Solid-state battery test mold capable of performing in-situ test outside glove box

Abstract

The utility model discloses a solid-state battery testing mold capable of performing in-situ testing outside a glove box. The solid-state battery testing mold capable of performing in-situ testing outside the glove box comprises a positive current collector, a negative current collector, a two-half outer sleeve, an inner sleeve (containing inner-layer quartz) and a sealing structure. After the glove box is connected with a battery charging and discharging system outside the glove box, in-situ characterization is carried out on the charging and discharging mechanism of the solid-state battery in cooperation with Raman, X-ray photoelectron spectroscopy (XPS) and synchrotron radiation (XAFS), and the solid-state battery testing mold has the advantages of being high in sealing performance, transparent and resistant to pressure. The key problem that in-situ characterization testing and mechanism detection are difficult to carry out on the solid-state battery at present can be solved.

Description

Technical Field

[0001] This utility model specifically relates to a solid-state battery test mold that can be used for in-situ testing outside a glove box, belonging to the field of secondary battery testing technology. Background Technology

[0002] Solid-state batteries, as a next-generation lithium battery development direction and one of the possible directions for energy storage batteries, have received considerable attention from both industry and academia. However, solid-state batteries mainly face challenges such as interface contact issues, poor low-temperature performance, technical and mass production difficulties, and safety and testing challenges. To solve these problems, in-depth research into the charge-discharge mechanism of solid-state batteries is needed to fundamentally address these issues. However, in the laboratory, solid-state batteries are typically tested in glove boxes using opaque molds, making it extremely difficult to explore their mechanisms. On the one hand, large characterization equipment such as Raman, XPS, and XAFS cannot be placed inside the glove box; on the other hand, even if characterization equipment exists that can be placed inside the glove box, it cannot be used directly due to the opacity of the mold.

[0003] Therefore, it is necessary to develop a new type of solid-state battery test mold that can be used outside the glove box and has good light transmittance, so that it can be used in conjunction with large-scale characterization equipment for in-situ testing. Utility Model Content

[0004] To address the problem that existing solid-state battery test molds are difficult to test in situ outside the glove box, the main objective of this invention is to provide a light-transmitting solid-state battery test mold that can be tested in situ outside the glove box, thereby overcoming the shortcomings of the prior art.

[0005] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:

[0006] This utility model embodiment provides a solid-state battery test mold that can be used for in-situ testing outside a glove box, comprising: a blind plate, an inner sleeve, a negative electrode current collector, an outer sleeve, a positive electrode current collector, and a transparent plate.

[0007] The inner sleeve is disposed between the negative current collector and the positive current collector along a first direction. A portion of the negative current collector and a portion of the positive current collector are fitted inside the inner sleeve. The blind plate is detachably disposed inside the inner sleeve. The blind plate has no direct contact with the negative current collector and the positive current collector. The inner sleeve, the blind plate, the negative current collector, and the positive current collector together enclose a battery forming cavity. The battery forming cavity is used to accommodate the precursor material for forming the battery. The outer sleeve is detachably fitted outside the inner sleeve. The outer sleeve is in close contact with the inner sleeve, the negative current collector, and the positive current collector. The outer sleeve makes the battery forming cavity a sealed space isolated from the outside. The blind plate is disposed on one side of the battery forming cavity along a second direction. The transparent plate is disposed on the side of the blind plate opposite to the battery forming cavity along the second direction. The transparent plate and the inner sleeve are configured together to form an observation window that allows the inside of the battery forming cavity to be viewed from the outside. The inner sleeve and the blind plate are both insulating components. The first direction and the second direction intersect.

[0008] Furthermore, the inner sleeve has a first surface, a second surface, and a third surface located on one side of the inner sleeve along a first direction, facing away from each other. The inner sleeve has a cavity and an assembly groove inside. The cavity communicates with the first surface and the second surface. The assembly groove is located on one side of the cavity along the second direction and communicates with the cavity and the first surface, respectively. A portion of the negative current collector and a portion of the positive current collector are disposed in the cavity. The blind plate, the negative current collector, the positive current collector, and the cavity together enclose the battery forming cavity.

[0009] Furthermore, the surface layer of the cavity and the assembly groove is a quartz layer.

[0010] Furthermore, the assembly groove is located on the outer side of the inner wall of the cavity, and the assembly groove is connected to the inner wall of the cavity. The blind plate can be inserted into or removed from the first slot of the assembly groove located on the first surface.

[0011] Furthermore, the assembly slot has a contoured structure with the same shape as the blind plate.

[0012] Furthermore, the transparent plate is integrally formed with the inner sleeve, or the assembly groove also has a second slot communicating with the third surface, the transparent plate is fixedly combined with the inner sleeve, and the transparent plate covers the second slot.

[0013] Furthermore, the outer casing includes two outer casing bodies, and the solid-state battery test mold further includes a first connecting assembly. The two outer casing bodies are disposed on both sides of the inner casing along the second direction. The two outer casing bodies are detachably connected via the first connecting assembly and are in close contact with the inner casing, the negative current collector, and the positive current collector via the first connecting assembly.

[0014] Furthermore, the first connecting component is a bolt and nut assembly.

[0015] In a more specific implementation, the solid-state battery test mold that can be tested in situ outside the glove box further includes a second connecting component, wherein the negative electrode current collector and the positive electrode current collector are also connected via the second connecting component, and the second connecting component is also used to provide a clamping force that presses the negative electrode current collector and the positive electrode current collector against the precursor material located in the battery forming cavity along the first direction.

[0016] Furthermore, the second connection assembly includes a bolt and nut assembly.

[0017] Furthermore, the negative current collector includes a first base portion and a first current collector portion, the first current collector portion being vertically fixed on the first base portion, and the radial cross-sectional area of ​​the first base portion being larger than the radial cross-sectional area of ​​the first current collector portion. The positive current collector includes a second base portion and a second current collector portion, the second current collector portion being vertically fixed on the second base portion, and the radial cross-sectional area of ​​the second base portion being larger than the radial cross-sectional area of ​​the second current collector portion. The second connecting assembly is connected to the first base portion and the second base portion respectively, and one end of the first current collector portion and the second current collector portion is disposed in the inner sleeve.

[0018] In a more specific implementation, the solid-state battery test mold that can be tested in situ outside the glove box further includes: a sealing structure disposed between the inner sleeve and the negative electrode current collector and the positive electrode current collector.

[0019] Furthermore, the sealing structure includes a sealing ring, a hot melt adhesive structure, or a magnetohydrodynamic sealing structure.

[0020] Compared with the prior art, the advantages of this utility model include: the solid-state battery test mold provided by the embodiment of this utility model can be tested in situ outside the glove box. It has a simple structure, is easy to use, disassemble and maintain, can quickly realize in-situ testing of solid-state batteries outside the glove box, and can withstand longitudinal / lateral pressure.

[0021] This utility model provides a solid-state battery test mold that can be used for in-situ testing outside a glove box. After being connected to the battery charging and discharging system outside the glove box, it can be used with Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and synchrotron radiation (XAFS) to characterize the charging and discharging mechanism of solid-state batteries in situ. Relying on its advantages of high sealing, transparency, and pressure resistance, this solid-state battery test mold can solve the key problem of the difficulty in conducting in-situ characterization tests and elucidating the mechanism of solid-state batteries. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is an exploded view of a portion of the structure of a solid-state battery test mold that can be tested in situ outside a glove box, as provided in a typical embodiment of this utility model.

[0024] Figure 2 This is a schematic diagram of the assembled structure of the outer sleeve, inner sleeve, and negative electrode current collector of a solid-state battery test mold that can be tested in situ outside a glove box, provided in a typical embodiment of this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of a solid-state battery test mold that can be tested in situ outside a glove box after inserting the precursor material for forming a battery.

[0026] Figure 4 This is a schematic diagram of the structure of a solid-state battery test mold that can be tested in situ outside a glove box after the positive electrode current collector is assembled, as provided in a typical embodiment of this utility model.

[0027] Figure 5 This is a schematic diagram of the structure of a solid-state battery test mold that can be tested in situ outside a glove box, as provided in a typical embodiment of this utility model.

[0028] Figure 6 This is a schematic diagram of the structure of a solid-state battery test mold that can be tested in situ outside the glove box after removing the blind plate, as provided in a typical embodiment of this utility model.

[0029] Figure 7 This is a Raman in-situ characterization diagram of the positive electrode layer of a solid-state battery according to Embodiment 1 of this utility model;

[0030] Figure 8 This is an XPS in-situ characterization image of the solid-state battery electrolyte layer in Embodiment 2 of this utility model;

[0031] Figure 9 This is an XPS in-situ characterization diagram of the solid-state battery composite cathode layer in Embodiment 3 of this utility model. Detailed Implementation

[0032] In view of the shortcomings of the prior art, the inventor of this case, through long-term research and extensive practice, has proposed the technical solution of this utility model. The following will further explain and illustrate the technical solution, its implementation process and principle in conjunction with the accompanying drawings and specific implementation examples. Unless otherwise specified, the inner sleeve, outer sleeve, bolt and nut assembly, etc. involved in the embodiments of this utility model are all known in the art, and can be obtained by commercial purchase or by processing using processes known in the art, and are not limited here.

[0033] In a typical implementation case, please refer to Figure 5 A solid-state battery test mold that can be tested in situ outside a glove box includes a blind plate 10, an inner sleeve 20, a negative electrode current collector 30, an outer sleeve 40, a positive electrode current collector 50, a transparent plate 60, multiple sets of first connecting components 70, and multiple sets of second connecting components 80. The blind plate 10 and the inner sleeve 20 are both insulating components.

[0034] The inner sleeve 20 has a first surface, a second surface, and a third surface located on one side of the inner sleeve 20 along a first direction, facing away from each other. The inner sleeve 20 has a cavity 21 and a mounting groove 22 inside. The cavity 21 communicates with the first surface, the second surface, and the third surface. The mounting groove 22 is located on one side of the cavity 21 along the second direction and communicates with both the cavity 21 and the first surface. The blind plate 10 is detachably disposed within the mounting groove 22. The inner sleeve 20 is disposed between the negative current collector 30 and the positive current collector 50 along the first direction. A portion of the negative current collector 30 and a portion of the positive current collector 50 are disposed within the cavity. The blind plate 10 has no direct contact with the negative current collector 30 and the positive current collector 50. The blind plate 10, the negative current collector 30, the positive current collector 50, and the cavity 22 together enclose a battery forming cavity, which is used to accommodate the precursor material for forming the battery.

[0035] The transparent plate 60 is disposed along the second direction on the side of the blind plate 10 opposite to the battery molding cavity. The transparent plate 60 and the inner sleeve 20 are configured together to form an observation window that allows the interior of the battery molding cavity to be viewed from the outside. The two outer sleeves 40 are disposed on both sides of the inner sleeve 20 along the second direction. The outer sleeve 40 includes two outer sleeves 41, which are detachably connected by the first connecting component 70 and are in close contact with the inner sleeve 20, the negative current collector 30, and the positive current collector 50 via the first connecting component 70. The negative current collector 30 and the positive current collector 50 are also connected by the second connecting component 80. The second connecting component 80 is also used to provide a fastening force that presses the negative current collector 30 and the positive current collector 50 against the precursor material located in the battery molding cavity along the first direction. The first direction and the second direction intersect, preferably perpendicularly.

[0036] Specifically, the assembly groove 22 is located on the outer side of the inner wall of the cavity 21. The assembly groove 22 is connected to the inner wall of the cavity 21. The assembly groove 22 has a contoured structure with the same shape as the blind plate 10. The size of the assembly groove 22 is slightly larger than the size of the blind plate 10. The blind plate 10 can be inserted into or removed from the first slot of the assembly groove 22 located on the first surface. The assembly groove 22 can be understood as being formed by recessing outward from the inner wall of the cavity 21.

[0037] Specifically, the transparent plate 60 may be integrally formed with the inner sleeve 20, or the assembly groove 22 may also have a second groove that communicates with the third surface. The transparent plate 60 is fixedly connected with the inner sleeve 20, and the transparent plate 60 covers the second groove and forms an observation window. When the blind plate 10 is removed, the inside of the battery forming cavity can be observed through the observation window formed by the transparent plate 60.

[0038] Specifically, the inner sleeve 20 has a rectangular parallelepiped structure, and similarly, the outer sleeve formed by the two outer sleeves 41 also has a rectangular parallelepiped structure. The opposite sides of the two outer sleeves 41 have groove-shaped structures 42 that match the shapes of the inner sleeve 20, the positive current collector 50, and the negative current collector 30. That is, the inner sleeve 20 and a portion of the positive current collector 50 and negative current collector 30 near the inner sleeve 20 are encapsulated within the outer sleeve 40, which is formed by the two outer sleeves 41 fixedly joined by multiple first connecting components 70. To improve the sealing of the battery forming cavity, a sealing structure is provided between the inner sleeve 20, the outer sleeve 40, and the negative current collector 30 and positive current collector 50. This sealing structure can be a sealing ring, a hot melt adhesive structure, or a magnetic fluid sealing structure, etc. More specifically, the first connecting components 70 are bolt and nut assemblies, and multiple first connecting components 70 are evenly distributed around the two outer sleeves 41. Specifically, the combination of the outer sleeve 40 and the first connecting components 70 connected to it can withstand lateral pressure to prevent the inner sleeve 20 from bearing pressure.

[0039] Specifically, the negative current collector 30 includes a first base portion 31 and a first current collector portion 32. The first current collector portion 32 is vertically fixed on the first base portion 31. The radial cross-sectional area of ​​the first base portion 31 is larger than that of the first current collector portion 32. The positive current collector 50 includes a second base portion 51 and a second current collector portion 52. The second current collector portion 52 is vertically fixed on the second base portion 51. The radial cross-sectional area of ​​the second base portion 51 is larger than that of the second current collector portion 52. The second connecting assembly 80 is connected to the first base portion 31 and the second base portion 51 respectively. One end of the first current collector portion and the second current collector portion 52 is disposed in the inner sleeve 20. More specifically, the second connecting assembly 80 is preferably a bolt and nut assembly. Multiple second connecting assemblies 80 are evenly distributed around the negative current collector 30 and the positive current collector 50. The tightening force applied to the negative current collector 30 and the positive current collector 50 can be changed by tightening the bolts or nuts in the bolt and nut assembly. Of course, the bolts in the first connecting component 70 and the second connecting component 80 can also be replaced with threaded components such as screws.

[0040] In a more specific implementation, the method of using the solid-state battery test mold that can be used for in-situ testing outside the glove box specifically includes:

[0041] Step 1: As Figure 1 As shown, the blind flange 10 is inserted into the mounting slot 22 of the inner sleeve 20 inside the glove box, so that it fits against the transparent plate 60 in the inner sleeve 20. The materials of the blind flange 10 and the inner sleeve 20 can be the same or different, and are non-conductive and pressure-resistant materials.

[0042] Step 2: Inside the glove box, place the inner sleeve 20 of the blind plate 10 onto the negative current collector 30, ensuring that the blind plate 10 does not contact the negative current collector 30.

[0043] Step 3: As Figure 2 As shown, inside the glove box, the two halves of the outer sleeve 41 are respectively placed on both sides of the inner sleeve 20 and tightened with four bolts;

[0044] Step Four: As Figure 3 and Figure 4 As shown, the negative electrode, electrolyte, and positive electrode, which serve as the precursor materials for the battery, are loaded into the cavity 21 of the inner sleeve 20 in one go inside the glove box, and then pressed together using a positive electrode current collector 50 and a hydraulic press under a specified pressure. In this step, the sheet formed by pressing the negative electrode, electrolyte, and positive electrode should be visible through the transparent plate 60 after removing the two halves of the outer sleeve 40 and the blind plate 10. The specified pressure is 1-100 MPa, depending on the properties of the materials themselves.

[0045] Step 5: As Figure 5 As shown, tighten the bolts that pass through the negative current collector 30 and the positive current collector 50 inside the glove box so that the entire mold battery can maintain pressure. The pressure is 1-100 MPa, depending on the properties of the material itself. The number of bolts is 1-10, depending on the required pressure.

[0046] Step 6: Seal the gaps between the inner sleeve 20 and the negative current collector 30 and the positive current collector 50 inside the glove box. The sealing method can be hot melt adhesive sealing, rubber ring sealing and magnetohydrodynamic sealing.

[0047] Step 7: After letting the glove box stand for a period of time, loosen the four bolts on the outer sleeve 40, remove the outer sleeve 40, and then remove the blind flange 10 on the inner sleeve 20 to expose the transparent plate 60. Check if the transparent plate 60 is intact. Figure 6 As shown;

[0048] Step 8: Remove the assembled battery from the glove box and send it to the designated characterization equipment for charge-discharge cycle and in-situ characterization tests. The characterization equipment is Raman, XPS and XAFS, etc., which can perform in-situ tests.

[0049] Step 9: After the test, remove and clean the mold, and return it to its original state.

[0050] Example 1

[0051] A method for in-situ characterization of solid-state batteries includes the following steps:

[0052] Step 1: As Figure 1As shown, the blind flange 10 is inserted into the mounting slot of the inner sleeve 20 inside the glove box, so that it fits against the transparent plate 60 in the inner sleeve 20.

[0053] Step 2: Inside the glove box, place the inner sleeve 20 of the blind plate 10 onto the negative current collector 30, ensuring that the blind plate 10 does not contact the negative current collector 30.

[0054] Step 3: As Figure 2 As shown, inside the glove box, the two halves of the outer sleeve 40 are respectively placed on the inner sleeve 20 and tightened with four bolts;

[0055] Step Four: As Figure 3 and Figure 4 As shown, the negative electrode, electrolyte, and positive electrode are loaded into the inner sleeve at once inside the glove box, and a positive electrode current collector 50 and a hydraulic press are used to pressurize the material at 200 MPa. In this step, the sheet formed by pressing the negative electrode, electrolyte, and positive electrode (Li2S composite positive electrode) should be visible through the transparent plate 60 after the two halves of the outer sleeve 40 and the blind plate 10 are removed.

[0056] Step 5: As Figure 5 As shown, tighten the bolts that pass through the negative current collector 30 and the positive current collector 50 inside the glove box so that the entire mold battery can maintain pressure, maintaining a pressure of 200 MPa.

[0057] Step 6: Seal the gaps between the inner sleeve 20 and the negative current collector 30 and the positive current collector 50 in the glove box using hot melt adhesive.

[0058] Step 7: After letting the glove box stand for a period of time, loosen the 4 bolts on the outer cover, remove the outer cover 40, and then remove the blind plate 10 on the inner cover 20 to expose the transparent plate 60. Determine whether the transparent plate 60 is intact.

[0059] Step 8: Remove the assembled battery from the glove box and send it to the Raman equipment for charge-discharge cycle and in-situ characterization tests. The test results are as follows: Figure 7 As shown;

[0060] Step 9: After the test, remove and clean the mold, and return it to its original state.

[0061] Example 2

[0062] A method for in-situ characterization of solid-state batteries includes the following steps:

[0063] Step 1: As Figure 1 As shown, the blind flange 10 is inserted into the mounting slot of the inner sleeve 20 inside the glove box, so that it fits against the transparent plate 60 in the inner sleeve 20.

[0064] Step 2: Inside the glove box, place the inner sleeve 20 of the blind plate onto the negative current collector 30, ensuring that the blind plate portion does not contact the negative current collector 30.

[0065] Step 3: As Figure 2 As shown, inside the glove box, the two halves of the outer sleeve 40 are respectively placed on the inner sleeve 20 and tightened with four bolts;

[0066] Step Four: As Figure 3 and Figure 4 As shown, the negative electrode, electrolyte, and positive electrode are loaded into the inner sleeve at once inside the glove box, and the positive electrode current collector 50 and a hydraulic press are used to pressurize the material at 400 MPa. In this step, the sheet formed by pressing the negative electrode, electrolyte (lithium, phosphorus, sulfur, and chlorine) and positive electrode should be visible through the transparent plate 60 after the two halves of the outer sleeve 40 and the blind plate 10 are removed.

[0067] Step 5: As Figure 5 As shown, tighten the bolts that pass through the negative current collector 30 and the positive current collector 50 inside the glove box so that the entire mold battery can maintain pressure, maintaining a pressure of 100 MPa.

[0068] Step 6: Seal the gaps between the inner sleeve 20 and the negative current collector 30 and the positive current collector 50 in the glove box using hot melt adhesive.

[0069] Step 7: After letting the glove box stand for a period of time, loosen the two bolts on the outer cover, remove the outer cover, and then remove the blind plate on the inner cover to expose the transparent plate 60. Check whether the transparent plate 60 is intact.

[0070] Step 8: Remove the assembled battery from the glove box and send it to the XPS equipment for charge-discharge cycle and in-situ characterization tests. The test results are as follows: Figure 8 As shown;

[0071] Step 9: After the test, remove and clean the mold, and return it to its original state.

[0072] Example 3

[0073] A method for in-situ characterization of solid-state batteries includes the following steps:

[0074] Step 1: As Figure 1 As shown, the blind flange 10 is inserted into the mounting slot of the inner sleeve 20 inside the glove box, so that it fits against the transparent plate 60 in the inner sleeve 20.

[0075] Step 2: Inside the glove box, place the inner sleeve 20 of the blind plate onto the negative current collector 30, ensuring that the blind plate portion does not contact the negative current collector 30.

[0076] Step 3: As Figure 2As shown, inside the glove box, the two halves of the outer sleeve 40 are respectively placed on the inner sleeve 20 and tightened with four bolts;

[0077] Step Four: As Figure 3 and Figure 4 As shown, the negative electrode, electrolyte, and positive electrode are loaded into the inner sleeve at once inside the glove box, and a positive electrode current collector 50 and a hydraulic press are used to pressurize the material at 800 MPa. In this step, the sheet formed by pressing the negative electrode, electrolyte, and positive electrode (a mixture of lithium, phosphorus, sulfur, chlorine, and carbon) should be visible through the transparent plate 60 after the two halves of the outer sleeve 40 and the blind plate 10 are removed.

[0078] Step 5: As Figure 5 As shown, tighten the bolts that pass through the negative current collector 30 and the positive current collector 50 inside the glove box so that the entire mold battery can maintain pressure, maintaining a pressure of 400 MPa.

[0079] Step 6: Seal the gaps between the inner sleeve 20 and the negative current collector 30 and the positive current collector 50 in the glove box using hot melt adhesive.

[0080] Step 7: After letting the glove box stand for a period of time, loosen the 4 bolts on the outer cover, remove the outer cover, and then remove the blind plate on the inner cover to expose the transparent plate 60. Check whether the transparent plate 60 is intact.

[0081] Step 8: Remove the assembled battery from the glove box and send it to the XPS equipment for charge-discharge cycle and in-situ characterization tests. The test results are as follows: Figure 9 As shown;

[0082] Step 9: After the test, remove and clean the mold, and return it to its original state.

[0083] It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A solid-state battery test mold that can be tested in situ outside a glove box, characterized by, The solid-state battery test mold comprises: a blind plate, an inner sleeve, a negative current collector, an outer sleeve, a positive current collector, and a transparent plate, the inner sleeve is arranged between the negative current collector and the positive current collector along a first direction, a part of the negative current collector and a part of the positive current collector are sleeved inside the inner sleeve, the blind plate is arranged inside the inner sleeve in a detachable manner, the blind plate has no direct contact with the negative current collector and the positive current collector, the inner sleeve, the blind plate, the negative current collector, and the positive current collector jointly form a battery forming cavity for accommodating precursor materials for forming a battery, the outer sleeve is detachably sleeved outside the inner sleeve, the outer sleeve is in close contact with the inner sleeve, the negative current collector, and the positive current collector, the outer sleeve makes the battery forming cavity form a sealed space isolated from the outside, the blind plate is arranged on one side of the battery forming cavity along a second direction, the transparent plate is arranged on the side of the blind plate away from the battery forming cavity along the second direction, and the transparent plate and the inner sleeve jointly form an observation window through which the inside of the battery forming cavity can be observed from the outside.

2. The solid-state battery test mold that can be tested in-situ outside a glovebox of claim 1, wherein: The inner sleeve has a first surface arranged away along the first direction, a second surface, and a third surface located on one side of the inner sleeve along the second direction, the inner sleeve has a cavity and an assembly groove in its interior, the cavity is in communication with the first surface and the second surface, the assembly groove is arranged on one side of the cavity along the second direction, and the assembly groove is in communication with the cavity and the first surface respectively, a part of the negative current collector and a part of the positive current collector are arranged in the cavity, and the blind plate, the negative current collector, and the positive current collector jointly form the battery forming cavity with the cavity. And / or, the surface layer of the cavity and the assembly groove is a quartz layer.

3. The solid-state battery test mold that can be tested in situ outside a glove box according to claim 2, wherein: The assembly groove is located outside the inner wall of the cavity and is in communication with the inner wall of the cavity, and the blind plate can be inserted into or removed from the first slot of the first surface of the assembly groove.

4. The solid-state battery test mold capable of in-situ testing outside a glove box according to claim 2 or 3, characterized in that: The assembly groove has a profiling structure with the same shape as the blind plate.

5. The solid-state battery test mold capable of in-situ testing outside a glove box according to claim 2 or 3, characterized by: The transparent plate is arranged integrally with the inner sleeve, or the assembly groove further has a second slot in communication with the third surface, the transparent plate is fixedly combined with the inner sleeve, and the transparent plate covers the second slot.

6. The solid-state battery test mold capable of in-situ testing outside a glove box according to claim 1 or 2, characterized by: The outer sleeve comprises two outer sleeve bodies, and the solid-state battery test mold further comprises a first connecting assembly, the two outer sleeve bodies are arranged on both sides of the inner sleeve along the second direction, and the two outer sleeve bodies are detachably connected through the first connecting assembly and are in close contact with the inner sleeve, the negative current collector, and the positive current collector through the first connecting assembly. And / or, the first connecting assembly is a bolt and nut assembly.

7. The solid-state battery test mold capable of in-situ testing outside a glove box according to claim 1 or 2, wherein The second connecting assembly is further used to provide a fastening force for pressing the negative current collector and the positive current collector in the first direction to the precursor material in the battery forming cavity.

8. The solid-state battery test mold that can be tested in situ outside a glove box of claim 7, wherein: The second connecting assembly comprises a bolt-nut assembly.

9. The solid-state battery test mold capable of in-situ testing outside of a glovebox of claim 7, wherein: The negative current collector comprises a first base portion and a first current collector portion, the first current collector portion is vertically fixed on the first base portion, the area of the radial section of the first base portion is greater than the area of the radial section of the first current collector portion, the positive current collector comprises a second base portion and a second current collector portion, the second current collector portion is vertically fixed on the second base portion, the area of the radial section of the second base portion is greater than the area of the radial section of the second current collector portion, the second connecting assembly is connected with the first base portion and the second base portion respectively, and one end of the first current collector portion and the second current collector portion is arranged in the inner sleeve.

10. The solid-state battery test mold capable of in-situ testing outside a glove box according to claim 1 or 2, wherein, Further comprising: a sealing structure arranged between the inner sleeve and the negative current collector and the positive current collector; and / or, the sealing structure comprises a sealing rubber ring, a hot melt adhesive structure or a magnetic fluid sealing structure.

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