All-solid-state battery test mold and test equipment

Abstract

The utility model discloses an all-solid-state battery testing mold and testing equipment, and belongs to the field of all-solid-state battery testing. The all-solid-state battery testing mold comprises a main body, a cover assembly and a current collecting assembly, the main body is provided with an accommodating cavity and is provided with a first opening and a second opening which are communicated with two ends of the accommodating cavity respectively; the cover assembly comprises a first cover body and a second cover body, the first cover body is detachably connected with the main body and is provided with a first through hole communicated with the first opening, and the second cover body is detachably connected with the main body and is provided with a second through hole communicated with the second opening; the flow collecting assembly comprises a first flow collecting piece and a second flow collecting piece, the first flow collecting piece sequentially penetrates through the first through hole and the first opening and is movably arranged in the containing cavity, and the second flow collecting piece sequentially penetrates through the second through hole and the second opening and is movably arranged in the containing cavity and abuts against the first flow collecting piece. According to the all-solid-state battery testing mold provided by the invention, the pressurizing effect on the all-solid-state battery is improved, so that the testing accuracy of the all-solid-state battery is improved.

Description

Technical Field

[0001] The present application relates to the technical field of all-solid-state battery testing, and particularly to an all-solid-state battery testing mold and testing equipment. Background Art

[0002] As an emerging energy storage technology, all-solid-state batteries have the advantages of high energy density, good safety, and environmental friendliness, and thus have received extensive attention. During the research and production process of all-solid-state batteries, it is crucial to accurately measure and evaluate their performance. To meet this requirement, a mold that can be pressurized for testing is needed.

[0003] In the related art, an all-solid-state battery testing mold includes a cavity, a first current collector, and a second current collector. The first current collector is fixedly connected inside the cavity, and the second current collector is movably arranged inside the cavity and abuts against the first current collector. When testing an all-solid-state battery, the second current collector is first taken out of the cavity, then a negative electrode sheet, a solid electrolyte, and a positive electrode sheet are sequentially placed inside the cavity. Next, the second current collector is inserted into the cavity to pressurize the entire positive electrode sheet, solid electrolyte, and negative electrode sheet. Finally, the first current collector and the second current collector are respectively electrically connected to an external power supply wire for testing. However, this method of directly pressurizing the entire positive electrode sheet, solid electrolyte, and negative electrode sheet has the problem that the pressurizing effect is not good, which affects the accuracy of all-solid-state battery testing. Summary of the Utility Model

[0004] In view of this, the purpose of the present application is to overcome the deficiencies in the prior art and provide an all-solid-state battery testing mold.

[0005] To solve the above technical problems, the present application provides:

[0006] An all-solid-state battery testing mold, comprising:

[0007] A main body having a receiving cavity and having a first opening and a second opening respectively communicating with both ends of the receiving cavity;

[0008] A cover assembly, the cover assembly includes a first cover body and a second cover body. The first cover body is detachably connected to one end of the main body having the first opening and is provided with a first through hole communicating with the first opening. The second cover body is detachably connected to one end of the main body having the second opening and is provided with a second through hole communicating with the second opening;

[0009] Current collecting assembly, the current collecting assembly includes a first current collector and a second current collector. One end of the first current collector is located on the side of the first cover away from the main body, and the other end sequentially passes through the first through hole and the first opening and is movably arranged in the accommodating cavity. One end of the second current collector is located on the side of the second cover away from the main body, and the other end sequentially passes through the second through hole and the second opening and is movably arranged in the accommodating cavity and abuts against the first current collector.

[0010] In addition, the all-solid-state battery test mold according to the present application may further have the following additional technical features:

[0011] In some embodiments of the present application, the all-solid-state battery test mold further includes an insulating assembly, the insulating assembly includes a first insulating member and a second insulating member, the first insulating member is arranged at one end of the first current collector away from the accommodating cavity, and the second insulating member is arranged at one end of the second current collector away from the accommodating cavity.

[0012] In some embodiments of the present application, the first current collector is provided with a first wiring hole for electrically connecting with an external power supply line, the first wiring hole is located on the side of the first cover away from the main body, the second current collector is provided with a second wiring hole for electrically connecting with an external power supply line, and the second wiring hole is located on the side of the second cover away from the main body.

[0013] In some embodiments of the present application, both the first current collector and the second current collector are integrally formed by using tungsten steel material with a dense metal layer plated on the surface.

[0014] In some embodiments of the present application, an outer first thread is provided on the circumferential wall of one end of the main body having the first opening, the first cover is provided with an inner first thread matching the first outer thread, an outer second thread is provided on the circumferential wall of one end of the main body having the second opening, and the second cover is provided with an inner second thread matching the second outer thread.

[0015] In some embodiments of the present application, wrench positions are provided on the circumferential walls of both the first cover and the second cover.

[0016] In some embodiments of the present application, the main body includes:

[0017] A housing having a receiving groove and provided with the second opening communicating with the receiving groove, and an outer second thread is provided on the circumferential wall of one end of the housing having the second opening;

[0018] An inner core is arranged in the receiving groove and is provided with the accommodating cavity;

[0019] An end cap is provided at the notch of the accommodation groove and is detachably connected to the end of the outer shell away from the second opening. The end cap is provided with the first opening, and the first external thread is provided on the circumferential wall of the end cap at the end having the first opening;

[0020] A third sealing member is abutted between the inner core and the end cap.

[0021] In some embodiments of the present application, the all-solid-state battery test mold further includes a first sealing assembly and a second sealing assembly. A first limiting groove is provided on the side of the first cover body close to the main body, and a second limiting groove is provided on the side of the second cover body close to the main body. The first sealing assembly is disposed in the first opening, abuts against the inner core and the first limiting groove respectively, and abuts against the circumferential wall of the first current collector; the second sealing assembly is disposed in the second opening, abuts against the inner core and the second limiting groove respectively, and abuts against the circumferential wall of the second current collector.

[0022] In some embodiments of the present application, the first sealing assembly includes a first sealing member and a first pressing member. There are two first sealing members and two first pressing members. The two first sealing members and the two first pressing members are alternately arranged in the first opening along the axial direction of the first current collector in sequence;

[0023] The second sealing assembly includes a second sealing member and a second pressing member. There are two second sealing members and two second pressing members. The two second sealing members and the two second pressing members are alternately arranged in the second opening along the axial direction of the second current collector in sequence.

[0024] In a second aspect, the present application further provides a testing device, including the all-solid-state battery test mold in any of the above embodiments.

[0025] The beneficial effects of the present application are:

[0026] The present application provides a test mold for all-solid-state batteries. When testing an all-solid-state battery, first remove the second cover and the second current collector from the main body and the accommodation cavity respectively. Then, pass the solid electrolyte through the second opening and place it in the accommodation cavity. Next, install the second cover and the second current collector onto the main body and into the accommodation cavity respectively. Use a press to drive the first current collector and the second current collector closer to each other to press the solid electrolyte. After pressing the solid electrolyte, first remove the second cover and the second current collector from the main body and the accommodation cavity respectively. Then, pass the positive electrode plate through the second opening and place it in the accommodation cavity. Next, install the second cover and the second current collector onto the main body and into the accommodation cavity respectively, and invert the entire test mold for all-solid-state batteries. After inverting the entire test mold for all-solid-state batteries, first remove the first cover and the first current collector from the main body and the accommodation cavity respectively. Then, pass the negative electrode plate through the first opening and place it in the accommodation cavity. Next, install the first cover and the first current collector onto the main body and into the accommodation cavity respectively. Use a press to drive the first current collector and the second current collector closer to each other to press the positive electrode plate, the solid electrolyte, and the negative electrode plate as a whole. In this way, first use a press to drive the first current collector and the second current collector closer to each other to press the solid electrolyte alone, and then use a press to drive the first current collector and the second current collector closer to each other to press the positive electrode plate, the solid electrolyte, and the negative electrode plate as a whole, effectively improving the pressing effect on the all-solid-state battery, thereby improving the accuracy of the all-solid-state battery test. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can also be obtained based on these drawings without creative efforts.

[0028] Figure 1 Fig. shows a front view schematic diagram of a test mold for all-solid-state batteries in some embodiments of the present application;

[0029] Figure 2 Fig. shows a cross-sectional view schematic diagram of a test mold for all-solid-state batteries in some embodiments of the present application;

[0030] Figure 3 Fig. shows a front view schematic diagram of the main body in some embodiments of the present application;

[0031] Figure 4 Fig. shows a cross-sectional view schematic diagram of the main body in some embodiments of the present application.

[0032] MAIN ELEMENT SYMBOL DESCRIPTION:

[0033] 100 - Test mold for all-solid-state batteries;

[0034] 110 - main body; 111 - outer shell; 1111 - receiving groove; 1112 - second opening; 1113 - second external thread; 112 - inner core; 1121 - receiving cavity; 113 - end cap; 1131 - first opening; 1132 - first external thread; 114 - third seal

[0035] 120 - cover assembly; 121 - first cover body; 1211 - first through hole; 1212 - first internal thread; 1213 - first limiting groove; 122 - second cover body; 1221 - second through hole; 1222 - second internal thread; 1223 - second limiting groove; 123 - wrench position

[0036] 130 - current collecting assembly; 131 - first current collecting member; 132 - second current collecting member

[0037] 140 - insulating assembly; 141 - first insulating member; 142 - second insulating member

[0038] 150 - first sealing assembly; 151 - first seal; 152 - first pressing member

[0039] 160 - second sealing assembly; 161 - second seal; 162 - second pressing member Detailed implementation manners

[0040] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0041] In the description of the present application, 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. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

[0042] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless specifically defined otherwise.

[0043] In this application, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0045] As Figure 1 and Figure 2 shown in the figure, an embodiment of this application provides a full-solid-state battery test mold 100, which is mainly used for performing a pressure test on a full-solid-state battery. The full-solid-state battery test mold 100 includes a main body 110, a cover assembly 120, and a current collector assembly 130.

[0046] Among them, the main body 110 has a receiving cavity 1121 and has a first opening 1131 and a second opening 1112 that communicate with both ends of the receiving cavity 1121 respectively. The cover assembly 120 includes a first cover body 121 and a second cover body 122. The first cover body 121 is detachably connected to the end of the main body 110 having the first opening 1131 and is provided with a first through hole 1211 that communicates with the first opening 1131. The second cover body 122 is detachably connected to the end of the main body 110 having the second opening 1112 and is provided with a second through hole 1221 that communicates with the second opening 1112.

[0047] The current collector assembly 130 includes a first current collector 131 and a second current collector 132. One end of the first current collector 131 is located on the side of the first cover 121 away from the main body 110, and the other end sequentially passes through the first through hole 1211 and the first opening 1131 and is movably arranged in the accommodation cavity 1121. One end of the second current collector 132 is located on the side of the second cover 122 away from the main body 110, and the other end sequentially passes through the second through hole 1221 and the second opening 1112 and is movably arranged in the accommodation cavity 1121 and abuts against the first current collector 131.

[0048] For the all-solid-state battery test mold 100 provided by the embodiment of the present application, when it is necessary to test the all-solid-state battery, first remove the second cover 122 and the second current collector 132 from the main body 110 and the accommodation cavity 1121 respectively, then put the solid electrolyte through the second opening 1112 into the accommodation cavity 1121, then install the second cover 122 and the second current collector 132 onto the main body 110 and into the accommodation cavity 1121 respectively, and drive the first current collector 131 and the second current collector 132 to approach each other by a press to pressurize the solid electrolyte.

[0049] After the pressurization of the solid electrolyte is completed, first remove the second cover 122 and the second current collector 132 from the main body 110 and the accommodation cavity 1121 respectively, then put the positive electrode sheet through the second opening 1112 into the accommodation cavity 1121, then install the second cover 122 and the second current collector 132 onto the main body 110 and into the accommodation cavity 1121 respectively and invert the whole all-solid-state battery test mold 100.

[0050] After inverting the whole all-solid-state battery test mold 100, first remove the first cover 121 and the first current collector 131 from the main body 110 and the accommodation cavity 1121 respectively, then put the negative electrode sheet through the first opening 1131 into the accommodation cavity 1121, then install the first cover 121 and the first current collector 131 onto the main body 110 and into the accommodation cavity 1121 respectively, and drive the first current collector 131 and the second current collector 132 to approach each other by a press to pressurize the positive electrode sheet, the solid electrolyte and the negative electrode sheet as a whole.

[0051] The all-solid-state battery test mold 100 provided by the present application first drives the first current collector 131 and the second current collector 132 to approach each other by a press to pressurize the solid electrolyte alone, and then drives the first current collector 131 and the second current collector 132 to approach each other by a press to pressurize the entire positive electrode sheet, solid electrolyte, and negative electrode sheet, effectively improving the pressurization effect on the all-solid-state battery, thereby improving the accuracy of the all-solid-state battery test. It avoids the technical problem in the prior art that directly pressurizing the entire positive electrode sheet, solid electrolyte, and negative electrode sheet results in poor pressurization effect and affects the accuracy of the all-solid-state battery test.

[0052] As Figure 1 and Figure 2 shown, in an embodiment of the present application, the all-solid-state battery test mold 100 further includes an insulating assembly 140. The insulating assembly 140 includes a first insulating member 141 and a second insulating member 142. The first insulating member 141 is disposed at one end of the first current collector 131 away from the accommodation cavity 1121, and the second insulating member 142 is disposed at one end of the second current collector 132 away from the accommodation cavity 1121.

[0053] In this embodiment, by respectively disposing the first insulating member 141 and the second insulating member 142 at one ends of the first current collector 131 and the second current collector 132 away from the accommodation cavity 1121, on the one hand, it can avoid the technical problem of short circuit caused by the contact between the first current collector 131 and the second current collector 132 and the press or other external metal parts under the insulating action of the first insulating member 141 and the second insulating member 142. On the other hand, under the supporting action of the first insulating member 141 and the second insulating member 142 on the first current collector 131 and the second current collector 132 respectively, the press can also drive the first insulating member 141 and the second insulating member 142 to stably pressurize the first current collector 131 and the second current collector 132.

[0054] In an embodiment of the present application, the first current collector 131 is provided with a first wiring hole for electrically connecting to an external power line. The first wiring hole is located on the side of the first cover 121 away from the main body 110. The second current collector 132 is provided with a second wiring hole for electrically connecting to an external power line. The second wiring hole is located on the side of the second cover 122 away from the main body 110.

[0055] In this embodiment, a first wiring hole and a second wiring hole electrically connected to an external power line are respectively formed in the first current collector 131 and the second current collector 132, so that the all-solid-state battery in the accommodation cavity 1121 can be electrically connected to the blue battery system, thereby performing charge and discharge cycle detection on the all-solid-state battery in the accommodation cavity 1121. At the same time, by arranging the first wiring hole and the second wiring hole on the sides of the first cover 121 and the second cover 122 away from the main body 110 respectively, the first wiring hole and the second wiring hole are located outside the cover assembly, which facilitates the connection between the first current collector 131 and the second current collector 132 and the external power line.

[0056] In an embodiment of the present application, both the first current collector 131 and the second current collector 132 are integrally formed by plating a dense metal layer on the surface of tungsten steel material.

[0057] In this embodiment, both the first current collector 131 and the second current collector 132 are integrally formed by plating a dense metal layer on the surface of tungsten steel material. On the one hand, this can effectively improve the processing accuracy of the first current collector 131 and the second current collector 132, making the sliding between the first current collector 131 and the second current collector 132 and the cavity wall of the accommodation cavity 1121 smoother, reducing the probability of sliding jamming between the first current collector 131 and the second current collector 132 and the cavity wall of the accommodation cavity 1121, thereby improving the smoothness and convenience of taking out or loading the first current collector 131 and the second current collector 132 into the accommodation cavity 1121. On the other hand, it can also effectively improve the corrosion resistance of the first current collector 131 and the second current collector 132, thereby effectively extending the use stability and service life of the all-solid-state battery test mold 100.

[0058] As Figure 2 and Figure 4 shown, in any of the above embodiments of the present application, a first external thread 1132 is provided on the outer circumferential wall of one end of the main body 110 having the first opening 1131, the first cover 121 is provided with a first internal thread 1212 that matches the first external thread 1132, a second external thread 1113 is provided on the outer circumferential wall of one end of the main body 110 having the second opening 1112, and the second cover 122 is provided with a second internal thread 1222 that matches the second external thread 1113.

[0059] In this embodiment, a first external thread 1132 is provided on the outer circumferential wall of one end of the main body 110 having the first opening 1131, and a first internal thread 1212 that mates with the first external thread 1132 is provided on the first cover 121, so as to achieve the function of detachably connecting the first cover 121 to the end of the main body 110 having the first opening 1131. At the same time, a second external thread 1113 is provided on the outer circumferential wall of one end of the main body 110 having the second opening 1112, and a second internal thread 1222 that mates with the second external thread 1113 is provided on the second cover 122, so as to achieve the function of detachably connecting the second cover 122 to the end of the main body 110 having the second opening 1112.

[0060] As Figure 1 shown, in the above-mentioned embodiment of the present application, wrench positions 123 are provided on the outer circumferential walls of both the first cover 121 and the second cover 122.

[0061] In this embodiment, by providing wrench positions 123 on the outer circumferential walls of both the first cover 121 and the second cover 122, it is convenient for testers to tighten or loosen the first cover 121 and the second cover 122 with a wrench, thereby effectively improving the installation and disassembly efficiency of the first cover 121 and the second cover 122.

[0062] As Figure 2 、 Figure 3 and Figure 4 shown, in the above-mentioned embodiment of the present application, the main body 110 includes a housing 111, an inner core 112, an end cap 113, and a third seal 114.

[0063] Among them, the housing 111 has a receiving groove 1111 and is provided with the second opening 1112 communicating with the receiving groove 1111. The second external thread 1113 is provided on the outer circumferential wall of the end of the housing 111 having the second opening 1112. The inner core 112 is disposed in the receiving groove 1111 and is provided with the receiving cavity 1121. The end cap 113 is covered at the notch of the receiving groove 1111 and is detachably connected to the end of the housing 111 away from the second opening 1112. The end cap 113 is provided with the first opening 1131, and the first external thread 1132 is provided on the outer circumferential wall of the end of the end cap 113 having the first opening 1131. The third seal 114 abuts between the inner core 112 and the end cap 113.

[0064] In this embodiment, by covering the end cap 113 at the notch of the receiving groove 1111 and detachably connecting it to the end of the outer shell 111 away from the second opening 1112, the detachable connection method can be screw connection or snap connection. In this way, on the one hand, it is convenient to install the inner core 112 into the receiving groove 1111 of the outer shell 111 and enables the inner core 112 to be stably installed in the receiving groove 1111. On the other hand, it is also convenient to disassemble, repair, or replace the inner core 112.

[0065] By providing a third seal 114 between the inner core 112 and the end cap 113 that abuts against the inner core 112 and the end cap 113 respectively, to seal the gap between the inner core 112 and the end cap 113 under the action of the third seal 114, effectively improving the airtightness, thereby effectively preventing the technical problem that the solid electrolyte in the accommodation cavity 1121 comes into contact with the outside air and causes the solid electrolyte to fail during the testing process of the all-solid-state battery.

[0066] Exemplarily, the material of the inner core 112 can be ceramic, and the materials of the outer shell 111, the end cap 113, the first cover 121, and the second cover 122 are all electrochemically stable insulating materials. The third seal 114 can be an O-ring.

[0067] As Figure 2 and Figure 4 shown, in the above embodiment of the present application, the all-solid-state battery test mold 100 further includes a first sealing assembly 150 and a second sealing assembly 160. A first limiting groove 1213 is formed on the side of the first cover 121 close to the main body 110, and a second limiting groove 1223 is formed on the side of the second cover 122 close to the main body 110. The first sealing assembly 150 is disposed in the first opening 1131, abuts against the inner core 112 and the first limiting groove 1213 respectively, and abuts against the circumferential wall of the first current collector 131. The second sealing assembly 160 is disposed in the second opening 1112, abuts against the inner core 112 and the second limiting groove 1223 respectively, and abuts against the circumferential wall of the second current collector 132.

[0068] In this embodiment, a first limiting groove 1213 is formed on one side of the first cover body 121 close to the main body 110, and the first sealing assembly 150 is disposed in the first opening 1131 and abuts against the inner core 112 and the first limiting groove 1213 respectively, and abuts against the circumferential wall of the first current collector 131. In this way, when the first internal thread 1212 of the first cover body 121 is in place in cooperation with the first external thread 1132 of the end cover 113, the first sealing assembly 150 can be in pressing contact with the inner core 112 and the first limiting groove 1213 respectively, so that the first sealing assembly 150 is in pressing contact with the circumferential wall of the first current collector 131 under the extrusion action, thereby sealing the gap between the first current collector 131 and the first through hole 1211, further improving the airtightness, and further preventing the technical problem that the solid electrolyte in the accommodation cavity 1121 comes into contact with the external air and causes the solid electrolyte to fail during the test of the all-solid-state battery.

[0069] Meanwhile, a second limiting groove 1223 is formed on one side of the second cover body 122 close to the main body 110, and the second sealing assembly 160 is disposed in the second opening 1112 and abuts against the inner core 112 and the second limiting groove 1223 respectively, and abuts against the circumferential wall of the second current collector 132. In this way, when the second internal thread 1222 of the second cover body 122 is in place in cooperation with the second external thread 1113 of the outer shell 111, the second sealing assembly 160 can be in pressing contact with the inner core 112 and the second limiting groove 1223 respectively, so that the second sealing assembly 160 is in pressing contact with the circumferential wall of the second current collector 132 under the extrusion action, thereby sealing the gap between the second current collector 132 and the second through hole 1221, further improving the airtightness, and further preventing the technical problem that the solid electrolyte in the accommodation cavity 1121 comes into contact with the external air and causes the solid electrolyte to fail during the test of the all-solid-state battery.

[0070] In addition, both the first limiting groove 1213 and the second limiting groove 1223 can play a role in limiting to control the deformation degree of the first sealing assembly 150 and the second sealing assembly 160, and avoid excessive extrusion of the first sealing assembly 150 and the second sealing assembly 160 by the first cover body 121 and the second cover body 122, resulting in too large deformation of the first sealing assembly 150 and the second sealing assembly 160 and causing damage, resulting in the technical problem of sealing failure.

[0071] Such as Figure 2 and Figure 4As shown, in the above embodiments of the present application, the first sealing assembly 150 includes a first seal 151 and a first pressing member 152. There are two first seals 151 and two first pressing members 152. The two first seals 151 and the two first pressing members 152 are alternately arranged along the axial direction of the first current collector 131 in the first opening 1131 in sequence.

[0072] The second sealing assembly 160 includes a second seal 161 and a second pressing member 162. There are two second seals 161 and two second pressing members 162. The two second seals 161 and the two second pressing members 162 are alternately arranged along the axial direction of the second current collector 132 in the second opening 1112 in sequence.

[0073] In this embodiment, by setting the number of the first seals 151 and the first pressing members 152 to two each, and alternately arranging the two first seals 151 and the two first pressing members 152 along the axial direction of the first current collector 131 in the first opening 1131, the gap between the first current collector 131 and the first through hole 1211 can be further sealed, thereby further improving the airtightness. Furthermore, during the testing process of the all-solid-state battery, the technical problem that the solid electrolyte in the accommodation cavity 1121 comes into contact with the outside air and causes the solid electrolyte to fail can be further prevented.

[0074] Meanwhile, by setting the number of the second seals 161 and the second pressing members 162 to two each, and alternately arranging the two second seals 161 and the two second pressing members 162 along the axial direction of the second current collector 132 in the second opening 1112, the gap between the second current collector 132 and the second through hole 1221 can be further sealed, thereby further improving the airtightness. Furthermore, during the testing process of the all-solid-state battery, the technical problem that the solid electrolyte in the accommodation cavity 1121 comes into contact with the outside air and causes the solid electrolyte to fail can be further prevented.

[0075] Exemplarily, both the first seal 151 and the second seal 161 are O-ring seals, and the materials of the first pressing member 152 and the second pressing member 162 are both electrochemically stable insulating materials.

[0076] The embodiment of the present application further provides a testing device, including the all-solid-state battery testing mold 100 described in the above embodiments.

[0077] It should be noted that the test device further includes a press and a blue electricity system. The all-solid-state battery test mold 100 is disposed on the press, and the press is used to drive the first current collector 131 and the second current collector 132 to approach each other, so as to pressurize the positive electrode sheet, the solid electrolyte and the negative electrode sheet of the all-solid-state battery in the accommodation cavity 1121. At the same time, the first current collector 131 and the second current collector 132 are respectively electrically connected to the blue electricity system through external power lines to perform charge and discharge cycle detection on the all-solid-state battery in the accommodation cavity 1121.

[0078] The test device has the all-solid-state battery test mold 100 in any of the above embodiments, so it has all the beneficial effects of the all-solid-state battery test mold 100, which will not be elaborated here one by one.

[0079] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0080] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A full-solid-state battery test mold, characterized in that, Comprising: A main body having a receiving cavity and having a first opening and a second opening respectively communicating with two ends of the receiving cavity; A cover assembly, the cover assembly includes a first cover body and a second cover body, the first cover body is detachably connected to one end of the main body having the first opening and is provided with a first through hole communicating with the first opening, the second cover body is detachably connected to one end of the main body having the second opening and is provided with a second through hole communicating with the second opening; A current collecting assembly, the current collecting assembly includes a first current collecting member and a second current collecting member, one end of the first current collecting member is located on the side of the first cover body away from the main body, and the other end sequentially passes through the first through hole and the first opening and is movably arranged in the receiving cavity, one end of the second current collecting member is located on the side of the second cover body away from the main body, and the other end sequentially passes through the second through hole and the second opening and is movably arranged in the receiving cavity and abuts against the first current collecting member.

2. The all-solid-state battery test mold according to claim 1, wherein The all-solid-state battery test mold further includes an insulating assembly, the insulating assembly includes a first insulating member and a second insulating member, the first insulating member is arranged at one end of the first current collecting member away from the receiving cavity, and the second insulating member is arranged at one end of the second current collecting member away from the receiving cavity.

3. The all-solid-state battery test mold according to claim 1, wherein The first current collecting member is provided with a first wiring hole for electrically connecting with an external power supply line, the first wiring hole is located on the side of the first cover body away from the main body, the second current collecting member is provided with a second wiring hole for electrically connecting with an external power supply line, and the second wiring hole is located on the side of the second cover body away from the main body.

4. The all-solid-state battery test mold according to claim 1, wherein Both the first current collecting member and the second current collecting member are integrally formed by plating a dense metal layer on the surface of tungsten steel material.

5. The all-solid-state battery test mold according to any one of claims 1 to 4, characterized in that, A first external thread is provided on the outer circumferential wall of one end of the main body having the first opening, a first internal thread is provided on the first cover body and is matched with the first external thread, a second external thread is provided on the outer circumferential wall of one end of the main body having the second opening, and a second internal thread is provided on the second cover body and is matched with the second external thread.

6. The all-solid-state battery test mold according to claim 5, wherein, Wrench positions are provided on the outer circumferential walls of both the first cover body and the second cover body.

7. The all-solid-state battery test mold according to claim 5, wherein The main body includes: A housing having a receiving groove and having the second opening communicating with the receiving groove, and a second external thread is provided on the outer circumferential wall of one end of the housing having the second opening; An inner core arranged in the receiving groove and having the receiving cavity; An end cover covering the notch of the receiving groove and detachably connected to one end of the housing away from the second opening, the end cover is provided with the first opening, and a first external thread is provided on the outer circumferential wall of one end of the end cover having the first opening; A third sealing member abuts between the inner core and the end cover.

8. The all-solid-state battery test mold according to claim 7, wherein The all-solid-state battery test mold further includes a first sealing assembly and a second sealing assembly. A first limiting groove is formed on one side of the first cover body close to the main body, and a second limiting groove is formed on one side of the second cover body close to the main body. The first sealing assembly is disposed in the first opening, abuts against the inner core and the first limiting groove respectively, and abuts against the circumferential wall of the first current collector. The second sealing assembly is disposed in the second opening, abuts against the inner core and the second limiting groove respectively, and abuts against the circumferential wall of the second current collector.

9. The all-solid-state battery test mold according to claim 8, characterized in that, The first sealing assembly includes a first sealing member and a first pressing member. There are two first sealing members and two first pressing members. The two first sealing members and the two first pressing members are alternately arranged in the first opening along the axial direction of the first current collector in sequence. The second sealing assembly includes a second sealing member and a second pressing member. There are two second sealing members and two second pressing members. The two second sealing members and the two second pressing members are alternately arranged in the second opening along the axial direction of the second current collector in sequence.

10. A test device, characterized in that, Comprising the all-solid-state battery test mold according to any one of claims 1 to 9.

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