Quick-assembly battery mold and battery pressurizing device

Abstract

The utility model discloses a quick-assembly battery mold. The quick-assembly battery mold comprises a mold tube body and two fastening plugs, and the mold pipe body is cylindrical. The fastening plugs are provided with pressurizing ends, and the pressurizing ends of the two fastening plugs are oppositely arranged and are arranged at the two ends of the mold pipe body in an interference penetrating mode respectively. The utility model further discloses a battery pressurizing device which comprises a pressurizing seat, a pressurizing column, a pressurizing module and the quick-assembly battery mold. The pressurizing seat is provided with a pressurizing cavity. The pressurizing module is arranged in the pressurizing cavity. The pressurizing module comprises an insulating sleeve, an upper pressing block and a lower pressing block. And the quick-assembly battery mold is arranged in the insulating sleeve. The upper pressing block and the lower pressing block are respectively embedded at the upper end and the lower end of the inner cavity in a sliding and sealing manner and are propped against the upper end and the lower end of the quick-assembly battery mold. The pressurizing column abuts against the upper pressing block and is in transmission connection with the pressurizing base. According to the battery pressurizing device disclosed by the utility model, pressure is transmitted to the pressurizing module through the pressurizing column, so that the fast-assembled battery mold in the pressurizing module is continuously pressed, and the battery pressurizing device is simple in structure, convenient to operate and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery pressurizing device. Background Art

[0002] Batteries have become an indispensable energy storage product due to their large capacity, safety, and long life. Compared with traditional lithium-ion batteries, solid-state batteries replace electrolytes with solid electrolytes, which are safer than lithium-ion batteries, have higher energy density, and a wider operating voltage range.

[0003] The electrolyte, positive electrode and negative electrode of the solid-state battery are all solid structures. Like conventional batteries, the ion transmission between the positive and negative electrodes of the solid-state battery must pass through the electrolyte. It is very necessary to apply pressure between the positive and negative electrodes to ensure that the battery is tightly combined to explore the battery performance. Therefore, it is necessary to apply different pressures to the solid-state battery to explore the impact on its performance.

[0004] In the prior art, solid-state batteries are generally fixed by a battery pressurization mold, and then pressurized by a pressurization device. However, the existing battery pressurization molds generally need to be customized by non-standard methods, which are large in size and weight and take a long time to process; and the existing pressurization devices often have problems such as complex structures and high assembly difficulty. This leads to high costs and inconvenient operation of the battery pressurization test process. Utility Model Content

[0005] The utility model aims to provide a battery pressurizing device to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0006] The technical solutions adopted to solve the above technical problems are:

[0007] A quick-pack battery mold, comprising: a mold tube body and two fastening plugs, wherein the mold tube body is cylindrical and is made of soft insulating material;

[0008] The fastening plug is made of conductive material and has a pressurizing end. The pressurizing ends of the two fastening plugs are arranged facing each other, and the two fastening plugs are respectively interference-pierced at the two ends of the mold tube body.

[0009] The quick-assembly battery mold provided by the utility model has at least the following beneficial effects: the two fastening plugs are respectively arranged at the two ends of the mold tube body with interference fit, so that a high-pressure space is formed between the two pressurizing ends, thereby applying opposite pressures to the positive and negative electrodes of the solid-state battery. The mold tube body made of insulating material can prevent the solid-state battery from short-circuiting. The two fastening plugs can simulate the positive and negative electrodes of the battery and apply pressure to the solid-state battery through the two pressurizing ends. The mold tube body made of soft material can adapt to the pressurization process by undergoing a certain degree of deformation and has less resistance to pressure.

[0010] As a further improvement of the above technical solution, the mold tube body is a transparent PU tube product.

[0011] As a further improvement of the above technical solution, the fastening plug is a flat head screw, and the fastening plug is screwed to the mold tube body by interference thread.

[0012] The utility model also provides a battery pressurizing device, comprising: a pressurizing seat, a pressurizing column, a pressurizing module and the above-mentioned quick-install battery mold;

[0013] The pressurizing seat has a pressurizing cavity, the pressurizing module is arranged in the pressurizing cavity, the pressurizing module includes: an insulating sleeve, an upper press block and a lower press block, the insulating sleeve has an inner cavity extending up and down, the quick-install battery mold is arranged in the inner cavity, the upper press block has an upper pressurizing part, the lower press block has a lower pressurizing part, the upper pressurizing part and the lower pressurizing part are respectively slidably sealed and embedded in the upper and lower ends of the inner cavity, the upper pressurizing part and the lower pressurizing part are respectively abutted against the upper and lower ends of the quick-install battery mold; the pressurizing column abuts against the upper press block and is transmission-connected to the pressurizing seat.

[0014] The battery pressurizing device provided by the utility model has at least the following beneficial effects: the transmission connection between the pressurizing column and the pressurizing seat can make the pressurizing column move downward relative to the pressurizing seat, thereby pressing the upper pressure block downward. The upper pressurizing part and the lower pressurizing part respectively press against the two fastening plugs of the quick-assembly battery mold, thereby squeezing the battery material between the two pressurizing ends. The insulating sleeve can limit the quick-assembly battery mold and prevent the two fastening plugs from short-circuiting and affecting the solid-state battery. The upper pressurizing part and the lower pressurizing part are sealed and connected to the insulating sleeve, which can isolate the quick-assembly battery mold from the outside world during the pressurization process and reduce the influence of other factors.

[0015] As a further improvement of the above technical solution, the insulating sleeve is made of ceramic, and the upper pressing block and the lower pressing block are both made of metal.

[0016] As a further improvement of the above technical solution, at least one side surface of the pressurizing seat is open.

[0017] As a further improvement of the above technical solution, the pressurizing chamber is provided with a pressurizing pad, and the pressurizing column is threadedly penetrated through the pressurizing pad and abuts against the upper end of the upper pressure block.

[0018] As a further improvement of the above technical solution, the upper end of the pressurizing seat is provided with a position-avoiding hole, and the pressurizing column is movably arranged in the position-avoiding hole.

[0019] As a further improvement of the above technical solution, the upper pressurizing part and the lower pressurizing part are both cylindrical in shape and are provided with sealing rings.

[0020] As a further improvement of the above technical solution, the lower end of the lower pressing block is exposed from the insulating sleeve, and the lower side surface of the pressurizing chamber is provided with a positioning groove corresponding to the lower end of the lower pressing block. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0022] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the battery pressurizing device provided by the utility model;

[0023] Figure 2 This is another three-dimensional schematic diagram of an embodiment of the battery pressurizing device provided by the utility model;

[0024] Figure 3 This is a front cross-sectional view of an embodiment of the battery pressurizing device provided by the utility model;

[0025] Figure 4 The utility model provides a quick-assembly battery mold, and a schematic structural diagram of an embodiment thereof.

[0026] In the figure: 100, quick-release battery mold; 110, mold tube body; 120, fastening plug; 121, pressurizing end; 200, pressurizing seat; 210, pressurizing pad; 220, opening; 230, avoidance hole; 300, pressurizing column; 310, screwing part; 400, pressurizing module; 410, insulating sleeve; 411, inner cavity; 412, sealing ring; 420, upper pressure block; 421, upper pressurizing part; 430, lower pressure block; 431, lower pressurizing part. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood to exclude the number, and above, below, within, etc. are understood to include the number.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] Reference Figures 1 to 4 The battery pressurizing device of the utility model is implemented as follows:

[0032] A battery pressurizing device includes: a pressurizing seat 200, a pressurizing column 300, a pressurizing module 400 and a quick-assembly battery mold 100.

[0033] The quick-assembly battery mold 100 is used to fix battery materials. The quick-assembly battery mold 100 includes: a mold tube body 110 and a fastening plug 120 .

[0034] The mold tube body 110 is made of soft insulating material. The fastening plug 120 is made of conductive material.

[0035] The mold tube body 110 is cylindrical. The fastening plug 120 has a pressurizing end 121. There are two fastening plugs 120, and the pressurizing ends 121 of the two fastening plugs 120 are arranged facing each other. The two fastening plugs 120 are respectively arranged at both ends of the mold tube body 110 and are interference fit with the mold tube body 110.

[0036] In actual use, the two fastening plugs 120 are respectively interference-set at the two ends of the mold tube body 110, so that a high-pressure space is formed between the two pressurizing ends 121, thereby applying opposite pressure to the positive and negative electrodes of the solid-state battery. The mold tube body 110 made of insulating material can prevent the solid-state battery from short-circuiting. The two fastening plugs 120 can simulate the positive and negative electrodes of the battery and apply pressure to the solid-state battery through the two pressurizing ends 121. The mold tube body 110 made of soft material can adapt to the pressurization process by undergoing a certain degree of deformation and has less resistance to pressure.

[0037] The pressurizing module 400 includes: an insulating sleeve 410, an upper pressing block 420 and a lower pressing block 430. The insulating sleeve 410 has an inner cavity 411 extending up and down. The quick-install battery mold 100 is arranged in the inner cavity 411. The upper pressing block 420 and the lower pressing block 430 are respectively arranged on the upper and lower sides of the insulating sleeve 410. The lower end of the upper pressing block 420 has an upper pressurizing portion 421, and the upper end of the lower pressing block 430 has a lower pressurizing portion 431.

[0038] The upper pressurizing part 421 and the lower pressurizing part 431 are respectively slidably and sealingly embedded at the upper and lower ends of the inner cavity 411. The upper pressurizing part 421 and the lower pressurizing part 431 are respectively in contact with the two fastening plugs 120 at the upper and lower ends of the quick-assembly battery mold 100.

[0039] The pressurizing seat 200 has a pressurizing chamber. The pressurizing module 400 is disposed in the pressurizing chamber. The pressurizing column 300 is disposed above the pressurizing module 400. The lower end of the pressurizing column 300 abuts against the upper side of the upper pressing block 420. The pressurizing column 300 is transmission-connected to the pressurizing seat 200.

[0040] In actual use, the pressurizing column 300 is driven to be connected to the pressurizing seat 200, so that the pressurizing column 300 moves downward relative to the pressurizing seat 200, thereby pressing the upper pressure block 420 downward. The upper pressurizing portion 421 and the lower pressurizing portion 431 respectively press against the two fastening plugs 120 of the quick-assembly battery mold 100, thereby squeezing the battery material between the two pressurizing ends 121. The insulating sleeve 410 can limit the quick-assembly battery mold 100, and at the same time can prevent the two fastening plugs 120 from short-circuiting and affecting the solid-state battery. The upper pressurizing portion 421 and the lower pressurizing portion 431 are sealed with the insulating sleeve 410, which can isolate the quick-assembly battery mold 100 from the outside world during the pressurization process and reduce the influence of other factors.

[0041] In this embodiment, the mold tube body 110 is a transparent PU tube product. PU tubes are divided into polyester PU tubes and polyether PU tubes according to the material. They are widely used in the industrial field, easy to obtain and low in cost. PU tubes with different diameters and wall thickness specifications can be purchased according to the size requirements of the solid-state battery. The use of transparent PU tubes can facilitate the observation of the condition of the solid-state battery inside.

[0042] The fastening plug 120 may be a flat head screw, and the pressure end 121 is preferably a flat end surface. The fastening plug 120 is screwed with the mold tube body 110 by interference thread. The fastening plug 120 using a screw is easy to obtain, has low cost, and has a variety of specifications, and can be easily adapted to the size specifications of the mold tube body 110.

[0043] The quick-assembly battery mold 100 is formed by using a mold body 110 made of a transparent PU tube and a fastening plug 120 made of screws. The constituent materials are easy to obtain, the structure is simple and the functions are complete, the assembly is convenient and quick, and it also has the advantages of small size, light weight and low cost.

[0044] In this embodiment, the insulating sleeve 410 is made of ceramic, and the upper pressing block 420 and the lower pressing block 430 are both made of metal. Ceramics have high toughness, high bending strength, high wear resistance and excellent thermal insulation performance, and are not easily worn or damaged during long-term use. Even if worn or damaged, the insulating sleeve 410 made of ceramic can be easily replaced at a low cost.

[0045] The upper pressing block 420 and the lower pressing block 430 are both in the shape of a variable diameter cylinder. The upper pressurizing portion 421 is in the shape of a cylinder and is arranged at the lower end of the upper pressing block 420. The diameter of the upper pressurizing portion 421 is set according to the inner diameter of the insulating sleeve 410. The upper end of the upper pressing block 420 has a truncated cone with a diameter greater than the inner diameter of the insulating sleeve 410. The upper end of the upper pressing block 420 is arranged on the upper side of the insulating sleeve 410. The structure of the lower pressing block 430 is symmetrically arranged with the upper pressing block 420. The upper end of the upper pressing block 420 and the lower end of the lower pressing block 430 are both exposed to the insulating sleeve 410. The lower end of the lower pressing block 430 abuts against the inner wall of the lower end of the pressurizing chamber, and the upper end of the upper pressing block 420 abuts against the lower end of the pressurizing column 300, thereby preventing the insulating sleeve 410 from being compressed.

[0046] The upper pressurizing part 421 and the lower pressurizing part 431 preferably have clearances with the inner wall of the insulating sleeve 410. The upper pressurizing part 421 and the lower pressurizing part 431 are both sleeved with an annular sealing ring 412. The upper pressurizing part 421 and the lower pressurizing part 431 are both provided with an annular sealing groove. The sealing ring 412 is embedded in the sealing groove, and the outer edge of the sealing ring 412 abuts against the inner wall of the insulating sleeve 410.

[0047] To achieve accurate pressurization, in some other embodiments, the upper pressing block 420 or the lower pressing block 430 is provided with a pressure sensor. The pressure sensor is provided between the upper pressing block 420 and the pressurizing column 300 or between the lower pressing block 430 and the lower side of the pressurizing chamber. The pressure sensor can accurately detect the pressure applied to the pressurizing module 400.

[0048] When replacing the solid-state battery or the quick-assembly battery mold 100, it is necessary to take the pressurization module 400 out of the pressurization chamber. To facilitate the placement of the pressurization module 400, at least one side of the pressurization seat 200 is open. In this embodiment, the pressurization seat 200 is in the shape of a rectangular parallelepiped. The pressurization chamber is in the shape of a rectangular parallelepiped or a cylindrical shape. It is best if the wall thickness of the pressurization seat 200 is uniformly set. The rear side of the pressurization seat 200 has an open opening 220, and the opening 220 is connected to the pressurization chamber. The front side of the pressurization seat 200 has a through hole that passes through the front and back. When taking out the pressurization module 400, the pressurization module 400 can be pushed out from the opening 220 backwards through the through hole. When placing the pressurization module 400, the position of the pressurization module 400 can be conveniently adjusted through the through hole.

[0049] In a further embodiment, the lower side of the pressurizing chamber is provided with a downwardly recessed positioning groove corresponding to the lower end of the lower pressing block 430. When placing the pressurizing module 400, the lower pressing block 430 can be embedded in the positioning groove, which facilitates the positioning of the pressurizing module 400 and avoids biased pressing.

[0050] In this embodiment, the pressurizing chamber is provided with a pressurizing pad 210. The pressurizing pad 210 is plate-shaped and movably embedded in the pressurizing chamber. The pressurizing column 300 is threadedly inserted into the pressurizing pad 210 and abuts against the upper end of the upper pressure block 420. When the pressurizing column 300 rotates downward, the pressurizing pad 210 can be clamped at the upper end of the pressurizing chamber, so that the pressurizing column 300 moves downward relative to the pressurizing seat 200, thereby squeezing the pressurizing module 400. In some other embodiments, the pressurizing column 300 can be threadedly inserted into the upper end of the pressurizing seat 200.

[0051] The upper end of the pressure column 300 has a screwing portion 310, and the screwing portion 310 is used to drive the pressure column 300 to rotate relative to the pressure pad 210. In this embodiment, the screwing portion 310 is an internal hexagonal slot. When pressurizing, the pressure column 300 is rotated with a hexagonal wrench, and the pressure column 300 is squeezed downward through thread transmission. In some other embodiments, the screwing portion 310 can be an external hexagonal shape, or a non-rotating shape such as a triangular slot or a rectangular parallelepiped.

[0052] In a further embodiment, the upper end of the pressurizing seat 200 has an avoidance hole 230 that passes through from top to bottom. The pressurizing column 300 is movably arranged in the avoidance hole 230. During the pressurization test, the pressurizing module 400 can be pressurized through the threaded transmission between the pressurizing column 300 and the pressurizing pad 210. When it is necessary to apply a large pressure, the pressurizing column 300 can be screwed upwards, and after the pressurizing column 300 is disconnected from the pressurizing pad 210, the pressurizing pad 210 can be taken out of the pressurizing chamber. The press can directly pressurize the pressurizing module 400 through the avoidance hole 230.

[0053] In addition, the embodiments of the quick-assembly battery mold 100 of the present invention can refer to the various examples of the quick-assembly battery mold 100 involved in the battery pressurizing device listed above, and various examples will not be described here.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] Although the embodiments of the present invention have been shown and described, those skilled in the art may make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and purpose of the present invention. These changes, modifications, equivalent variations or substitutions are all included in the scope defined by the claims of this application. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A quick-install battery mold, characterized in that: include: A mold tube body and two fastening plugs, wherein the mold tube body is cylindrical and is made of soft insulating material; The fastening plug is made of conductive material and has a pressurizing end. The pressurizing ends of the two fastening plugs are arranged facing each other, and the two fastening plugs are respectively interference-pierced at the two ends of the mold tube body.

2. The quick-install battery mold according to claim 1, characterized in that: The mold tube body is a transparent PU tube product.

3. The quick-install battery mold according to claim 2, characterized in that: The fastening plug is a flat head screw, and the fastening plug is screwed with the mold tube body through interference thread.

4. A battery pressurizing device, characterized in that: include: A pressurizing seat, a pressurizing column, a pressurizing module, and a quick-assembly battery mold according to any one of claims 1 to 3; The pressurizing seat has a pressurizing cavity, the pressurizing module is arranged in the pressurizing cavity, the pressurizing module includes: an insulating sleeve, an upper pressing block and a lower pressing block, the insulating sleeve has an inner cavity extending up and down, the quick-install battery mold is arranged in the inner cavity, the upper pressing block has an upper pressurizing part, the lower pressing block has a lower pressurizing part, the upper pressurizing part and the lower pressurizing part are respectively slidably sealed and embedded in the upper and lower ends of the inner cavity, and the upper pressurizing part and the lower pressurizing part are respectively abutted against the upper and lower ends of the quick-install battery mold; The pressure column is in contact with the upper pressure block and is transmission-connected with the pressure seat.

5. The battery pressurizing device according to claim 4, characterized in that: The insulating sleeve is made of ceramic, and the upper pressing block and the lower pressing block are both made of metal.

6. The battery pressurizing device according to claim 4, characterized in that: At least one side surface of the pressurizing seat is open.

7. The battery pressurizing device according to claim 4, characterized in that: The pressurizing chamber is provided with a pressurizing pad, and the pressurizing column is threadedly penetrated through the pressurizing pad and abuts against the upper end of the upper press block.

8. The battery pressurizing device according to claim 7, characterized in that: The upper end of the pressurizing seat is provided with an avoidance hole, and the pressurizing column is movably arranged in the avoidance hole.

9. The battery pressurizing device according to claim 4, characterized in that: The upper pressurizing part and the lower pressurizing part are both cylindrical and provided with sealing rings.

10. The battery pressurizing device according to claim 4, characterized in that: The lower end of the lower pressing block is exposed from the insulating sleeve, and the lower side surface of the pressurizing chamber is provided with a positioning groove corresponding to the lower end of the lower pressing block.

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