Perovskite cell enhancement system

Abstract

The utility model relates to a perovskite battery enhancement system. The perovskite battery enhancement system comprises a battery main body, a direct current power supply and a probe, p3 laser scribing is carried out on the perovskite cell main body for many times, so that the secondary insulativity of the cell can be improved, meanwhile, in order to eliminate the defects of a cell film layer, voltage is applied to the cell main body through common control of a direct-current power supply, a probe and a driving part, and defect repair is carried out through a certain current mode; the current passes through the conductive bypass channel, and the tiny bypass channel can be burnt out by instant heating, so that the effect of eliminating defects is achieved.

Description

Technical Field

[0001] The present application relates to the field of perovskite cells, and in particular to a perovskite cell enhancement structure. Background Art

[0002] Perovskite materials are widely used in the perovskite industrialization process due to their excellent performance. Since the perovskite film layer is mainly a coating process, in the film forming process without a vacuum coating environment, it is more prone to the problem of pinholes on the film surface. At the same time, the core power generation layer of the perovskite is an organic material, while the back electrode of the battery is mainly composed of inorganic materials such as metals or oxides. The different material properties result in poor adhesion of the back electrode film layer, which can easily cause a large number of conductive particles to be present in the grooves after P3 laser scribing. The water-oxygen instability of the perovskite material makes it impossible to effectively remove the perovskite through ultrasonic cleaning. However, perovskite products are more prone to serious internal micro-short circuit problems, which affects the performance of the battery and reduces its conversion efficiency. Utility Model Content

[0003] In view of this, the present application proposes a perovskite cell enhancement system that can enhance the performance of perovskite cells.

[0004] According to one aspect of the present application, a perovskite battery enhancement system is provided, comprising: a battery body, a DC power supply and a probe; the battery body is provided with a P1 line, a P2 line and a P3 line, the P1 line, the P2 line and the P3 line are arranged in sequence and parallel to each other; there are multiple P3 lines, and the multiple P3 lines are arranged parallel to each other; the P1 line and the P2 line are both arranged on the same side of the P3 line; the DC power supply is electrically connected to the probe, and the positive and negative poles of the probe are respectively arranged on both sides of the P1 line and the P3 line.

[0005] In one possible implementation, the number of the P3 lines is two.

[0006] In a possible implementation, the P1 scribe line, the P2 scribe line, and the two P3 scribe lines form a scribe line group, and multiple scribe line groups are arranged side by side in a direction perpendicular to the P3 scribe lines.

[0007] In a possible implementation, the distance between two adjacent P3 lines is less than or equal to the distance between the P2 line and the P3 line.

[0008] In a possible implementation, there are multiple probes, and the multiple probes are connected in series and arranged along the line direction of the P3 line.

[0009] In a possible implementation, a bracket is further included, and the DC power supply, the probe and the driving unit are fixedly connected to the bracket; the bracket is a hollow columnar bracket, and the bracket is arranged along the marking direction of the P3 marking line.

[0010] In one possible implementation, the probe is disposed at the bottom of the bracket, the top of the probe is inserted into the hollow structure at the bottom of the bracket, and is connected to the DC power supply via a wire, which is disposed in the hollow structure of the bracket.

[0011] In a possible implementation, the driving device is fixedly connected to the bracket and further includes a driving portion, which can drive the bracket to move up and down.

[0012] The beneficial effects of the present application are as follows: performing multiple P3 laser scribing on the main body of the perovskite battery can increase the secondary insulation of the battery. At the same time, in order to eliminate the defects of the battery film layer, the DC power supply, probe and drive unit are jointly controlled to apply voltage to the main body of the battery and repair the defects by means of a certain current. After reverse bias pressure is applied, the current passes through the conductive bypass channel, and the instantaneous heat can burn out the tiny bypass channel, thereby eliminating the defects.

[0013] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.

[0015] Figure 1 A schematic diagram of the top view of the perovskite cell enhancement system according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0016] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0017] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application or 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 should not be understood as a limitation on the present application.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0019] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0020] In addition, numerous specific details are provided in the detailed description below to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0021] As shown in the figure, the perovskite battery enhancement system includes: a battery body 100, a DC power supply 300 and a probe 200.

[0022] like Figure 1 The up and down directions shown are the dashing directions.

[0023] The battery body 100 is provided with a P1 line, a P2 line and a P3 line, which are arranged in sequence and parallel to each other; there are multiple P3 lines, and the multiple P3 lines are arranged parallel to each other; the P1 line and the P2 line are both arranged on the same side of the P3 line; the DC power supply 300 is electrically connected to the probe 200, and the positive and negative poles of the probe 200 are respectively arranged on both sides of the P1 line and the P3 line.

[0024] P3 laser scribing can use nanosecond or picosecond laser equipment with a light source of 532nm.

[0025] In one possible implementation, the number of P3 lines is two.

[0026] In a possible implementation, a P1 scribe line, a P2 scribe line, and two P3 scribe lines form a scribe line group, and multiple scribe line groups are arranged side by side in a direction perpendicular to the P3 scribe lines.

[0027] In a possible implementation, the distance between two adjacent P3 lines is less than or equal to the distance between the P2 line and the P3 line.

[0028] The optimal width of the P3 scribe line is 10 μm-100 μm, and the spacing between two adjacent P3 scribe lines is 0 mm-5 mm.

[0029] In a possible implementation, there are multiple probes 200 , and the multiple probes 200 are connected in series and arranged along the scribing direction of the P3 scribing line.

[0030] In a possible implementation, a bracket 400 is further included, and the DC power supply 300, the probe 200 and the driving unit are fixedly connected to the bracket 400; the bracket 400 is a hollow columnar bracket 400, and the bracket 400 is arranged along the marking direction of the P3 marking line.

[0031] In one possible implementation, the probe 200 is disposed at the bottom of the bracket 400 , the top of the probe 200 is inserted into the hollow structure at the bottom of the bracket 400 , and is connected to the DC power supply 300 via a wire 500 , which is disposed in the hollow structure of the bracket 400 .

[0032] In one possible implementation, the driving device is fixedly connected to the bracket 400 and further includes a driving portion capable of driving the bracket 400 to move up and down.

[0033] Example 1: After all processes of the perovskite solar cell are completed, it is re-scribed using the P3 scribing process, and another P3 scribing line is added to improve the insulation performance between cells.

[0034] Example 2: Before the IV test, a certain reverse voltage is provided to each battery cell through a voltage-stabilized power supply to achieve a micro-short circuit in the fuse device, thereby increasing Rsh and Voc.

[0035] To effectively address micro-short circuits within batteries, this application cleverly applies an external reverse voltage between each sub-battery. This operation, based on electrical principles, introduces a reverse voltage that accurately and effectively fuses subtle, potential short-circuit paths without compromising the normal circuit structure. This process not only quickly and efficiently isolates the short-circuit area but also significantly improves the overall stability and safety of the battery pack, thereby significantly improving and optimizing internal micro-short circuits.

[0036] To further enhance the battery's insulation performance and ensure superior safety and reliability in a variety of operating environments, we employ advanced secondary laser scribing technology. This technology utilizes a high-precision laser beam to perform a detailed secondary process on the battery surface. By precisely controlling the laser's power, speed, and path, a tiny yet robust insulation barrier is formed in key battery locations. This enhanced secondary insulation not only effectively prevents abnormal current flow but also significantly reduces the risk of insulation failure caused by environmental fluctuations or internal stress, providing a solid foundation for the battery's long life.

[0037] It should be noted that although this application describes a perovskite cell enhancement system as an example, those skilled in the art will appreciate that this application is not limited thereto. In fact, users can flexibly set various parameters based on their personal preferences and / or actual application scenarios, as long as the design is reasonable.

[0038] In this way, multiple P3 laser scribings are performed on the main body of the perovskite battery to increase the secondary insulation of the battery. At the same time, in order to eliminate the defects of the battery membrane layer, the DC power supply, probe and drive unit are jointly controlled to apply voltage to the battery main body and repair the defects by a certain current. After reverse bias pressure is applied, the current passes through the conductive bypass channel, and the instantaneous heat can burn out the tiny bypass channel, thereby eliminating the defects and solving the defect of micro-short circuit of the battery inside the perovskite battery.

[0039] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A perovskite battery enhancement system, characterized in that: include: Battery body, DC power supply and probe; The battery body is provided with a P1 line, a P2 line and a P3 line, wherein the P1 line, the P2 line and the P3 line are arranged in sequence and are arranged parallel to each other; There are multiple P3 lines, and the multiple P3 lines are arranged parallel to each other; The P1 line and the P2 line are both arranged on the same side of the P3 line; The DC power supply is electrically connected to the probe, and the positive electrode and the negative electrode of the probe are respectively arranged on both sides of the P1 line and the P3 line.

2. The perovskite battery enhancement system according to claim 1, characterized in that: The number of the P3 lines is two.

3. The perovskite battery enhancement system according to claim 2, characterized in that: A scribing line group is formed between the P1 scribing line, the P2 scribing line and the two P3 scribing lines. A plurality of scribing line groups are arranged side by side in a direction perpendicular to the P3 scribing lines.

4. The perovskite battery enhancement system according to claim 1, characterized in that: The distance between two adjacent P3 lines is less than or equal to the distance between the P2 line and the P3 line.

5. The perovskite battery enhancement system according to any one of claims 1 to 4, characterized in that: There are multiple probes, and the multiple probes are connected in series and arranged along the line direction of the P3 line.

6. The perovskite battery enhancement system according to any one of claims 1 to 4, characterized in that: It also includes a bracket, and the DC power supply, the probe and the driving part are fixedly connected to the bracket; The bracket is a hollow columnar bracket, and the bracket is arranged along the marking direction of the P3 marking line.

7. The titanium ore battery enhancement system according to claim 6, characterized in that: The probe is arranged at the bottom of the bracket, and the top of the probe is inserted into the hollow structure at the bottom of the bracket and connected to the DC power supply through a wire, and the wire is arranged in the hollow structure of the bracket.

8. The titanium ore battery enhancement system according to claim 7, characterized in that: It also includes a driving part, which is fixedly connected to the bracket and can drive the bracket to move up and down.

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