CN219737364U - Solid-state battery mould and testing arrangement - Google Patents
Solid-state battery mould and testing arrangement Download PDFInfo
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- CN219737364U CN219737364U CN202320926381.0U CN202320926381U CN219737364U CN 219737364 U CN219737364 U CN 219737364U CN 202320926381 U CN202320926381 U CN 202320926381U CN 219737364 U CN219737364 U CN 219737364U
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- Prior art keywords
- solid
- state battery
- gasket
- insulating
- pole
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- 238000012360 testing method Methods 0.000 title claims abstract description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 15
- 239000010935 stainless steel Substances 0.000 claims abstract description 15
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 230000035515 penetration Effects 0.000 claims description 13
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 abstract description 9
- 239000007784 solid electrolyte Substances 0.000 description 11
- 230000000149 penetrating effect Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
Landscapes
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a solid-state battery mould and a testing device, which comprises a stainless steel outer frame, an insulating gasket, a top pole, a gasket pressing piece, an insulating battery sleeve and a bottom pole; the stainless steel outer frame comprises a tightening fitting, a top pressure-resistant frame and a bottom bracket; the bottom bracket is provided with a laser positioning device, an upright post and bottom grooves, and at least comprises three bottom grooves. The solid-state battery die can prepare a plurality of solid-state battery samples at one time, can measure the thickness of electrolyte without opening the die, finally reduces the operation flow and can improve the working efficiency.
Description
Technical Field
The utility model relates to the technical field of battery testing equipment, in particular to a solid-state battery die and a testing device.
Background
The solid-state battery uses inorganic solid electrolyte to completely replace organic electrolyte, so that the safety performance of the battery can be greatly improved, the solid-state battery can be compatible with positive and negative electrode materials with high specific energy which cannot be used in a liquid battery, and the specific energy of the solid-state battery can reach 2-3 times of that of the conventional lithium ion battery theoretically.
Solid-state battery molds are indispensable equipment in the development and production of solid-state batteries. Through simulating the working principle and the composition structure of the battery, the electrochemical performance of the solid-state battery assembled by different solid-state electrolyte materials is tested and researched under different pressure maintaining conditions, and the ion and electronic conductivity of the solid-state electrolyte and the change condition of the electrochemical performance of the assembled all-solid-state battery in the charge and discharge processes are recorded in real time. At present, the solid-state battery development process can not be operated in a glove box, an existing test die can only be used for placing one sample, an experimenter can screw at least three times, the limited space and the fixed operation position of the test die enable the solid-state battery tabletting process to be time-consuming and labor-consuming, the thickness of a powder sheet after cold pressing is measured and can be finally determined after the die is still required to be disassembled, the manual operation difficulty is improved, the precision is reduced, and the electrochemical performance test efficiency of the battery is seriously reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a solid-state battery die and a testing device, wherein the die can be operated once to perform tabletting on a plurality of solid-state electrolyte samples, so that the operation in a glove box is effectively reduced, the measurement precision of electrolyte powder sheets is obviously improved, and the electrochemical testing efficiency of the solid-state battery is greatly improved by matching with a multi-channel electrochemical workstation.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a solid battery mould comprises a stainless steel outer frame, an insulating gasket, a top pole, a gasket pressing piece, an insulating battery sleeve and a bottom pole; the stainless steel outer frame comprises a tightening fitting, a top pressure-resistant frame and a bottom bracket; the bottom bracket is provided with a laser positioning device, an upright post and bottom grooves, and at least comprises three bottom grooves.
Optionally, the gasket compression member includes a head and a screw, and is further provided with a first penetration hole.
Optionally, the insulating battery cover is cylindrical, and includes a chamfer, a first threaded hole, a first sealing pad and a second penetrating hole.
Optionally, the upper end of the top pole is round, the lower part is a first boss, and the side edge is provided with a second threaded hole; the upper end of bottom utmost point post is the second boss, be provided with the second on the second boss and seal up the pad, the lower extreme of bottom utmost point post is circular, and the side is provided with the third screw hole.
Optionally, the insulating spacer includes a top spacer disposed in the top recess and a bottom spacer disposed in the bottom recess.
Optionally, the top pole further comprises a top conductive post, and the bottom pole further comprises a bottom conductive post.
Optionally, the bottom groove and the upright post are uniformly arranged on the bottom bracket, and the corresponding third penetrating holes are uniformly arranged on the top pressure-resistant frame.
According to another embodiment of the present utility model, there is provided a solid-state battery testing device including any one of the solid-state battery molds described above.
Compared with the prior art, the utility model has the following advantages:
(1) The solid-state battery mould provided by the utility model is used by an experimenter, so that the situation that one mould can only be filled with one sample before is avoided, meanwhile, the frequency of using a hydraulic press is reduced, a plurality of solid-state battery samples can be prepared only by one operation in a glove box, and the operation flow is reduced and the working efficiency can be improved by matching with a multichannel electrochemical workstation.
(2) The solid-state battery die provided by the utility model is provided with the laser positioning device, and after the compaction step, the thickness of the solid-state electrolyte can be calculated through the position change difference of the top pressure-resistant frame, so that the technical problem that the test accuracy is reduced due to cracking of the electrolyte powder sheet when the thickness is tested after the electrolyte is taken out can be effectively avoided.
Drawings
Fig. 1 is a front view of a solid electrolyte mold according to one embodiment of the utility model.
Fig. 2 is a schematic structural view of a solid electrolyte mold according to an embodiment of the present utility model.
Fig. 3 is a schematic structural view of a stainless steel outer frame according to another embodiment of the present utility model.
Reference numerals illustrate:
1: an insulating battery sleeve; 11: a second penetration hole; 12: a first threaded hole; 13: chamfering; 14: a first gasket; 2: a bottom pole; 21: a second boss; 22: a second gasket; 23: a third threaded hole; 3: a gasket pressing member; 31: a first penetration hole; 32: a screw; 4: a top pole; 41: a first boss; 42: a second threaded hole; 5: an insulating spacer; 51: a top gasket; 52: a bottom gasket; 6: a top pressure-resistant frame; 61: a pressure-resistant frame body; 62: a third penetration hole; 7: a bottom bracket; 71: a column; 72: a laser positioning device; 73: a bottom groove; 8: a clamping member; 81: a nut; 82: and a gasket.
Detailed Description
The present utility model will be described in further detail below in order to make the objects, technical solutions and advantages of the present utility model more apparent. It is to be understood that the description is only intended to illustrate the utility model and is not intended to limit the scope of the utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model.
For a further understanding of the present utility model, the present utility model will be described in further detail with reference to the following preferred embodiments.
According to one embodiment of the present utility model, a solid electrolyte mold of the present utility model, as shown in fig. 1, specifically includes a stainless steel outer frame, an insulating spacer 5, a top pole 4, a gasket pressing member 3, an insulating battery case 1, and a bottom pole 2. Wherein, the upper end of the top pole 4 is round, the lower part is a first boss 41, and the side edge is provided with a second threaded hole 42; the upper end of the bottom pole 2 is provided with a second boss 21, a second sealing gasket 22 is arranged on the second boss 21, the lower end of the bottom pole 2 is circular, and the side edge of the bottom pole 2 is provided with a third threaded hole 23.
The insulating battery case 1 has a cylindrical shape and includes a chamfer 13, a first screw hole 12, a first gasket 14, and a second penetration hole 11. The insulating gasket 5 includes top gasket 51 and bottom gasket 52, make stainless steel outer frame and top utmost point post 4 keep apart through top gasket 51, the material that the packing ring pressed part 3 can be the same with insulating gasket 5, insulating battery cover 1, its purpose is to prevent that packing ring pressed part 3 from electrically conducting, and then influence solid electrolyte's test result, at this moment only need top utmost point post 4 electrically conduct can, the same of packing ring pressed part is perhaps different to the material of first sealing gasket 14, only need satisfy insulating can, its purpose is in order to increase the seal of second through hole 11, the material can select rubber, nitrile rubber, fluororubber etc. and satisfy elasticity good, corrosion-resistant, the ductility good can. The top gasket 51 is placed in the top groove and the bottom gasket 52 is placed in the bottom groove 73.
As shown in fig. 2, the top pole 4 further includes a top conductive post, the bottom pole 2 further includes a bottom conductive post, the second threaded hole 42 is configured to be externally connected to a top conductive post (not shown) with corresponding threads for rotationally connecting to the electrochemical workstation wires, and then performing an electrochemical performance test, and similarly, the third threaded hole 23 is configured according to this, and the holes 42 and 23 may be other shapes or may have no threads according to actual needs.
The gasket pressing member 3 includes a head portion and a screw rod 32, and is further provided with a first penetration hole 31, the diameter of the first penetration hole 31 needs to be the same as the diameter of the first boss 41, the outer diameter of the screw rod 32 is at least a little smaller than the diameter of the second penetration hole 11, and the inner diameter of the first gasket 14 to be compressed needs to be slightly smaller than the diameter of the second penetration hole 11 under the urging force of the gasket pressing member. Similarly, in order to allow the compressed solid electrolyte to act on air, it is necessary to have a good sealing property when installed in the glove box, so that the outer diameter of the second gasket 22 after being compressed needs to be slightly larger than the diameter of the second penetration hole 11.
The insulating spacer 5 may be flat, or may be in the shape of a groove. As shown in fig. 3, the stainless steel outer frame includes a clamping fitting 8, a top pressure-resistant frame 6, and a bottom bracket 7, since the bottom bracket 7 has a bottom groove 73, in order to avoid a phenomenon that a bottom wire post drawn out from a third screw hole is in contact with the stainless steel outer frame to cause a short circuit, the thickness of the insulating washer 5 needs to be greater than the depth of the bottom groove 73, and it can be freely placed and taken out in the bottom groove 73. Correspondingly, the top pressure-resistant frame is provided with the same number of grooves (not shown), the bottom bracket 7 at least comprises three bottom grooves 73, for example, 3 grooves 73 are manufactured at a time in the solid electrolyte die in fig. 3, in other embodiments, 4 grooves 73 can be provided, 5 grooves and 6 grooves 73 can be provided, and at the moment, 4 grooves, 5 grooves and 6 grooves can be respectively provided in one operation, so that the working efficiency is improved through fewer operation flows.
As shown in fig. 3, the bottom bracket 7 is provided with a laser positioning device 72, a post 71, and a bottom groove 73. The bottom bracket 7 has at least 3 posts 71, and in order to make the stainless steel outer frame better compact the solid electrolyte, the posts 71 are specially threaded for the nuts 81 to tighten the electrolyte, and sometimes, in order to effectively fix the stainless steel outer frame, a part of the non-threaded lower portion of the posts 71 needs to be cut, which is not explicitly shown in fig. 3. The laser positioning device 72 can intuitively measure the thickness of the formed solid electrolyte without opening a mold by an experimenter, avoids the situation of cracking when measuring the thickness of the solid electrolyte, and the third penetrating hole 62 arranged on the top pressure-resistant frame 6 is not provided with threads, so that the top pressure-resistant frame can freely move up and down under the action of the pressurizing device, and after the electrolyte with the required pressure or the required thickness is applied, the nut 81 is used for fixing the top pressure-resistant frame 6 so as to ensure that electrochemical test is performed under the condition of maintaining the fixed pressure or the thickness. The bottom grooves 73 and the columns 71 are uniformly arranged on the bottom bracket 7, and the corresponding third penetrating holes 62 are uniformly arranged on the top pressure-resistant frame 6.
According to another embodiment of the present utility model, there is provided a solid-state battery testing device including any one of the solid-state battery molds described above. Specifically, when an experimenter operates, firstly, each part in fig. 1 is assembled, then the assembly is put into a stainless steel outer frame in fig. 3, solid electrolyte powder is put into the stainless steel outer frame, finally, tabletting is carried out through a hydraulic press or an oil press, after a certain pressure is reached, a screw is screwed down, and then the connection multichannel electrochemical workstation is taken down.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the utility model.
Claims (8)
1. The solid-state battery mould is characterized by comprising a stainless steel outer frame, an insulating gasket (5), a top pole (4), a gasket pressing piece (3), an insulating battery sleeve (1) and a bottom pole (2); the stainless steel outer frame comprises a clamping fitting (8), a top pressure-resistant frame (6) and a bottom bracket (7); the bottom bracket (7) is provided with a laser positioning device (72), a stand column (71) and bottom grooves (73), and the bottom bracket (7) at least comprises three bottom grooves (73).
2. The solid state battery mold according to claim 1, characterized in that the gasket compression member (3) includes a head portion and a screw (32), and is further provided with a first penetration hole (31).
3. The solid state battery mold according to claim 1, characterized in that the insulating battery cover (1) is cylindrical and comprises a chamfer (13), a first threaded hole (12), a first gasket (14) and a second penetration hole (11).
4. The solid-state battery mold according to claim 1, wherein the top terminal (4) has a circular upper end, a first boss (41) at a lower portion, and a second screw hole (42) at a side; the upper end of bottom utmost point post (2) is second boss (21), be provided with second sealed pad (22) on second boss (21), the lower extreme of bottom utmost point post (2) is circular, and the side is provided with third screw hole (23).
5. A solid state battery mould according to claim 3, characterized in that the insulating spacer (5) comprises a top spacer (51) and a bottom spacer (52), the top spacer (51) being placed in a top recess and the bottom spacer (52) being placed in the bottom recess (73).
6. The solid state battery mold according to claim 1, characterized in that the top pole (4) further comprises a top conductive post, the bottom pole (2) further comprising a bottom conductive post.
7. The solid state battery mold according to claim 1, wherein the bottom groove (73) and the pillar (71) are uniformly provided on the bottom bracket (7), and the top pressure-resistant frame (6) is uniformly provided with the corresponding third penetration holes (62).
8. A solid-state battery testing device comprising the solid-state battery mold according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320926381.0U CN219737364U (en) | 2023-04-23 | 2023-04-23 | Solid-state battery mould and testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320926381.0U CN219737364U (en) | 2023-04-23 | 2023-04-23 | Solid-state battery mould and testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219737364U true CN219737364U (en) | 2023-09-22 |
Family
ID=88051708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320926381.0U Active CN219737364U (en) | 2023-04-23 | 2023-04-23 | Solid-state battery mould and testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219737364U (en) |
-
2023
- 2023-04-23 CN CN202320926381.0U patent/CN219737364U/en active Active
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