Thin film battery activation device

Abstract

The utility model discloses a thin-film battery activating device, which comprises a base frame, a protective outer cover, a light source assembly, a heating assembly, a bias voltage generating assembly and a control module, the light source assembly, the heating assembly, the bias voltage generating assembly and the control module are arranged on the base frame, the base frame is provided with an activating platform, the activating platform is used for bearing a thin-film battery, and the protective outer cover covers the activating platform to define an activating inner cavity. The light source assembly can output irradiation light to the activation inner cavity, the heating assembly can heat the activation inner cavity, and the bias voltage generation assembly is used for being electrically connected with a thin film battery. The control module is connected with the light source assembly, the heating assembly and the bias voltage generation assembly so as to control the light source assembly, the heating assembly and the bias voltage generation assembly to operate, the activation efficiency is improved, the activation time is shortened, the thin-film battery is promoted to tend to be stable from a metastable state, and the service life of the thin-film battery is prolonged. And the photoelectric conversion efficiency of the thin-film cell is improved.

Description

Technical Field

[0001] This utility model relates to the field of thin-film battery processing equipment technology, and in particular to a thin-film battery activation device. Background Technology

[0002] In the photovoltaic field, cadmium telluride and other thin-film solar cells have received widespread attention and have achieved industrialization due to their inherent material properties, processing methods, and development progress. After the thin-film cells are prepared, they are generally in a metastable state with low photoelectric conversion efficiency. They must undergo activation and aging before the cell power can stabilize.

[0003] Existing methods for aging thin-film batteries are relatively simple, mostly involving light or current supplementation to create mobile charge carriers within the battery. As these charge carriers flow through the absorption layer, they can fill some defects and achieve a stable maximum power state. However, this process typically takes tens of minutes to several hours before the maximum power stabilizes. For the industrialization of thin-film batteries, this excessive time can negatively impact production capacity. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a thin-film battery activation device that improves activation efficiency, shortens activation time, promotes the thin-film battery from a metastable state to a stable state, and improves the photoelectric conversion efficiency of the thin-film battery.

[0005] A thin-film battery activation device according to a first aspect of the present invention includes: a base frame with an activation platform for supporting a thin-film battery; a protective cover covering the activation platform to form an activation cavity; a light source assembly disposed on the base frame, capable of emitting irradiation light into the activation cavity; a heating assembly disposed on the base frame, capable of heating the activation cavity; a bias voltage generating assembly disposed on the base frame, for electrically connecting to the thin-film battery; and a control module disposed on the base frame, the control module being connected to the light source assembly, the heating assembly, and the bias voltage generating assembly respectively to control the operation of the light source assembly, the heating assembly, and the bias voltage generating assembly.

[0006] A thin-film battery activation device according to an embodiment of the present invention has at least the following beneficial effects:

[0007] This utility model relates to a thin-film battery activation device. When activation is required, the thin-film battery can be placed on an activation platform, and a protective cover is placed on the platform to enclose the activation cavity. The control module controls the operation of the light source component, heating component, and bias voltage generation component. In the activation cavity, the heating component heats the cavity, the bias voltage generation component outputs a positive bias voltage to the thin-film battery, and the light source component outputs irradiated light to the thin-film battery. The combined effect of light, electricity, and heat promotes the diffusion of elements within the thin-film battery, increases the carrier concentration, and improves the mobility. When the carriers flow through the absorption layer, they fill some defects better and faster, thus repairing the defects. This design improves activation efficiency, shortens activation time, and promotes the thin-film battery from a metastable state to a stable state, thereby improving the photoelectric conversion efficiency of the thin-film battery.

[0008] According to some embodiments of the present invention, the light source assembly is located above the activation platform, the protective cover is frame-shaped, and the light-emitting surface of the light source assembly, the protective cover, and the surface of the activation platform enclose the activation cavity.

[0009] According to some embodiments of the present invention, the light source assembly includes an opaque light box and a light-transmitting mask. The light box and the light-transmitting mask are connected to form an internal mounting cavity. The light-transmitting mask forms the light-emitting surface of the light source assembly. At least one light strip is disposed in the mounting cavity, and the light strip is arranged along the length direction of the activation platform.

[0010] According to some embodiments of the present invention, there are multiple light strips, and the multiple light strips are arranged along the width direction of the activation platform.

[0011] According to some embodiments of the present invention, the activation platform includes a support plate disposed on a base frame, the support plate being used to support a thin-film battery, and the heating assembly includes a semiconductor heating element disposed on the support plate, the semiconductor heating element being capable of contacting the thin-film battery.

[0012] According to some embodiments of the present invention, the thin-film battery activation device further includes a temperature detection module, which is used to detect the temperature of the activation cavity, and the control module is connected to the temperature detection module and the semiconductor heating element respectively.

[0013] According to some embodiments of the present invention, the carrier plate is provided with mounting holes penetrating the upper and lower surfaces, the activation platform is provided with an electrode connection end in the mounting holes, the bias generation component is connected to the electrode connection end, and the electrode connection end is used for electrical connection with the thin-film battery.

[0014] According to some embodiments of the present invention, the thin-film battery activation device further includes an electrical detection module, which is connected to the electrode connection terminal and the control module respectively to collect the output power of the thin-film battery.

[0015] According to some embodiments of the present invention, the thin-film battery activation device further includes a cooling component, which is connected to the light source component, the bias voltage generating component and the control module respectively to cool the light source component, the bias voltage generating component and the control module.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a perspective view of one embodiment of the thin-film battery activation device of this utility model;

[0019] Figure 2 This is a schematic diagram of the activated inner cavity in the open state of one embodiment of the thin-film battery activation device of this utility model;

[0020] Figure 3 This is a block diagram illustrating the control principle of one embodiment of the thin-film battery activation device of this utility model.

[0021] Figure label:

[0022] Base frame 100; protective cover 110; support plate 120; mounting hole 130; electrode connection end 140; light source assembly 200; heating assembly 300; bias voltage generation assembly 400; control module 500; temperature detection module 600; electrical detection module 700; cooling assembly 800. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1 to 3 As shown, a thin-film battery activation device according to a first aspect embodiment of the present invention includes a base frame 100, a protective cover 110, and a light source assembly 200, a heating assembly 300, a bias voltage generating assembly 400, and a control module 500 disposed on the base frame 100. The base frame 100 is provided with an activation platform for supporting the thin-film battery. The protective cover 110 covers the activation platform to form an activation cavity. The light source assembly 200 can output irradiation light into the activation cavity. The heating assembly 300 can heat the activation cavity. The bias voltage generating assembly 400 is electrically connected to the thin-film battery. The control module 500 is connected to the light source assembly 200, the heating assembly 300, and the bias voltage generating assembly 400 respectively to control the operation of the light source assembly 200, the heating assembly 300, and the bias voltage generating assembly 400.

[0028] The base frame 100 can be a frame made of metal or alloy brackets. An activation platform can be built on the base frame 100 using sheet metal. The control module 500 can be located on one side of the activation platform for easy operation by staff. The control module 500 can include a control module, an operation module, and a display module. The control module includes a processor such as an MCU or CPU and its associated circuits. The operation module can include components such as a mouse and keyboard. The display module can include a display screen. The control module is connected to the operation module and the display module respectively.

[0029] The protective cover 110 can be made of a light-transmitting material so that the staff can observe the activation status of the activation cavity. Alternatively, the protective cover 110 can be made of a light-shielding material so that only the irradiation light output by the light source component 200 exists in the activation cavity, and external light is unlikely to affect the activation process of the thin-film battery. The bias generation component 400 can be selected from conventional bias power supplies. A bias power supply is a power supply used to provide a constant DC voltage bias for electronic devices or circuits. Specifically, a bias power supply can provide positive bias or negative bias.

[0030] It is understandable that during the activation process of thin-film batteries, when the temperature decreases or in a dark environment, the lattice vibration is weaker, the lattice scattering effect is smaller, the carrier mobility is relatively smaller, the carrier concentration is relatively lower, and defects will reappear.

[0031] This utility model relates to a thin-film battery activation device. When activation is required, the thin-film battery can be placed on an activation platform, and a protective cover 110 is placed on the activation platform to enclose the activation cavity. The control module controls the operation of the light source component 200, the heating component 300, and the bias voltage generating component 400. In the activation cavity, the heating component 300 heats the activation cavity, the bias voltage generating component 400 outputs a positive bias voltage to the thin-film battery, and the light source component 200 outputs irradiated light to illuminate the thin-film battery. The combined effect of light, electricity, and heat promotes the diffusion of elements within the thin-film battery, increases the carrier concentration, and improves the mobility. When the carriers flow through the absorption layer, they fill some defects better and faster, thus repairing the defects. This design improves activation efficiency, shortens activation time, and promotes the thin-film battery from a metastable state to a stable state, thereby improving the photoelectric conversion efficiency of the thin-film battery.

[0032] In some embodiments of this utility model, the control module 500 controls the operation of the light source assembly 200, the heating assembly 300, and the bias generation assembly 400 to achieve the activation process of the thin-film battery, which may be as follows:

[0033] 1. The bias generation component 400 provides a positive bias of 4 Isc / 1.5min for the thin-film battery, the heating component 300 sets the temperature of the activated cavity to 90℃, the light source component 200 outputs light irradiance of 1800W / m^2, and the process time is 1.5min.

[0034] II. The bias generation component 400 provides a positive bias of 5 Isc / 1min for the thin-film battery, the heating component 300 sets the temperature of the activated cavity to 120℃, the light source component 200 outputs light irradiance of 1800W / m^2, and the process time is 1min.

[0035] 3. The bias generation component 400 provides a positive bias of 4 Isc / 1.5min to the thin-film battery, the heating component 300 sets the temperature of the activated cavity to 100℃, the light source component 200 outputs light irradiance of 1400W / m^2, and the process time is 1.5min.

[0036] IV. The bias generation component 400 provides a positive bias of 4 Isc / 1.5min to the thin-film battery, the heating component 300 sets the temperature of the activated cavity to 100℃, the light source component 200 outputs light irradiance of 2000W / m^2, and the process time is 1min.

[0037] In some embodiments of this utility model, such as Figure 1 , 2 As shown, the light source assembly 200 is located above the activation platform, the protective cover 110 is frame-shaped, and the light-emitting surface of the light source assembly 200, the protective cover 110 and the surface of the activation platform enclose the activation cavity.

[0038] The thin-film battery is placed on the surface of the activation platform. The light source assembly 200 can output light above the thin-film battery, so that the light can be evenly irradiated on the surface of the thin-film battery. The light-emitting surface of the light source assembly 200, the protective cover 110 and the surface of the activation platform enclose the activation cavity, so that the light can directly irradiate the thin-film battery without being blocked by the protective cover 110.

[0039] In some embodiments of this utility model, the light source assembly 200 includes an opaque light box and a light-transmitting mask. The light box and the light-transmitting mask are connected to form an internal mounting cavity. The light-transmitting mask forms the light-emitting surface of the light source assembly 200. At least one light strip is disposed in the mounting cavity, and the light strip is arranged along the length direction of the activation platform.

[0040] The light strip can be made of A+ grade xenon lamps or LED lamps, with an adjustable irradiance range of 0-2500W. The light box can be made of opaque resin or alloy materials, and the light-transmitting mask can be made of tempered glass or acrylic materials. The light emitted by the light strip can only be output from the light-emitting surface formed by the light-transmitting mask. The light strip can emit light along its length, thus ensuring that the thin-film battery placed on the activation platform receives light evenly along its length.

[0041] In some embodiments of this utility model, there are multiple light strips arranged along the width direction of the activation platform, and the multiple light strips emit light together, thereby ensuring that the thin-film battery receives light uniformly in the width direction.

[0042] In some embodiments of this utility model, the activation platform includes a support plate 120 disposed on the base frame 100, the support plate 120 being used to support the thin-film battery, and the heating assembly 300 including a semiconductor heating element disposed on the support plate 120, the semiconductor heating element being able to contact the thin-film battery.

[0043] Typically, the upper and lower surfaces of a thin-film battery are the positive electrode surface and the back electrode surface, respectively. When the thin-film battery is placed on the carrier plate 120 for anodizing, the back electrode surface of the thin-film battery contacts the semiconductor heating element, which outputs heat to the thin-film battery. The positive electrode surface of the thin-film battery is provided with a light-transmitting glass plate, and the light-receiving surface of the thin-film battery faces upward. The light output from the light source component 200 can pass through the light-transmitting glass plate and enter the positive electrode surface of the thin-film battery.

[0044] In some embodiments of this utility model, the thin-film battery activation device further includes a temperature detection module 600, which is used to detect the temperature of the activation cavity, and the control module 500 is connected to the temperature detection module 600 and the semiconductor heating element respectively.

[0045] The temperature detection module 600 may include a temperature sensor, thermocouple, etc. The temperature detection module 600 detects the temperature of the activation cavity. The control module 500 controls the operation of the semiconductor heating element according to the target temperature required to activate the thin-film battery and the detected temperature, thereby ensuring that the temperature output by the semiconductor heating element meets the activation temperature requirements of the thin-film battery as much as possible.

[0046] In some embodiments of this utility model, the carrier plate 120 is provided with mounting holes 130 penetrating the upper and lower surfaces, the activation platform is provided with an electrode connection end 140 passing through the mounting hole 130, the bias generation component 400 is connected to the electrode connection end 140, and the electrode connection end is used for electrical connection with the thin film battery.

[0047] The electrode connection terminal 140 can be a pin protruding from the surface of the activation platform, which can be connected to the cathode of the thin-film battery for electrical connection. The bias generation component 400 can apply a constant current output of bias voltage to the thin-film battery through the electrode connection terminal 140.

[0048] In some embodiments of this utility model, the thin-film battery activation device further includes an electrical detection module 700, which is connected to the electrode connection terminal 140 and the control module 500 respectively to collect the output power of the thin-film battery.

[0049] The electrical detection module 700 can be a conventional power meter or a combination of current detection circuit and voltage detection circuit. The electrical detection module 700 can obtain the output power of the thin-film battery during the activation process through the electrode connection terminal 140. The control module can monitor the output power curve and complete the activation after the output power reaches the required level and stabilizes.

[0050] In some embodiments of this utility model, the thin-film battery activation device further includes a cooling component 800, which is connected to the light source component 200, the bias voltage generating component 400 and the control module 500 respectively to cool the light source component 200, the bias voltage generating component 400 and the control module 500.

[0051] The cooling component 800 may include water-cooled cooling equipment, air-cooled cooling equipment, etc. Taking the water-cooled cooling equipment as an example, a hot water exchange tank can be installed at the light source component 200, the bias voltage generating component 400, and the control module 500. The heat generated by the operation of the light source component 200, the bias voltage generating component 400, and the control module 500 can be transferred to the water in the hot water exchange tank. The hot water exchange tank is equipped with an inlet and an outlet. The water carrying heat is output from the outlet, transferred along the water pipe to the cooling component for cooling, and then transferred along the water pipe to the inlet of the hot water exchange tank.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A thin-film battery activation device, characterized in that, include: The base frame is equipped with an activation platform, which is used to support the thin-film battery. A protective outer cover is placed over the activation platform to form the activation cavity; A light source assembly is disposed on the base frame, and the light source assembly is capable of outputting irradiated light into the activation cavity; A heating assembly is disposed on the base frame, and the heating assembly is capable of heating the activated inner cavity; A bias generation component is disposed on the base frame, and the bias generation component is used for electrical connection with the thin-film battery; A control module is disposed on the base frame. The control module is connected to the light source assembly, the heating assembly and the bias voltage generating assembly respectively to control the operation of the light source assembly, the heating assembly and the bias voltage generating assembly respectively.

2. The thin-film battery activation device according to claim 1, characterized in that: The light source assembly is located above the activation platform. The protective cover is frame-shaped, and the light-emitting surface of the light source assembly, the protective cover, and the surface of the activation platform enclose the activation cavity.

3. The thin-film battery activation device according to claim 2, characterized in that: The light source assembly includes an opaque light box and a light-transmitting mask. The light box and the light-transmitting mask are connected to form an internal mounting cavity. The light-transmitting mask forms the light-emitting surface of the light source assembly. At least one light strip is disposed in the mounting cavity, and the light strip is arranged along the length direction of the activation platform.

4. The thin-film battery activation device according to claim 3, characterized in that: There are multiple light strips, which are arranged along the width of the activation platform.

5. The thin-film battery activation device according to claim 1, characterized in that: The activation platform includes a support plate mounted on a base frame, the support plate being used to support the thin-film battery, and the heating assembly includes a semiconductor heating element mounted on the support plate, the semiconductor heating element being able to contact the thin-film battery.

6. The thin-film battery activation device according to claim 5, characterized in that: It also includes a temperature detection module, which is used to detect the temperature of the activated inner cavity, and the control module is connected to the temperature detection module and the semiconductor heating element respectively.

7. The thin-film battery activation device according to claim 5, characterized in that: The carrier plate is provided with mounting holes that penetrate the upper and lower surfaces. The activation platform is provided with an electrode connection end through the mounting holes. The bias generation component is connected to the electrode connection end, and the electrode connection end is used for electrical connection with the thin-film battery.

8. The thin-film battery activation device according to claim 7, characterized in that, It also includes an electrical detection module, which is connected to the electrode connection terminal and the control module respectively to collect the output power of the thin-film battery.

9. A thin-film battery activation device according to claim 1, characterized in that, It also includes a cooling component, which is connected to the light source component, the bias voltage generating component and the control module respectively to cool the light source component, the bias voltage generating component and the control module.

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