includes a first test slot 410 and a second test slot 420, the first notch 311 includes a second notch 3111 and a third notch 3112, the fourth notch 321 includes a fifth notch 3211 and a sixth notch 3212, the second notch 3111 and the fifth notch 3211 cooperate to form the first test slot 410, the third notch 3112 and the sixth notch 3212 cooperate to form the second test slot 420, the second notch 3111 and the third notch 3112 are communicated, the fifth notch 3211 and the sixth notch 3212 are communicated, the first test slot 410 is communicated with the second test slot 420, the gel in the first test slot 410 is electrically connected with the first electrode 310 through a side wall of the second notch 3111, the gel in the first test slot 410 is electrically connected with the second electrode 320 through a side wall of the fifth notch 3211, after the gel reagent reaction is completed, the gel in the first test slot 410 and the second test slot 420 is observed, the gel in the first test slot 410 is filled with the gel, and the second test slot 420 is overflowed, the second test slot 3111 is regarded as being in the second test slot 420, the gel is filled with the gel, the sample is successfully prepared, and the sample is filled with the gel, and the sample is able to be tested, and the sample is able to have a good sample conductivity after the sample is successfully prepared.

Alternatively, as shown in fig. 1 to 4, the second notch 3111 is formed on the end face of the first electrode 310 facing the bottom of the test bottle 100, and the fifth notch 3211 is formed on the end face of the second electrode 320 facing the bottom of the test bottle 100, so that the notch of the first test slot 410 and the notch of the second test slot 420 are both disposed facing the bottom of the test bottle 100, so that the gel reagent concentrated on the bottom of the test bottle 100 overflows, and then enters the first test slot 410 first, and after the gel reagent fills the first test slot 410, the gel reagent continues to overflow into the second test slot 420, thereby ensuring that the first test slot 410 can be filled with the gel sample. Preferably, the side wall of the third notch 3112 and the side wall of the sixth notch 3212 are both provided with insulating layers, and when the gel sample conductivity testing apparatus is used for testing the resistivity of the gel sample, only the gel sample in the first test slot 410 is tested, but not the gel sample in the second test slot 420, and the second test slot 420 only plays a role in overflowing the redundant gel reagent in the first test slot 410 into the second test slot 420. The insulating layers provided on the side walls of the third gap 3112 and the side walls of the sixth gap 3212 may be the same insulating sealing material as the insulating sealing layer 600 interposed between the first region 3121 and the third region 3221, or may be different insulating materials as long as the insulating properties of the side walls of the third gap 3112, the insulating properties of the side walls of the sixth gap 3212, and the insulating sealing properties between the first region 3121 and the third region 3221 can be achieved.

Preferably, as shown in fig. 1 to 4, the second notch 3111 penetrates the first electrode 310 along the radial direction of the first electrode 310, and the fifth notch 3211 penetrates the second electrode 320 along the radial direction of the second electrode 320, so that the first test slot 410 is a through slot extending along the radial direction of the electrode assembly 300, and the first test slot 410 is in a substantially rectangular parallelepiped structure, and thus the gel sample formed in the first test slot 410 is also in a substantially rectangular parallelepiped structure, so as to facilitate calculation of the resistivity test data of the gel sample. Preferably, the volume of the first test slot 410 is 1 cubic millimeter, i.e., the volume of the gel sample formed in the first test slot 410 is 1 cubic millimeter, to achieve the effect of simplifying the calculation. In this embodiment, the width of the first test slot 410 is 1mm to 10mm, and illustratively, the width of the first test slot 410 may be 1mm, 2.5mm, 5mm, 10mm, etc., the depth of the first test slot 410 is 5mm to 50mm, and illustratively, the depth of the first test slot 410 may be 5mm, 10mm, 25mm, 50mm, etc., the length of the first test slot 410 is 5mm to 50mm, and illustratively, the length of the first test slot 410 may be 5mm, 10mm, 25mm, 50mm, etc., although in other embodiments, the width, depth, and length of the first test slot 410 may be other dimensions, as desired for testing. The width of the first test slot 410 refers to the dimension of the first test slot 410 in the left-right direction (hereinafter referred to as the first direction) in fig. 2, the depth of the first test slot 410 refers to the dimension of the first test slot 410 in the up-down direction (hereinafter referred to as the second direction) in fig. 2, and the length of the first test slot 410 refers to the dimension of the first test slot 410 in the third direction in fig. 2, wherein the third direction is perpendicular to the first direction and the second direction.

Further, as shown in fig. 1 to 4, the third notch 3112 penetrates the first electrode 310 along the radial direction of the first electrode 310, and the sixth notch 3212 penetrates the second electrode 320 along the radial direction of the second electrode 320, so that the second test slot 420 is a through slot extending along the radial direction of the electrode assembly 300, and further, the first test slot 410 is ensured to be filled with gel reagent.

Preferably, as shown in fig. 1 to 4, the depth of the third gap 3112 is greater than the depth of the second gap 3111, and/or the depth of the sixth gap 3212 is greater than the depth of the fifth gap 3211, so that the width of the second test slot 420 is greater than the width of the first test slot 410, and the first test slot 410 is filled with the gel reagent when the gel reagent enters the second test slot 420, which has the effect of further ensuring that the first test slot 410 can be filled with the gel reagent.

In this embodiment, the PP bottle is selected as the test bottle 100, so that the test bottle 100 has good insulation, the sealing cover 200 and the fastening piece 500 are made of tetrafluoro insulation materials, so that the sealing cover 200 and the fastening piece 500 have good insulation, the insulation sealing layer 600 is a tetrafluoro insulation layer, the second outer wall 313 extending into the test bottle 100 is provided with a tetrafluoro insulation layer on the first electrode 310, the second electrode 320 is provided with a tetrafluoro insulation layer on the fourth outer wall 323 extending into the test bottle 100, the insulation layers arranged on the side wall of the third gap 3112 and the side wall of the sixth gap 3212 are tetrafluoro insulation layers, so that only the side wall of the second gap 3111, the first sealing section 3132, the first screwing section 3131, the side wall of the fifth gap 3211, the second sealing section 3232 and the second screwing section 3231 are not provided with insulation layers, and the rest positions are provided with insulation layers, thereby improving the insulation and the test reliability of the whole gel sample conductivity test device.

The use of the gel sample conductivity testing device provided in this example is briefly described below:

attaching the first outer wall 312 of the first electrode 310 and the third outer wall 322 of the second electrode 320, forming the first electrode 310 and the second electrode 320 into an electrode assembly 300, penetrating the electrode assembly 300 through the through hole of the sealing cover 200, screwing the fastener 500 into the first screwing section 3131 and the second screwing section 3231 until the electrode assembly 300 is clamped in the through hole, loading the sealing ring 210 into the annular groove of the sealing cover 200, inserting one end of the electrode assembly 300 with the test groove 400 into the test bottle 100, at the moment, sealing the bottle mouth of the test bottle 100 by the sealing cover 200, forming a sealing space inside the test bottle 100, screwing the first tab 710 into the first electrode 310 and the second tab 720 into the second electrode 320;

checking the tightness of the internal space of the test bottle 100, pulling out the test bottle 100, pouring one third of liquid into the test bottle 100, inserting one end of the electrode assembly 300 with the test groove 400 into the test bottle 100, sealing the bottle mouth of the test bottle 100 by the sealing cover 200, inverting the test bottle 100 for five minutes, and checking that no liquid leaks;

pulling out the test bottle 100, pouring out the liquid in the test bottle 100, and drying for later use;

when the gel sample conductivity testing device is used, the gel sample conductivity testing device is moved into a glove box, in a low-humidity environment, the testing bottle 100 is pulled out, a gel reagent is poured into the testing bottle 100, one end of the electrode assembly 300 with the testing groove 400 is inserted into the testing bottle 100, the sealing cover 200 seals the bottle mouth of the testing bottle 100, after the gel reagent reaction is completed, whether a gel sample exists in the second testing groove 420 is checked, if the gel sample exists in the second testing groove 420, the first testing groove 410 is indicated to be full of the gel sample, and the gel sample conductivity testing device is moved out of the glove box; and sending the sample to an electrochemical workstation for Electrochemical Impedance Spectroscopy (EIS) testing.

In the test, the positive electrode clamp and the negative electrode clamp are respectively clamped on the first electrode lug 710 and the second electrode lug 720, the conductivity of the gel sample filled in the first test groove 410 is tested, an alternating current impedance spectrum is obtained, a resistance value is obtained from the alternating current impedance spectrum, and the conductivity is obtained through calculation according to the following formula (1).

Equation (1) is σ=l/(SR), where σ is the conductivity of the gel sample, L is the width of the first test slot 410 (i.e., the width of the gel sample in the first test slot 410), S is the area of the first test slot 410 (i.e., the area of the gel sample in the first test slot 410, specifically the product of the depth and length of the first test slot 410), and R is the resistance value (i.e., the intercept value of the low frequency tail and the real axis in the ac impedance spectrum).

After the test is completed, the gel sample conductivity testing device is disassembled, the gel sample is processed, and the gel sample conductivity testing device is cleaned and dried for standby.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The gel sample conductivity testing device is characterized by comprising:

a test bottle (100);

the sealing cover (200) is detachably sealed and plugged on the bottle mouth of the test bottle (100);

the electrode assembly (300), the electrode assembly (300) with sealed lid (200) sealing connection, electrode assembly (300) can stretch into in test bottle (100), and stretch into be equipped with test groove (400) on electrode assembly (300) of test bottle (100).

2. The gel sample conductivity testing device according to claim 1, wherein the electrode assembly (300) comprises a first electrode (310) and a second electrode (320), the first electrode (310) is connected with the second electrode (320) in an insulating and sealing manner, the first electrode (310) is provided with a first notch (311), the second electrode (320) is provided with a fourth notch (321), the first notch (311) and the fourth notch (321) cooperate to form the test slot (400), and the first electrode (310) and the second electrode (320) are electrically connected through gel in the test slot (400).

3. The gel sample conductivity testing device according to claim 2, wherein,

the first electrode (310) is provided with a first outer wall (312) and a second outer wall (313), the first outer wall (312) comprises a first area (3121) and a second area (3122), and the first notch (311) is arranged on the second area (3122);

the second electrode (320) is provided with a third outer wall (322) and a fourth outer wall (323), the third outer wall (322) is provided with a third area (3221) and a fourth area (3222), and the fourth notch (321) is formed in the fourth area (3222).

4. A gel sample conductivity testing device according to claim 3, characterized in that the first region (3121) and/or the third region (3221) is provided with an insulating sealing layer (600), the insulating sealing layer (600) being clamped between the first region (3121) and the third region (3221);

the gel sample conductivity testing device further comprises a fastener (500), the fastener (500) being connected to the second outer wall (313) and the fourth outer wall (323), respectively, such that the insulating sealing layer (600) is clamped between the first region (3121) and the third region (3221).

5. The gel sample conductivity testing device according to claim 4, wherein the sealing cap (200) is provided with a through hole, through which the first electrode (310) and the second electrode (320) are each penetrated;

the second outer wall (313) comprises a first screwing section (3131) and a first sealing section (3132), the first screwing section (3131) being provided with a first external thread;

the fourth outer wall (323) comprises a second screwing section (3231) and a second sealing section (3232), the second screwing section (3231) being provided with a second external thread;

the fastener (500) has internal threads with which the first and second external threads respectively threadedly mate, such that the bore wall of the through bore is cinched over the first and second seal segments (3132, 3232) to clamp the insulating seal layer (600) between the first and third regions (3121, 3221).

6. The gel sample conductivity testing device according to claim 5, wherein the side wall of the first sealing section (3132) is a positive slope, and the spacing between the positive slope and the axis of the through hole is gradually increased or decreased in the direction towards the first screwing section (3131);

and/or, the side wall of the second sealing section (3232) is a negative slope, and the distance between the negative slope and the axis of the through hole is gradually increased or decreased along the direction towards the second screwing section (3231).

7. The gel sample conductivity testing device according to any one of claims 2-5, wherein the first notch (311) is opened on an end face of the first electrode (310) facing the bottom of the test bottle (100), and the fourth notch (321) is opened on an end face of the second electrode (320) facing the bottom of the test bottle (100), so that the notch of the test groove (400) is located on an end face of the electrode assembly (300) facing the bottom of the test bottle (100).

8. The gel sample conductivity testing device of any one of claims 2-5, wherein said test slot (400) comprises a first test slot (410) and a second test slot (420), said first notch (311) comprises a second notch (3111) and a third notch (3112), said fourth notch (321) comprises a fifth notch (3211) and a sixth notch (3212), said second notch (3111) cooperates with said fifth notch (3211) to form said first test slot (410), said third notch (3112) cooperates with said sixth notch (3212) to form said second test slot (420);

the second notch (3111) communicates with the third notch (3112), the fifth notch (3211) communicates with the sixth notch (3212) to communicate the first test slot (410) with the second test slot (420);

the gel in the first test slot (410) is electrically connected with the first electrode (310) through the side wall of the second notch (3111), and the gel in the first test slot (410) is electrically connected with the second electrode (320) through the side wall of the fifth notch (3211);

the width of the first test groove (410) is 1mm-10mm, the depth of the first test groove (410) is 5mm-50mm, and the length of the first test groove (410) is 5mm-50mm.

9. The gel sample conductivity testing device according to claim 8, wherein the second notch (3111) is opened on an end face of the first electrode (310) facing the bottom of the test bottle (100), and the fifth notch (3211) is opened on an end face of the second electrode (320) facing the bottom of the test bottle (100), so that both the notch of the first test groove (410) and the notch of the second test groove (420) are disposed facing the bottom of the test bottle (100);

the side wall of the third gap (3112) and the side wall of the sixth gap (3212) are both provided with insulating layers.

10. The gel sample conductivity testing device according to claim 8, wherein said second notch (3111) extends through said first electrode (310) in a radial direction of said first electrode (310), and said fifth notch (3211) extends through said second electrode (320) in a radial direction of said second electrode (320), such that said first test slot (410) is a through slot extending radially along said electrode assembly (300);

the third notch (3112) penetrates through the first electrode (310) along the radial direction of the first electrode (310), the sixth notch (3212) penetrates through the second electrode (320) along the radial direction of the second electrode (320), and the second test slot (420) is a through slot extending along the radial direction of the electrode assembly (300);

the third gap (3112) has a depth greater than the second gap (3111), and/or the sixth gap (3212) has a depth greater than the fifth gap (3211) such that the second test slot (420) has a slot width greater than the first test slot (410).