Perovskite battery stability test equipment

Abstract

The utility model discloses a perovskite battery stability test device, which includes a box, an illumination device, a test device and a temperature control device. The box is provided with an inner cavity, and the illumination device, the test device and the temperature control device are all arranged in the inner cavity. The test device is provided with a closed test space and an output terminal. The closed test space accommodates the battery and provides at least a water-free and oxygen-free environment to the battery. The output terminal is connected to the battery and is at least used to output the voltage signal and current signal of the battery. The illumination direction of the illumination device is toward the closed test space and at least provides illumination to the battery. The temperature control device is connected to the test device to at least adjust the temperature of the closed test space. The utility model can simultaneously meet the requirements of illumination, temperature and water-free and oxygen-free environment in the stability test of the intrinsic attenuation of the perovskite battery by integrating the illumination device, the test device and the temperature control device in a box, thereby making the test simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to a perovskite battery stability testing device, belonging to the technical field of battery testing equipment. Background Art

[0002] The stability test of perovskite batteries is the most critical technical bottleneck that determines whether perovskite batteries can be applied in the industry. According to the different factors that induce the attenuation of perovskite batteries, the attenuation process of perovskite batteries can be divided into two processes: external factor induced attenuation and intrinsic intrinsic attenuation. Among them, the attenuation induced by external factors is mainly caused by the corrosion of water and oxygen in the air on the perovskite battery. The device performance attenuation caused by external induced factors can be suppressed by effective packaging. The intrinsic intrinsic attenuation process usually refers to the failure process of the perovskite body, interface, electrode, etc. caused by the migration and aggregation of ions inside the perovskite battery under stress conditions such as continuous illumination, bias, low temperature, and high temperature. The intrinsic intrinsic attenuation process of perovskite batteries is the key to determining the long-term stability performance of perovskite batteries.

[0003] In the test of the intrinsic attenuation of perovskite batteries, in order to avoid interference from external factors, it is necessary to test in an environment without water and oxygen. In the existing test, the battery is placed in a large glove box with nitrogen to detect the high temperature and low temperature performance of the perovskite battery under sunlight. The light source and voltage are provided outside the glove box, and different voltages are applied to the components and the current is measured to evaluate the performance of the components. However, since the battery needs to frequently enter and exit the glove box, the operation time is relatively long, the operation is inconvenient, the glove box occupies a large area, the cost is expensive, and the amount of nitrogen required is large. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a perovskite battery stability testing device.

[0005] In order to achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model includes:

[0006] The utility model provides a perovskite battery stability testing device, comprising a box body, an illumination device, a testing device and a temperature control device, wherein the box body is provided with an inner cavity, the illumination device, the testing device and the temperature control device are all arranged in the inner cavity, the testing device is provided with a closed testing space and an output terminal, the closed testing space accommodates a battery and at least provides a water-free and oxygen-free environment to the battery, the output terminal is connected to the battery and at least used to output a voltage signal and a current signal of the battery, the illumination direction of the illumination device is toward the closed testing space and at least provides illumination to the battery, and the temperature control device is connected to the testing device and is at least used to adjust the temperature of the closed testing space.

[0007] Furthermore, the illumination device includes an LED light group and a light homogenizing plate, the LED light group is arranged relative to the test device so that the illumination direction of the LED light group is toward the closed test space, and the light homogenizing plate is arranged between the LED light group and the test device.

[0008] Furthermore, the LED lamp group is provided with a plurality of LED lamp beads, and the plurality of LED lamp beads are arranged in an array structure.

[0009] Furthermore, the lighting device also includes a mounting plate and a first heat dissipation mechanism, the mounting plate is provided with a first side surface and a second side surface arranged opposite to each other, the first heat dissipation mechanism is provided with a first heat sink, the LED light group is arranged on the first side surface, and the first heat sink is arranged on the second side surface.

[0010] Furthermore, the first heat dissipation mechanism also includes a first heat dissipation fan, and the first heat dissipation fan is arranged opposite to the first heat sink.

[0011] Furthermore, a fixing frame is provided on the inner wall of the box, the light homogenizing plate and the mounting plate are both installed on the fixing frame, a vent is provided on a side wall of the box opposite to the mounting plate, and the first cooling fan is arranged at the vent.

[0012] Furthermore, the side wall of the box body is also provided with a plurality of first heat dissipation holes.

[0013] Furthermore, a first power connector and a second power connector are provided on the side wall of the box body, the first power connector is connected to the LED light group, and the second power connector is connected to the first cooling fan.

[0014] Furthermore, the test device is provided with a test box body, a clamp mechanism and a nitrogen circulation component, the test box body is provided with the closed test space and an air inlet and an air outlet respectively connected to the closed test space, the closed test space is at least used to accommodate the clamp mechanism, the clamp mechanism is at least used to clamp the battery, and the nitrogen circulation component is provided with an air inlet pipeline and an air outlet pipeline, the air inlet pipeline is connected to the air inlet, and the air outlet pipeline is connected to the air outlet.

[0015] Furthermore, the air inlet pipeline and the air outlet pipeline are both provided with solenoid valves.

[0016] Furthermore, the air intake pipeline is connected to a pressure detector.

[0017] Furthermore, the test box body includes a main body and a sealing cover, the main body is provided with the closed test space, the sealing cover is provided with a light-transmitting window, the light-transmitting window is arranged opposite to the illumination device so that the illumination device provides illumination to the battery through the light-transmitting window, and the main body and the sealing cover are detachably connected.

[0018] Furthermore, a sealing ring is provided between the sealing cover and the body.

[0019] Furthermore, the light-transmitting window is provided with quartz glass.

[0020] Furthermore, two opposite sides of the sealing cover are provided with taking openings with a concave structure.

[0021] Furthermore, the clamp mechanism is provided with a clamp carrier plate, the clamp carrier plate is provided with a mounting groove, the mounting groove is at least used to clamp the battery, the output terminal includes a conductive electrode and an output connector connected to each other, the conductive electrode is arranged in the mounting groove, and the conductive electrode can be connected to the battery, and the output connector is arranged on the side wall of the test box body.

[0022] Furthermore, the fixture carrier plate is provided with a plurality of mounting grooves distributed in an array structure.

[0023] Furthermore, the temperature control device includes a semiconductor refrigeration plate and a heat conductive member, the heat conductive member is provided with a first end and a second end opposite to each other, the semiconductor refrigeration plate is thermally connected to the first end, and the second end extends into the closed test space.

[0024] Furthermore, the temperature control range of the semiconductor refrigeration plate is -20-120°C.

[0025] Furthermore, the heat conductive component includes a heat conductive plate and a heat conductive block connected to each other, the end of the heat conductive plate that is in contact with the semiconductor refrigeration plate forms the first end, and the end of the heat conductive block that extends into the closed test space forms the second end.

[0026] Furthermore, the heat conducting blocks are provided in plurality, and the plurality of heat conducting blocks are arranged on the heat conducting plate in an array structure.

[0027] Furthermore, the temperature control device is also provided with a thermocouple temperature measuring element and a temperature controller which are connected to each other, the thermocouple side temperature measuring element is connected to the semiconductor refrigeration plate, the temperature controller is connected to the semiconductor refrigeration plate, and is at least used to adjust the temperature of the semiconductor refrigeration plate.

[0028] Furthermore, the temperature control device also includes a second heat dissipation mechanism, the second heat dissipation mechanism is provided with a second heat sink, the second heat sink is connected to the semiconductor refrigeration fin, and the second heat sink and the heat conductive element are respectively arranged on opposite sides of the semiconductor refrigeration fin.

[0029] Furthermore, the second heat dissipation mechanism is also provided with a second heat dissipation fan, and the second heat dissipation fan is arranged opposite to the second heat sink.

[0030] Furthermore, the box body includes a first box body and a second box body, a first chamber is provided in the first box body, a second chamber is provided in the second box body, the first box body and the second box body are detachably connected so that the first chamber and the second chamber are interconnected and jointly form the inner cavity, the lighting device is arranged in the first chamber, and the testing device and the temperature control device are arranged in the second chamber.

[0031] Furthermore, the second housing is provided with a plurality of second heat dissipation holes communicating with the second chamber.

[0032] Furthermore, the second box body is also provided with a handle.

[0033] Compared with the prior art, the advantages of the utility model include:

[0034] The utility model integrates the illumination device, the testing device and the temperature control device in one box, which can simultaneously meet the requirements of illumination, temperature and water-free oxygen environment in the stability test of the intrinsic attenuation of the perovskite battery, thereby making the test simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 This is a three-dimensional structural diagram of a box body in one embodiment of the utility model from one viewing angle;

[0037] Figure 2 yes Figure 1 A three-dimensional structural diagram of the box body in another perspective in the illustrated embodiment;

[0038] Figure 3 It is a structural schematic diagram of the lighting device and the first box body in one embodiment of the utility model;

[0039] Figure 4It is a schematic diagram of the structure explosion of a testing device in one embodiment of the utility model;

[0040] Figure 5 It is a structural schematic diagram of a temperature control device in one embodiment of the utility model;

[0041] Figure 6 This is a schematic diagram of the installation of a testing device and a temperature control device in one embodiment of the utility model;

[0042] Figure 7 It is a schematic diagram of the installation of the second box body, the temperature control device and the testing device in one embodiment of the utility model.

[0043] Description of reference numerals:

[0044] 100, box body; 120, fixing frame; 130, ventilation hole; 140, first heat dissipation hole; 151, first power connector; 152, second power connector; 160, first box body; 161, first chamber; 170, second box body; 171, second chamber; 172, second heat dissipation hole; 173, handle; 200, lighting device; 210, LED light group; 220, light homogenizing plate; 230, mounting plate; 241, first heat sink; 242, first cooling fan; 300, test device; 310, closed test space; 321, conductive electrode; 322, output connector; 330, test box body; 331 , body; 332, sealing cover; 3321, light-transmitting window; 3322, quartz glass; 3323, taking port; 333, sealing ring; 334, air inlet; 335, air outlet; 340, nitrogen circulation component; 341, air inlet pipeline; 342, air outlet pipeline; 343, pressure detector; 344, solenoid valve; 351, fixture carrier; 352, mounting groove; 400, temperature control device; 410, semiconductor cooling sheet; 420, heat conducting plate; 430, heat conducting block; 440, thermocouple temperature measuring element; 450, temperature controller; 460, second heat sink; 470, second cooling fan; 500, perovskite battery. DETAILED DESCRIPTION

[0045] In view of the deficiencies in the prior art, the inventor of this case has proposed the technical solution of the utility model after long-term research and extensive practice. The technical solution, its implementation process and principle will be further explained as follows.

[0046] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0047] In addition, in the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", "horizontal", "vertical", 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, 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 therefore cannot be understood as a limitation on the present invention.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "an embodiment", "the embodiment", etc. 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.

[0049] The technical solution, its implementation process and principle will be further explained below in conjunction with the accompanying drawings.

[0050] Example

[0051] See also Figure 1-Figure 7 A perovskite battery stability testing device includes a box body 100, an illumination device 200, a testing device 300 and a temperature control device 400. The box body 100 is provided with an inner cavity, and the illumination device 200, the testing device 300 and the temperature control device 400 are all arranged in the inner cavity. The testing device 300 is provided with a closed testing space 310 and an output terminal. The closed testing space 310 accommodates a battery and provides at least a water-free and oxygen-free environment to the battery. The output terminal is connected to the battery and is at least used to output a voltage signal and a current signal of the battery. The illumination direction of the illumination device 200 is toward the closed testing space 310, and at least provides illumination to the battery. The temperature control device 400 is connected to the testing device 300 to at least adjust the temperature of the closed testing space 310.

[0052] The test equipment can test the intrinsic attenuation of the perovskite battery 500 to detect the stability of the perovskite battery 500. The intrinsic attenuation process generally refers to the process of failure of the perovskite body, interface, electrode, etc. caused by the migration and aggregation of ions inside the perovskite battery 500 under stress conditions such as continuous illumination, bias, high temperature, and low temperature. When testing the intrinsic attenuation of the perovskite battery 500, it is necessary to avoid the erosion of the perovskite battery 500 by water and oxygen in external factors. Therefore, when testing the perovskite, it is necessary to ensure that it is carried out in an environment without water and oxygen.

[0053] In this embodiment, if Figure 1 , 2As shown, the box body 100 can be a cabinet structure, which is arranged in the vertical direction, and its inner cavity is also a corresponding rectangular parallelepiped structure. The illumination device 200, the test device 300 and the temperature control device 400 are installed and connected in the inner cavity of the box body 100 in sequence in the vertical direction, wherein the illumination device 200 is arranged on the upper side of the test device 300, and the illumination direction of the illumination device 200 is vertically downward. A closed test space 310 is provided in the test device 300, and the closed test space 310 can accommodate a perovskite battery 500, wherein the upper end of the closed test space 310 is provided with an area for light to pass through, and the temperature control device 400 is installed and connected to the lower side of the test device 300, and the temperature control device 400 can be connected to the test device 300, so as to control the temperature in the closed test space 310. When the stability test of the perovskite battery 500 is performed, the perovskite battery 500 is first placed in the closed test space 310, and the perovskite battery 500 is connected to the output terminal in the test device 300, so that when the perovskite battery 500 is tested, the perovskite battery 500 can record the real-time voltage and current through the output terminal output. During the test, the closed test space 310 provides an environment without water and oxygen to the perovskite battery 500, and then the set light intensity and light time are provided to the perovskite battery 500 through the lighting device 200, and the temperature in the closed test space 310 is regulated by the temperature control device 400, so that the perovskite battery 500 reaches the predetermined temperature during the test, and the temperature in the closed test space 310 can be adjusted by the temperature control device 400, so that the perovskite battery 500 can be tested under different temperature environments. During the test of the perovskite battery 500, the output terminal transmits the voltage and current of the perovskite battery 500. The output terminal can be connected to a detection and recording device, which can record the voltage and current signals of the perovskite battery 500 output by the output terminal and draw them into an IV curve to monitor the status of the perovskite battery 500 in real time.

[0054] In the above structure, by integrating the illumination device 200, the testing device 300 and the temperature control device 400 in a box 100, the requirements of the illumination, temperature and water-free oxygen environment of the perovskite battery 500 in the stability test of the intrinsic attenuation can be met at the same time, thereby making the test simpler and more convenient, and effectively avoiding the problems of frequent entry and exit of gloves for battery cells during traditional glove box testing, long operation time, inconvenient operation, large glove box footprint and high cost.

[0055] In the specific structure of the illumination device 200, the illumination device 200 includes an LED lamp group 210 and a light homogenizing plate 220. The LED lamp group 210 is arranged opposite to the test device 300 so that the illumination direction of the LED lamp group 210 is toward the closed test space 310. The light homogenizing plate 220 is arranged between the LED lamp group 210 and the test device 300. Specifically, the LED lamp group 210 is provided with a plurality of LED lamp beads, and the plurality of LED lamp beads are arranged in an array structure.

[0056] In this embodiment, if Figure 3 As shown, the illumination device 200 includes an LED light group 210 and a light homogenizing plate 220 disposed at the lower side of the LED light group 210. The LED light group 210 can provide illumination to the battery. The light homogenizing plate 220 is disposed between the LED light group 210 and the test device 300, and can further scatter the light of the LED light group 210 more evenly, thereby ensuring the illumination consistency and stability of each part of the perovskite battery 500. The LED light group 210 is used, and the LED has the advantages of high efficiency and energy saving, green environmental protection, long service life, small size, fast response, low voltage drive, etc., which can effectively meet the use. At the same time, the LED light group 210 is composed of a plurality of LED lamp beads, and the plurality of LED lamp beads can be arranged according to a certain array structure as needed. For example, in this embodiment, the plurality of LED lamp beads are arranged in a rectangular array to adapt to the shape of the light-transmitting area of ​​the closed test space 310.

[0057] In addition, the lighting device 200 further includes a mounting plate 230 and a first heat dissipation mechanism. The mounting plate 230 is provided with a first side surface and a second side surface disposed opposite to each other. The first heat dissipation mechanism is provided with a first heat sink 241. The LED lamp group 210 is disposed on the first side surface, and the first heat sink 241 is disposed on the second side surface. The first heat dissipation mechanism further includes a first heat dissipation fan 242, and the first heat dissipation fan 242 is disposed opposite to the first heat sink 241. Among them, the LED lamp group 210 will generate a large amount of heat during long-term irradiation work, and the heat capacity of the LED chip will be very small. If the heat is not dissipated in time and well, a large amount of heat will be accumulated, and the connection temperature of the chip will increase rapidly. If it works at high temperature for a long time, the life span will be shortened rapidly, thereby affecting the lighting stability of the LED lamp group 210, and further affecting the accuracy of the battery test and reducing the test effect. Therefore, a first heat dissipation device and a mounting plate 230 are provided. The mounting plate 230 is a rectangular plate-shaped structure. The mounting plate 230 is placed horizontally. The lower end surface of the mounting plate 230 is the first side surface, and the upper end surface is the second side surface. The mounting plate 230 is selected from a material with good thermal conductivity, for example, aluminum material can be selected. Specifically, when installing the LED lamp group 210, the LED lamp group 210 is installed on the first side surface, and the first heat sink 241 is installed on the second side surface. The first heat sink 241 can increase the contact area with the air, thereby effectively transferring the heat of the LED lamp group 210 to the air, and improving the heat dissipation efficiency of the LED lamp group 210. The first heat sink 241 is a plurality of sheet structures arranged in a rectangular array, and the extension direction of the first heat sink 241 is vertically upward to be away from the LED lamp group 210. In addition, in order to further improve the heat dissipation efficiency, a first heat dissipation fan 242 is arranged above the first heat sink 241, and the air outlet of the first heat dissipation fan 242 faces the heat sink, thereby increasing the air circulation speed of the heat sink, better taking away the heat of the heat sink, and further improving the heat dissipation effect.

[0058] The lighting device 200 is on the mounting structure of the box 100, a fixing frame 120 is provided on the inner wall of the box 100, the light diffuser 220 and the mounting plate 230 are both installed on the fixing frame 120, a vent 130 is provided on a side wall of the box 100 opposite to the mounting plate 230, and a first cooling fan 242 is arranged at the vent 130. The side wall of the box 100 is also provided with a plurality of first cooling holes 140. A first power connector 151 and a second power connector 152 are provided on the side wall of the box 100, the first power connector 151 is connected to the LED light group 210, and the second power connector 152 is connected to the first cooling fan 242.

[0059] In this embodiment, the mounting plate 230 is a rectangular plate-like structure, and a fixing frame 120 is arranged on the inner wall of the box 100. For example, the fixing frame 120 may include four rectangular fixing plates, and the four rectangular fixing plates are divided into two groups, each group having two rectangular fixing plates, and the two groups are respectively arranged on both sides of the length direction of the mounting plate 230, and the four rectangular fixing plates extend in the vertical direction. The rectangular fixing plates on both sides are symmetrically arranged one by one, and the rectangular fixing plates are provided with connecting holes in the vertical direction. The light-dispersing plate 220 is first horizontally installed between the two groups of rectangular fixing plates, and then the mounting plate 230 is fixed between the two groups of rectangular fixing plates, wherein the distance between the LED lamp group 210 and the light-dispersing plate 220 is adjustable. In addition, the box 100 is provided with a vent 130 at the first cooling fan 242, so that heat exchange and ventilation effects with the outside can be achieved, and heat dissipation is improved. A plurality of heat dissipation holes are also provided on the side wall of the box 100 to further improve air circulation and heat dissipation efficiency. Furthermore, a first power connector 151 connected to the LED light group 210 and a second power connector 152 connected to the first cooling fan 242 are provided on the outside of the box 100, thereby facilitating the power supply to the LED light group 210 and the first cooling fan 242 and facilitating plug-in use.

[0060] In the specific structure of the test device 300, the test device 300 is provided with a test box body 330, a fixture mechanism and a nitrogen circulation assembly 340. The test box body 330 is provided with a closed test space 310 and an air inlet 334 and an air outlet 335 respectively connected to the closed test space 310. The closed test space 310 is at least used to accommodate the fixture mechanism, and the fixture mechanism is at least used to clamp the battery. The nitrogen circulation assembly 340 is provided with an air inlet pipeline 341 and an air outlet pipeline 342. The air inlet pipeline 341 is connected to the air inlet 334, and the air outlet pipeline 342 is connected to the air outlet 335. The air inlet pipeline 341 and the air outlet pipeline 342 are both provided with a solenoid valve 344. The air inlet pipeline 341 is connected to a pressure detector 343.

[0061] In this embodiment, if Figure 4As shown, nitrogen can be introduced into the closed test space 310 so that the closed test space 310 can achieve a water-free and oxygen-free environment. The specific test device 300 includes a test box body 330, a fixture mechanism and a nitrogen circulation component 340. During the test, the perovskite battery 500 is installed on the fixture mechanism, and then the fixture mechanism is placed in the closed test space 310 in the test box body 330. The two side walls of the test box body 330 are respectively provided with an air inlet 334 and an air outlet 335. The air inlet 334 and the air outlet 335 are respectively provided with an air inlet 334 and an air outlet 335. The air port 335 is connected to the uniform closed test space 310, the air inlet 341 of the nitrogen circulation component 340 is connected to the air inlet 334, the air outlet 342 is connected to the air outlet 335, nitrogen is introduced from the air inlet 341, and the nitrogen enters the closed test space 310 through the air inlet 334. After the test is completed, the nitrogen is discharged from the closed test space 310 through the air outlet 335 and the air outlet 342, and the air outlet 342 can collect and reuse the nitrogen again, thereby completing the circulation path. Among them, a pressure detector 343 is also connected to the air inlet 341, which can effectively detect the pressure in the closed test space 310, and can also control the pressure in the closed test space 310 by introducing a specified amount of nitrogen into the closed test space 310. The air inlet 341 and the air outlet 342 are also provided with a solenoid valve 344. Before the test, the solenoid valve 344 of the air outlet pipeline 342 is closed, and the solenoid valve 344 of the air inlet pipeline 341 is opened, nitrogen is introduced, and the value of the pressure detector 343 is observed. When the pressure in the closed test space 310 reaches 0.2-0.3Mpa, the solenoid valve 344 of the air inlet pipeline 341 is closed, and the solenoid valve 344 of the air outlet pipeline 342 is opened to discharge the gas from the closed test space 310. Then, the solenoid valve 344 of the air outlet pipeline 342 is closed, and the solenoid valve 344 of the air inlet pipeline 341 is opened to fill with nitrogen again until the pressure of the closed test space 310 reaches 0.2-0.3Mpa. Then, the solenoid valve 344 of the air inlet pipeline 341 is closed, and the solenoid valve 344 of the air outlet pipeline 342 is opened to exhaust. This cycle is repeated at least three times, so that the air in the closed test space 310 is completely discharged, and then filled with nitrogen to ensure a water-free and oxygen-free environment.

[0062] In the structure of the test box body 330, the test box body 330 includes a body 331 and a sealing cover 332. The body 331 is provided with a closed test space 310. The sealing cover 332 is provided with a light-transmitting window 3321. The light-transmitting window 3321 is arranged opposite to the illumination device 200 so that the illumination device 200 provides illumination to the battery through the light-transmitting window 3321. The body 331 and the sealing cover 332 are detachably connected. A sealing ring 333 is provided between the sealing cover 332 and the body 331. The light-transmitting window 3321 is provided with quartz glass 3322. The opposite sides of the sealing cover 332 are provided with a taking port 3323 with a concave structure.

[0063] In this embodiment, the test box body 330 is a split structure, including a body 331 and a sealing cover 332, which is convenient for installing and taking out the battery. The body 331 is a hollow structure, and an opening is provided at the upper end of the body 331. When in use, the clamp mechanism for clamping the battery is placed inside the body 331 through the opening, and then the sealing cover 332 is sealed and connected to the body 331, thereby forming a closed test space 310, wherein the sealing cover 332 and / or the body 331 are provided with a sealing ring 333 around the opening to further improve the sealing effect. In addition, a rectangular light-transmitting window 3321 is provided at the upper end of the sealing cover 332. After the cover is placed on the body 331, the illumination device 200 can provide light to the battery through the light-transmitting window 3321, and the light-transmitting window 3321 is provided with quartz glass 3322 to improve the light-transmitting effect. The sealing cover 332 is provided with taking openings 3323 recessed inwardly in the horizontal direction at both side ends along the length direction thereof, so that the user can take the sealing cover 332 through the taking openings 3323 to improve the convenience of installation.

[0064] Specifically, the clamp mechanism is provided with a clamp carrier plate 351, and a mounting groove 352 is provided on the clamp carrier plate 351. The mounting groove 352 is at least used to clamp the battery. The output terminal includes a conductive electrode 321 and an output connector 322 connected to each other. The conductive electrode 321 is arranged in the mounting groove 352, and the conductive electrode 321 can be connected to the battery. The output connector 322 is arranged on the side wall of the test box body 330. The clamp carrier plate 351 is provided with a plurality of mounting grooves 352 distributed in an array structure.

[0065] In this embodiment, the fixture carrier 351 is a rectangular plate-like structure, and a mounting groove 352 extending in the vertical direction is provided on the fixture carrier 351. The perovskite battery 500 is clamped in the mounting groove 352, wherein the mounting groove 352 can be a countersunk through-groove structure, which is divided into an upper groove portion and a lower groove portion that are connected. The diameter of the upper groove portion is larger than the diameter of the lower groove portion, and the width of the battery is smaller than the diameter of the upper groove portion and larger than the diameter of the lower groove portion, so that it is clamped in the upper groove portion, and then the conductive electrode 321 is extended from the lower groove portion into the upper groove portion and connected to the battery, and the output connector 322 is arranged on the side wall of the test box body 330, and an opening is also provided at the corresponding position of the box body 100 to expose the output connector 322 for convenient external equipment. Furthermore, a plurality of mounting slots 352 are provided on the fixture carrier plate 351. The plurality of mounting slots 352 can be arranged in a rectangular array or in other ways as required. Correspondingly, the same number of conductive electrodes 321 are provided and connected one-to-one with the corresponding batteries, thereby meeting the need for testing multiple perovskite batteries 500 at the same time.

[0066] In the specific structure of the temperature control device 400, the temperature control device 400 includes a semiconductor cooling sheet 410 and a heat conducting member, the heat conducting member is provided with a first end and a second end opposite to each other, the semiconductor cooling sheet 410 is heat-conductively connected to the first end, and the second end extends into the closed test space 310. Specifically, the heat conducting member includes a heat conducting plate 420 and a heat conducting block 430 connected to each other, the end of the heat conducting plate 420 and the semiconductor cooling sheet 410 being fitted and connected to form the first end, and the end of the heat conducting block 430 extending into the closed test space 310 forms the second end. There are a plurality of heat conducting blocks 430, and the plurality of heat conducting blocks 430 are arranged on the heat conducting plate 420 in an array structure. The temperature control device 400 is also provided with a thermocouple temperature measuring member 440 and a temperature controller 450 connected to each other, the thermocouple side temperature measuring member is connected to the semiconductor cooling sheet 410, and the temperature controller 450 is connected to the semiconductor cooling sheet 410, and is at least used to adjust the temperature of the semiconductor cooling sheet 410. The temperature control range of the semiconductor cooling plate 410 is -20-120°C.

[0067] In this embodiment, if Figure 5 , 6 As shown, the semiconductor refrigeration sheet 410 is a rectangular sheet structure, the semiconductor refrigeration sheet 410 can adjust the temperature, one end of the semiconductor refrigeration sheet 410 is thermally connected to the heat conductive plate 420 of the heat conductive member, wherein the heat conductive plate 420 is also a rectangular sheet structure, and the size of the heat conductive plate 420 is consistent with the size of the semiconductor refrigeration sheet 410, so that the temperature of the semiconductor refrigeration sheet 410 can be better transferred, and the heat conductive block 430 is a rectangular block structure, one end of which is connected to the heat conductive plate 420, and the other end extends into the closed test space 310. Specifically, one end of the heat conductive block 430 extends into the mounting groove 352 and contacts the battery, so as to more accurately adjust the test ring rib temperature of the battery, and the conductive electrode 321 is installed on the side wall of the heat conductive block 430. When temperature adjustment is performed, the semiconductor cooling sheet 410 is controlled to generate a certain temperature, and is transferred to the battery through the heat conducting plate 420 and the heat conducting block 430, so as to adjust the temperature of the test environment. The heat conducting block 430 and the heat conducting plate 420 can be made of aluminum to obtain a better heat conducting effect. In addition, the heat conducting block 430 can also be set to a plurality of corresponding settings, and the plurality of heat conducting blocks 430 are also arranged according to the arrangement of the plurality of batteries. The plurality of heat conducting blocks 430 are inserted into the corresponding mounting grooves 352 one by one to achieve accurate temperature control of the battery test environment. More specifically, the semiconductor cooling sheet 410 is connected to the thermostat 450 to control the temperature of the semiconductor cooling sheet 410, wherein the electric thermocouple temperature measuring element is connected to the semiconductor cooling sheet 410 to detect the real-time temperature of the semiconductor cooling sheet 410 and feed it back to the thermostat 450, so as to facilitate the monitoring and control of the temperature of the test environment.

[0068] Specifically, the temperature control device 400 further includes a second heat dissipation mechanism, which is provided with a second heat sink 460, which is connected to the semiconductor cooling fin 410, and the second heat sink 460 and the heat conducting member are respectively arranged on opposite sides of the semiconductor cooling fin 410. The second heat dissipation mechanism is further provided with a second heat dissipation fan 470, which is arranged opposite to the second heat sink 460.

[0069] In this embodiment, in order to better dissipate the heat of the semiconductor refrigeration plate 410, a second heat sink 460 is provided on the other side of the semiconductor refrigeration plate 410, wherein the second heat sink 460 is a plurality of sheet structures arranged in a rectangular array, and the second heat sink 460 extends vertically downward to be away from the semiconductor refrigeration plate 410, so as to better achieve heat dissipation. A second heat dissipation fan 470 is provided below the second heat sink 460, and the air outlet of the second heat dissipation fan 470 is arranged opposite to the second heat sink 460, so as to better take away the heat of the second heat sink 460 and improve the heat dissipation effect.

[0070] In the specific structure of the box 100, the box 100 includes a first box body 160 and a second box body 170, a first chamber 161 is provided in the first box body 160, a second chamber 171 is provided in the second box body 170, the first box body 160 and the second box body 170 are detachably connected so that the first chamber 161 and the second chamber 171 are connected to each other and form an inner cavity together, the illumination device 200 is arranged in the first chamber 161, and the test device 300 and the temperature control device 400 are arranged in the second chamber 171. The second box body 170 is also provided with a plurality of second heat dissipation holes 172 connected with the second chamber 171. The second box body 170 is also provided with a handle 173.

[0071] In this embodiment, if Figure 1 , 2As shown in FIGS. 3 and 7, the box body 100 can be divided into a first box body 160 and a second box body 170, and the first box body 160 and the second box body 170 are detachably connected, wherein the illumination device 200 is connected and installed in the first chamber 161 of the first box body 160, and the temperature control device 400 and the test device 300 are installed in the second chamber 171 of the second box body 170. The box body 100 is set as a split structure. When not in use, the first box body 160 and the second box body 170 are separated for convenient transportation and storage. In addition, the illumination device 200 is installed separately in the first box body 160, thereby forming an independent illumination system, which can be used in the test process and can also be used for other purposes as needed. In addition, the opening of the first chamber 161 of the first box body 160 is set downward, and the opening of the second chamber 171 of the second box body 170 is set upward. When connected, the first box body 160 is placed at the upper end of the second box body 170, and the two openings correspond to each other, thereby forming an inner cavity together. In addition, a plurality of second heat dissipation holes 172 are also provided on the side wall of the second box body 170, and the plurality of second heat dissipation holes 172 are connected to the second chamber 171, so as to facilitate heat dissipation of the temperature control device 400. In addition, handles 173 are provided on opposite sides of the second box body 170 for easy carrying.

[0072] Furthermore, a plurality of installation areas are provided on the second box body 170 for installing structures such as the temperature controller 450, the pressure detector 343, the power switch, and the solenoid valve 344, so as to facilitate operation.

[0073] In terms of the structures of the first box body 160 and the second box body 170 , the first box body 160 and the second box body 170 are both formed by enclosing a plurality of sheet structures, which facilitates installation, disassembly and storage.

[0074] In this embodiment, the connection structures are all common connection methods, such as threaded bolt connection and the like.

[0075] It should be understood that the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the utility model.

Claims

1. A perovskite battery stability testing device, characterized in that: include: A box body, an illumination device, a test device and a temperature control device, wherein the box body is provided with an inner cavity, wherein the illumination device, the test device and the temperature control device are all arranged in the inner cavity, wherein the test device is provided with a closed test space and an output terminal, wherein the closed test space accommodates a battery and at least provides a water-free and oxygen-free environment to the battery, wherein the output terminal is connected to the battery and at least used to output a voltage signal and a current signal of the battery, wherein the illumination direction of the illumination device is toward the closed test space and at least provides illumination to the battery, and wherein the temperature control device is connected to the test device and is at least used to adjust the temperature of the closed test space.

2. The perovskite battery stability testing device according to claim 1, characterized in that: The illumination device comprises an LED light group and a light homogenizing plate, wherein the LED light group is arranged opposite to the test device so that the illumination direction of the LED light group is toward the closed test space, and the light homogenizing plate is arranged between the LED light group and the test device; And / or, the LED lamp group is provided with a plurality of LED lamp beads, and the plurality of LED lamp beads are arranged in an array structure.

3. The perovskite battery stability testing device according to claim 2, characterized in that: The lighting device further comprises a mounting plate and a first heat dissipation mechanism, wherein the mounting plate is provided with a first side surface and a second side surface which are arranged opposite to each other, the first heat dissipation mechanism is provided with a first heat sink, the LED light group is arranged on the first side surface, and the first heat sink is arranged on the second side surface; And / or, the first heat dissipation mechanism further includes a first heat dissipation fan, and the first heat dissipation fan is arranged opposite to the first heat sink.

4. The perovskite battery stability testing device according to claim 3, characterized in that: A fixing frame is provided on the inner wall of the box body, the light diffuser and the mounting plate are both mounted on the fixing frame, a vent is provided on a side wall of the box body opposite to the mounting plate, and the first cooling fan is arranged at the vent; And / or, the side wall of the box body is further provided with a plurality of first heat dissipation holes; And / or, a first power connector and a second power connector are provided on the side wall of the box, the first power connector is connected to the LED light group, and the second power connector is connected to the first cooling fan.

5. The perovskite battery stability testing device according to claim 1, characterized in that: The test device is provided with a test box body, a fixture mechanism and a nitrogen circulation assembly, the test box body is provided with the closed test space and an air inlet and an air outlet respectively connected to the closed test space, the closed test space is at least used to accommodate the fixture mechanism, the fixture mechanism is at least used to clamp the battery, the nitrogen circulation assembly is provided with an air inlet pipeline and an air outlet pipeline, the air inlet pipeline is connected to the air inlet, and the air outlet pipeline is connected to the air outlet; And / or, both the air inlet pipeline and the air outlet pipeline are provided with solenoid valves; And / or, the air intake pipeline is connected to a pressure detector.

6. The perovskite battery stability testing device according to claim 5, characterized in that: The test box body comprises a body and a sealing cover, wherein the body is provided with the closed test space, and the sealing cover is provided with a light-transmitting window, wherein the light-transmitting window is arranged opposite to the illumination device so that the illumination device provides illumination to the battery through the light-transmitting window, and the body and the sealing cover are detachably connected; And / or, a sealing ring is provided between the sealing cover and the body; And / or, the light-transmitting window is provided with quartz glass; And / or, two opposite sides of the sealing cover are provided with taking openings with a concave structure.

7. The perovskite battery stability testing device according to claim 5, characterized in that: The clamp mechanism is provided with a clamp carrier plate, the clamp carrier plate is provided with a mounting groove, the mounting groove is at least used to clamp the battery, the output terminal includes a conductive electrode and an output connector connected to each other, the conductive electrode is arranged in the mounting groove, and the conductive electrode can be connected to the battery, and the output connector is arranged on the side wall of the test box body; And / or, the fixture carrier plate is provided with a plurality of mounting grooves distributed in an array structure.

8. The perovskite battery stability testing device according to claim 1, characterized in that: The temperature control device comprises a semiconductor refrigeration sheet and a heat-conducting member, wherein the heat-conducting member is provided with a first end and a second end opposite to each other, the semiconductor refrigeration sheet is heat-conductingly connected to the first end, and the second end extends into the closed test space; And / or, the temperature control range of the semiconductor refrigeration sheet is -20-120°C; And / or, the heat conducting member comprises a heat conducting plate and a heat conducting block connected to each other, one end of the heat conducting plate that is in contact with the semiconductor cooling sheet forms the first end, and one end of the heat conducting block that extends into the closed test space forms the second end; And / or, the heat conducting block is provided in plurality, and the plurality of heat conducting blocks are arranged on the heat conducting plate in an array structure; And / or, the temperature control device is further provided with a thermocouple temperature measuring element and a temperature controller which are connected to each other, the thermocouple temperature measuring element is connected to the semiconductor refrigeration plate, the temperature controller is connected to the semiconductor refrigeration plate, and is at least used to adjust the temperature of the semiconductor refrigeration plate.

9. The perovskite battery stability testing device according to claim 8, characterized in that: The temperature control device further comprises a second heat dissipation mechanism, wherein the second heat dissipation mechanism is provided with a second heat sink, the second heat sink is connected to the semiconductor refrigeration fin, and the second heat sink and the heat conducting member are respectively arranged on opposite sides of the semiconductor refrigeration fin; And / or, the second heat dissipation mechanism is further provided with a second heat dissipation fan, and the second heat dissipation fan is arranged opposite to the second heat sink.

10. The perovskite battery stability testing device according to claim 1, characterized in that: The box body comprises a first box body and a second box body, a first chamber is provided in the first box body, a second chamber is provided in the second box body, the first box body and the second box body are detachably connected so that the first chamber and the second chamber are interconnected and jointly form the inner chamber, the illumination device is arranged in the first chamber, and the testing device and the temperature control device are arranged in the second chamber; And / or, the second housing is further provided with a plurality of second heat dissipation holes communicating with the second chamber; And / or, the second box body is further provided with a handle.

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