Tempered high-temperature transparent glass glaze and its preparation method and application

Abstract

The present application provides a temperable high-temperature transparent glass glaze and its preparation method and application, which belongs to the field of photovoltaic modules, wherein the component materials of glass powder with a predetermined ratio are mixed evenly to prepare a mixture, and a glass liquid is obtained by melting treatment, and the glass liquid is quenched with water to obtain a granular glass frit, which is dried, ball-milled, and sieved to obtain a glass body powder; the component materials of the ink oil are mixed with the glass body powder to prepare a slurry, which is ground and homogenized to obtain a temperable high-temperature transparent glass glaze. The present application optimizes the component materials of the glass powder so that the prepared double-glass photovoltaic module has high transparency, good acid resistance, high tempering tolerance, and strong anti-PID attenuation ability. Through fine process control, energy consumption and waste generation in the production process are reduced, which is in line with the green and environmentally friendly production concept. The preparation method of the present application can significantly improve the performance of photovoltaic modules and has high industrial application value.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic modules, and in particular to a tempered high-temperature transparent glass glaze and a preparation method and application thereof. Background Art

[0002] At present, in the field of BIPV (building integrated photovoltaic), high-temperature transparent glaze is widely used for the surface treatment of photovoltaic glass. This glaze can be sintered at high temperature to form a transparent protective film, which improves the weather resistance and corrosion resistance of photovoltaic modules. However, the high-temperature transparent glaze currently used has the following problems: (1) High sodium oxide content: The sodium oxide content of the existing high-temperature transparent glaze is about 8%. Although it can ensure a certain transmittance, the excessive sodium oxide content will cause the performance of photovoltaic modules to decay under certain conditions. (2) Insufficient anti-PID decay performance: During operation, photovoltaic modules are easily affected by potential induced decay (PID). When testing the anti-PID decay of the module (85℃, 85% RH, -1500V, 192h), the decay rate of the current high-temperature transparent glaze is about 4.5%. In addition, some modules were damaged during the test, indicating that the PID decay rate of the existing high-temperature transparent glaze is high and cannot meet the requirements of long-term stable operation of photovoltaic modules. (3) Insufficient acid resistance: Current high-temperature transparent glazes are susceptible to corrosion in acidic environments and do not have good acid resistance, which limits their application in certain special environments, such as seaside areas, chemical plants, and other areas with strong corrosiveness. (4) Poor tempering tolerance of acid-resistant glazes: In order to improve the acid resistance of high-temperature transparent glazes, researchers have developed an acid-resistant glaze. However, this acid-resistant glaze has poor tolerance during the tempering process. That is, within the temperature range of 680-720℃, different color hues will appear when tempered at different temperatures, affecting the appearance and performance of photovoltaic modules.

[0003] Therefore, existing high-temperature transparent glazes have deficiencies in terms of PID attenuation resistance, acid resistance, and tempering tolerance, and are in urgent need of improvement. In view of this, it is necessary to provide an improved temperable high-temperature transparent glass glaze and its preparation method and application to solve the above problems. Summary of the Invention

[0004] In view of the technical problems existing in the background technology, the present application provides a temperable high-temperature transparent glass glaze and its preparation method and application, aiming to solve the technical problems of insufficient performance of high-temperature transparent glaze in terms of anti-PID attenuation, acid resistance and tempering tolerance.

[0005] In a first aspect, an embodiment of the present application provides a method for preparing a tempered high-temperature transparent glass glaze, comprising the following steps:

[0006] S1. The components of the glass powder are added to a mixer and mixed uniformly to obtain a mixture; the components of the glass powder include, by mass percentage: 30-40% silicon dioxide, 1-5% aluminum oxide, 8-10% boron oxide, 35-45% bismuth oxide, 1-5% sodium oxide, 1-5% lithium oxide, 2-6% titanium dioxide, 0.5-2% calcium oxide and 1-3% zinc oxide, the sum of the components being 100%;

[0007] S2. The mixture obtained in step S1 is added to a furnace, preheated, and then melted to obtain molten glass;

[0008] S3. The glass liquid obtained in step S2 is water quenched to obtain a granular glass frit;

[0009] S4. The granular glass frit obtained in step S3 is dried and ball-milled to obtain glass powder;

[0010] S5. The glass powder obtained in step S4 is sieved to collect powder larger than 10 μm and repeat step S4 to obtain a glass powder;

[0011] S6. The component materials of the varnish are mixed uniformly, the vitreous powder obtained in step S5 is added, and mixed uniformly to obtain a slurry;

[0012] S7. The slurry obtained in step S6 is mixed and ground to obtain a tempered high-temperature transparent glass glaze.

[0013] In the technical solution of the embodiment of the present application, by optimizing the component materials of the glass powder, the anti-attenuation performance of the final glaze can be significantly improved. This means that the prepared photovoltaic module has a lower PID attenuation rate under high temperature, high humidity and electric field, thereby extending the service life of the photovoltaic module. Through the synergistic effect between the various components, the final glaze has better corrosion resistance in an acidic environment, which broadens the application range of photovoltaic modules, especially in highly corrosive environments. By precisely controlling the temperature of the furnace and the melting process, as well as the subsequent ball milling and screening treatment, a glass glaze with better tempering tolerance can be obtained.

[0014] In some embodiments, the temperature of the preheating treatment is 550-650° C., and the preheating time is 15-25 minutes; the temperature of the melting treatment is 1100-1300° C., and the melting time is 50-70 minutes.

[0015] In this embodiment, the preheating process helps reduce temperature gradients within the material, resulting in a more uniform temperature distribution throughout the material, which facilitates subsequent melting. High-temperature melting ensures that the glass powder components are fully melted, forming a uniform molten glass, which improves the performance of the final product. Precisely controlling the preheating and melting processes yields a glass glaze with excellent physical and chemical properties, such as improved heat resistance, transparency, and acid and alkali resistance—all crucial for photovoltaic modules.

[0016] In some embodiments, the material of the ball mill is zirconia, and the ball milling time is 1 to 2 hours.

[0017] In this embodiment, the zirconium oxide ball milling medium has high hardness and wear resistance, and can achieve uniform refinement and dispersion of glass powder in a relatively short time. The fine powder helps to reduce light scattering and improve the transparency of the final product.

[0018] In some embodiments, the mesh size of the sieve used in the sieving process is 1700-1800 mesh, and the particle size of the obtained glass powder is less than 10 μm.

[0019] In this embodiment, the screen has very fine mesh, effectively separating glass powder particles with a size less than 10 μm, ensuring that the particle size distribution of the powder falls within a very narrow range. Sieving with a high-mesh screen removes larger particles and impurities, thereby improving the purity of the powder. Precisely controlled particle size distribution helps optimize final product properties, such as transparency, strength, and thermal stability.

[0020] In some embodiments, the component materials of the varnish include, by mass percentage, 60-80% terpineol, 15-25% butyl carbitol, and 5-15% acrylic resin, and the sum of the components is 100%; the mass ratio of the glass powder to the varnish is (70-75): (25-30).

[0021] In this embodiment, these components of the varnish can provide good printing properties, ensure that the printing process is carried out smoothly, and reduce printing defects. The mixing of terpineol and butyl carbitol can provide appropriate viscosity, so that the varnish can fully wet the glass powder and maintain good fluidity. Acrylic resin, as a binding agent, helps to improve the dispersibility of the glass powder in the varnish and prevents powder from agglomerating. Acrylic resin can also enhance the adhesion of the varnish to the glass surface, which is conducive to subsequent printing or coating processes. Simultaneously, acrylic resin can form a protective film on the glass surface, improving the durability and weather resistance of the coating. Selecting an appropriate amount of acrylic resin can ensure that the coating maintains a higher transparency after drying and does not affect the photoelectric conversion efficiency of the photovoltaic module.

[0022] In a second aspect, an embodiment of the present application provides a temperable high-temperature transparent glass glaze, which is prepared by the preparation method of the first aspect.

[0023] In a third aspect, embodiments of the present application provide a double-glass photovoltaic module comprising a front glass panel, an adhesive film, a cell, and a back glass panel. A film comprising the tempered high-temperature transparent glass frit described in the second aspect is printed on the surface of the front glass panel, wherein the mass fraction of the tempered high-temperature transparent glass frit in the film is 75-98 wt%. By controlling the proportion of the tempered high-temperature transparent glass frit, a double-glass photovoltaic module with excellent performance can be obtained.

[0024] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the technical solution of this application, the following is a brief introduction to the drawings used in this application. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0026] Figure 1 This is a physical picture of the double-glass photovoltaic module prepared in Example 1 of this application. DETAILED DESCRIPTION

[0027] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0029] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0030] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0032] The sodium oxide content of the high-temperature transparent glaze in the existing technology is about 8%. The test module is PID attenuation-resistant (85°C, 85% RH, -1500V, 192h), and the attenuation rate is about 4.5%. In addition, some modules were damaged during the test, and the PID attenuation rate was high. In addition, this transparent glaze is not acid-resistant and cannot meet the needs of long-term stable operation of photovoltaic modules. The tempering tolerance of acid-resistant glaze is poor, and different color hues will appear when tempered at different temperatures, affecting the appearance and performance of photovoltaic modules.

[0033] In order to solve the technical problem that high-temperature transparent glazes have insufficient performance in terms of anti-PID attenuation, acid resistance and tempering tolerance, the present application provides a temperable high-temperature transparent glass glaze and its preparation method and application. Specifically, by optimizing the component materials of the glass powder, the prepared double-glass photovoltaic module has high transparency, good acid resistance, high tempering tolerance, and strong anti-PID attenuation ability.

[0034] In a first aspect, an embodiment of the present application provides a method for preparing a tempered high-temperature transparent glass glaze, comprising the following steps:

[0035] S1. The components of the glass powder are added to a mixer and mixed uniformly to obtain a mixture; the components of the glass powder include, by mass percentage: 30-40% silicon dioxide, 1-5% aluminum oxide, 8-10% boron oxide, 35-45% bismuth oxide, 1-5% sodium oxide, 1-5% lithium oxide, 2-6% titanium dioxide, 0.5-2% calcium oxide and 1-3% zinc oxide, the sum of the components being 100%;

[0036] S2. The mixture obtained in step S1 is added to a furnace, preheated, and then melted to obtain molten glass;

[0037] S3. The glass liquid obtained in step S2 is water quenched to obtain a granular glass frit;

[0038] S4. The granular glass frit obtained in step S3 is dried and ball-milled to obtain glass powder;

[0039] S5. The glass powder obtained in step S4 is sieved to collect powder larger than 10 μm and repeat step S4 to obtain a glass powder;

[0040] S6. The components of the varnish are mixed uniformly, the vitreous powder obtained in step S5 is added, and mixed uniformly at a speed of 500 to 550 r / min to obtain a slurry;

[0041] S7. The slurry obtained in step S6 is mixed and ground by a two-roll mill at a rotation speed of 1800 to 2100 r / min to obtain a tempered high-temperature transparent glass glaze.

[0042] By precisely blending the different chemical components, we create a glass glaze that maintains transparency at high temperatures and exhibits excellent properties during tempering. The interaction of these components during the melting, quenching, drying, milling, and screening processes creates a glass glaze with excellent physical and chemical properties.

[0043] Furthermore, in some embodiments, the preheating temperature is 550-650° C., the preheating time is 15-25 minutes, and the melting temperature is 1100-1300° C., the melting time is 50-70 minutes.

[0044] In the technical solution of the embodiments of this application, the purpose of the preheat treatment is to slowly heat the material to a certain temperature to reduce internal stress and prevent cracks. The melt treatment temperature range and time period ensure that the material is fully melted and help improve the uniformity and purity of the material.

[0045] Furthermore, in some embodiments, the ball mill material is zirconia, the ball milling time is 1 to 2 hours, the mesh size of the sieve for sieving is 1700 to 1800 mesh, and the particle size of the obtained glass powder is less than 10 μm.

[0046] Glass powder with a particle size of less than 10 μm can ensure high transparency and uniform component distribution in the final product.

[0047] Furthermore, in some embodiments, the components of the varnish include, by weight, 60-80% terpineol, 15-25% butyl carbitol, and 5-15% acrylic resin, with the sum of these components being 100%. The mass ratio of the glass powder to the varnish is (70-75):(25-30), preferably 72:28.

[0048] In the technical scheme of the present application embodiment, terpineol helps to dissolve and stabilize other components, butyl carbitol is used to improve the fluidity and stability of the mixture, and also helps to improve the surface finish of the final product, and acrylic resin can improve the viscosity and the adhesiveness of the mixture, helps the uniform dispersion of glass powder in the glaze. Vitreous body powder and varnish ratio have ensured that glass powder can obtain good dispersion and stability in varnish, thereby prepares uniform, high-quality glaze. Higher glass powder ratio helps to improve the thermal stability and mechanical properties of glaze, and varnish then ensures the processability and applicability of glaze. By accurately controlling these components and ratio, a glass glaze with ideal performance can be prepared, and this glaze, when being applied to pottery, glass or other base materials, can provide good transparency, heat resistance and toughening performance.

[0049] In a second aspect, an embodiment of the present application provides a tempered high-temperature transparent glass glaze, which is prepared by the preparation method of the first aspect.

[0050] In a third aspect, embodiments of the present application provide a double-glass photovoltaic module comprising a front glass panel, an adhesive film, a cell, and a back glass panel. A film comprising the tempered high-temperature transparent glass frit described in the second aspect is printed on the surface of the front glass panel, wherein the mass fraction of the tempered high-temperature transparent glass frit in the film is 75-98 wt%. By controlling the proportion of the tempered high-temperature transparent glass frit, a double-glass photovoltaic module with excellent performance can be obtained.

[0051] The preparation method of the double-glass photovoltaic module includes the following steps:

[0052] The tempered high-temperature transparent glass glaze is evenly mixed with pearlescent powder, structural color powder and color ink, and coated on the glass surface by screen printing with a wet film thickness of 15 to 25 μm. The glass is then cured by baking and tempered at high temperature to obtain a colored BIPV front glass. The mass ratio of the tempered high-temperature transparent glass glaze, pearlescent powder, structural color powder and color ink is (60 to 90): (1 to 20): (1 to 20): (0 to 10). The curing temperature is 170 to 200°C, and the curing time is 3 to 8 minutes. The tempering temperature is 680 to 720°C, and the tempering time is 120 to 150 seconds. The front glass is made into a double-glass component through a lamination and stacking process, and the stacking is front glass-film-cell-film-back glass.

[0053] Some specific examples are listed below. It should be noted that the examples described below are exemplary and are only used to explain the present application, and should not be construed as limiting the present application. Where specific techniques or conditions are not specified in the examples, the techniques or conditions described in the literature in this area or the product specifications are used. Reagents or instruments used without manufacturer's indication are all commercially available conventional products.

[0054] 1. Preparation method

[0055] Example 1

[0056] This embodiment provides a method for preparing a tempered high-temperature transparent glass glaze, comprising the following steps:

[0057] S1. The components of the glass powder are added to a mixer and mixed evenly to obtain a mixture; the components of the glass powder are composed of 35% silicon dioxide, 3% aluminum oxide, 9% boron oxide, 40% bismuth oxide, 3% sodium oxide, 3% lithium oxide, 4% titanium dioxide, 1% calcium oxide, and 2% zinc oxide by mass.

[0058] S2. The mixture obtained in step S1 is added to a furnace and preheated at 600°C for 20 min, followed by melting at 1200°C for 60 min to obtain a molten glass.

[0059] S3. The glass liquid obtained in step S2 is quickly poured into pure water at room temperature for quenching, thereby obtaining a quenched granular glass frit;

[0060] S4. The granular glass frit obtained in step S3 is placed in an electric blast drying oven for full drying and then placed in a ball mill for milling. The ball mill material is zirconia and the milling time is 1.5h to obtain a glass powder particle size of about 10μm.

[0061] S5. The glass powder obtained in step S4 was sieved using a vibrating stainless steel sieve with a mesh size of 1800, and powder larger than 10 μm was collected and step S4 was repeated until all powder particles were less than 10 μm to obtain a glass powder;

[0062] S6. The components of the varnish, 70% terpineol, 20% butyl carbitol, and 10% acrylic resin, were mixed and the vitreous powder obtained in step S5 was added, wherein the mass fraction of the vitreous powder was 72% and the mass fraction of the varnish was 28%, and the mixture was mixed at a speed of 500 r / min to obtain a slurry;

[0063] S7. The slurry obtained in step S6 is mixed and ground again by a two-roll mill at a rotation speed of 2000 r / min to obtain a tempered high-temperature transparent glass glaze.

[0064] The glass glaze prepared in Example 1 was used to prepare a double-glass photovoltaic module, specifically: the glass glaze was evenly mixed with mica-based pearlescent powder and photonic crystal powder in a mass ratio of 95:3:2, and coated on the glass surface by screen printing with a wet film thickness of 20 μm. The glass was then baked and cured at 180°C for 5 minutes and tempered at 700°C for 120 seconds to obtain a colored BIPV front glass; the front glass was made into a double-glass module through a lamination and stacking process, with the stacking being front glass-film-cell-film-back glass. The actual picture of the obtained double-glass photovoltaic module is shown in FIG. Figure 1 shown.

[0065] Example 2

[0066] This embodiment provides a method for preparing a tempered high-temperature transparent glass glaze. Compared with Example 1, the only difference is that the component materials of the glass powder include, by mass percentage, 34% silicon dioxide, 2% aluminum oxide, 10% boron oxide, 41% bismuth oxide, 3% sodium oxide, 4% lithium oxide, 3% titanium dioxide, 1% calcium oxide and 2% zinc oxide. Other experimental parameters and conditions are basically the same as those in Example 1 and are not repeated here.

[0067] Comparative Examples 1-5

[0068] Comparative Examples 1-5 respectively provide a method for preparing a tempered high-temperature transparent glass glaze. Compared with Example 1, the only difference is that the component material ratios of the glass powder and the varnish are different, as shown in Table 2. The other experimental parameters and conditions are basically the same as those in Example 1 and are not repeated here.

[0069] Comparative Example 6

[0070] Comparative Example 6 provides a glass glaze comprising, by mass percentage, 38% silicon dioxide, 12% zinc oxide, 15% boron oxide, 3% potassium oxide, 3% titanium dioxide, 8% sodium oxide, 18% ethylene glycol, and 3% acrylic resin. The glass glaze was used to prepare a double-glass photovoltaic module according to the method of Example 1 for testing PID attenuation.

[0071] 2. Test Method

[0072] The performance test methods of the glass glazes prepared in the examples and comparative examples are shown in Table 1.

[0073] Table 1 Performance test methods of embodiments and comparative examples

[0074]

[0075]

[0076] III. Analysis of test results of various embodiments and comparative examples The test results of the embodiments and comparative examples are shown in Tables 2 and 3.

[0077] Table 2 Performance test results of examples and comparative examples

[0078]

[0079]

[0080] Table 3 Test results of tempering tolerance of glass enamel prepared in Example 1

[0081]

[0082] According to the test, the PID attenuation rate of the double-glass photovoltaic module prepared in Example 1 is 1.98%, and the PID attenuation rate of the double-glass photovoltaic module prepared in Comparative Example 6 using the existing glass glaze is 4.35%.

[0083] It can be seen from the test results that the tempered high-temperature transparent glass glaze obtained according to the method provided in the embodiment of the present application has excellent acid resistance. After immersion in 5% hydrochloric acid / 5% sulfuric acid for 24 hours, there is no color change and no powdering or shedding; there is no color change, no powdering, and no shedding after boiling or immersion in water; the adhesion, peel strength, PCT accelerated aging test and coating hardness all meet the requirements; the transmittance is increased by 1-2% compared with the previous test, reaching 85%, and the test spectrum range is: 380-1100nm; the tempering tolerance is high, and the color difference value ΔE is less than 1.5 when tempered in the range of 680-720℃; the anti-PID attenuation ability is strong, and the attenuation rate is less than 4% when tested under the conditions of 85℃, 85% RH, -1500V, and 192h.

[0084] It should be noted that the present application is not limited to the above-mentioned embodiments. The above-mentioned embodiments are merely examples, and any embodiments having substantially the same structure and effect as the technical concept within the scope of the present application are all included in the technical scope of the present application. In addition, without departing from the scope of the present application, any other embodiments that can be conceived by those skilled in the art and that combine some of the constituent elements in the embodiments are also included in the scope of the present application.

Claims

1. A method for preparing a tempered high-temperature transparent glass glaze, characterized in that: The following steps are involved: S1. Add the component materials of the glass powder to a mixer and mix them evenly to obtain a mixture; the component materials of the glass powder include, by mass percentage: 30-40% silicon dioxide, 1-5% aluminum oxide, 8-10% boron oxide, 35-45% bismuth oxide, 1-5% sodium oxide, 1-5% lithium oxide, 2-6% titanium dioxide, 0.5-2% calcium oxide and 1-3% zinc oxide, the sum of the components being 100%; S2. The mixture obtained in step S1 is added to a furnace, preheated, and then melted to obtain molten glass; S3. The glass liquid obtained in step S2 is water quenched to obtain a granular glass frit; S4. The granular glass frit obtained in step S3 is dried and ball-milled to obtain glass powder; S5. The glass powder obtained in step S4 is sieved to collect powder larger than 10 μm and repeat step S4 to obtain a glass powder; S6. The components of the varnish are mixed uniformly, and the vitreous powder obtained in step S5 is added and mixed uniformly to obtain a slurry; the components of the varnish include, by mass percentage, 60-80% terpineol, 15-25% butyl carbitol, and 5-15% acrylic resin, with the sum of the components being 100%; the mass ratio of the vitreous powder to the varnish is (70-75):(25-30); S7. The slurry obtained in step S6 is mixed and ground to obtain a tempered high-temperature transparent glass glaze.

2. The method for preparing the tempered high-temperature transparent glass glaze according to claim 1, characterized in that: In step S2, the preheating temperature is 550-650°C, and the preheating time is 15-25 minutes.

3. The method for preparing the tempered high-temperature transparent glass glaze according to claim 2, characterized in that: The temperature of the melting treatment is 1100-1300° C., and the melting time is 50-70 minutes.

4. The method for preparing the tempered high-temperature transparent glass glaze according to claim 1, characterized in that: In step S4, the ball milling time is 1 to 2 hours.

5. The method for preparing the tempered high-temperature transparent glass glaze according to claim 1, characterized in that: In step S5, the mesh size of the sieve used in the sieving process is 1700-1800 mesh.

6. The method for preparing the tempered high-temperature transparent glass glaze according to claim 5, characterized in that: The particle size of the obtained glass powder is less than 10 μm.

7. A tempered high-temperature transparent glass glaze, characterized in that: The glass glaze is prepared by the method for preparing the tempered high-temperature transparent glass glaze according to any one of claims 1 to 6.

8. A double-glass photovoltaic module, characterized in that: The invention is composed of a front glass, an adhesive film, a battery cell and a back glass. The surface of the front glass is printed with a film comprising the tempered high-temperature transparent glass glaze according to claim 7, and the mass fraction of the tempered high-temperature transparent glass glaze in the film is 75-98wt%.

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