Anti-PID solar cell module and preparation method and application thereof

Abstract

The invention provides an anti-PID solar cell module and a preparation method and application thereof, and relates to the technical field of solar cells. Specifically, the solar cell module comprises cover plate glass, an upper-layer packaging adhesive film, a cell piece, a lower-layer packaging adhesive film and a back plate which are connected in sequence; raw materials of the upper-layer packaging adhesive film comprise a passivating agent, and the passivating agent comprises a first component and a second component; the first component comprises an alkaline earth metal ionic compound, and the second component comprises at least one of a quaternary ammonium salt ionic compound, a crown ether compound and a zeolite imidazate skeleton structure material. The passivation agent is added into a conventional adhesive film substrate, sodium ion migration is prevented from the source, the passivation effect is long-acting and reliable, and the passivation agent has good cost and process advantages and has good application prospects.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solar cells, in particular to an anti-PID solar cell module and a preparation method and application thereof. BACKGROUND

[0002] In actual power station operation, photovoltaic modules are subjected to harsh environmental conditions such as high temperature, high humidity and negative bias for a long time. Potential Induced Degradation (PID) is one of the main reasons for the significant performance degradation of the module. The mechanism is generally believed to be that there is a negative bias of several hundred to several thousand volts between the internal circuit of the module and the grounding frame, which drives sodium ions to precipitate from the cover plate glass, migrate through the encapsulating material under the action of the electric field, and migrate to the surface of the cell. These ions accumulate in the antireflection layer and passivation layer of the cell, which destroys the good passivation effect of the cell, causing the surface of the cell to compound, thereby greatly reducing the fill factor, open circuit voltage and short circuit current of the module, and causing serious loss of output power.

[0003] Traditionally, the methods for inhibiting PID effect mainly focus on the system end and the cell end. The system end method, such as negative grounding, eliminates the negative bias of the module to the ground by changing the electrical connection mode at the inverter end. The cell end method improves the compactness of the film layer by optimizing the refractive index and deposition process of the passivation layer and antireflection film to block the invasion of sodium ions. However, these methods have limitations. On the one hand, the system end method is subject to power station design and cannot completely eliminate the PID risk in all scenarios; on the other hand, the cell end method is demanding on the process window and may conflict with other performance indicators such as light absorption rate.

[0004] Specifically, the existing solutions to the PID effect have the following problems: (1) It is essentially "passive blocking" rather than "active passivation": the mechanism of high resistivity encapsulating materials (such as POE) and EPE structure is to increase the impedance of the ion migration path, which is equivalent to setting a higher barrier; however, under long-term, severe heat and high voltage stress, the penetration of trace water vapor and the continuous action of the electric field may still gradually reduce the insulation performance of the material; once a small amount of sodium ions successfully pass through the barrier to reach the surface of the cell, PID degradation will still occur.

[0005] (2) Over-reliance on the initial performance and stability of the material after aging: the anti-PID performance of POE and other materials is closely related to their purity, catalyst residue, crosslinking agent system, etc. More importantly, after ultraviolet irradiation and heat and humidity aging, any polymer material has the risk of performance degradation. If the volume resistivity of the material decreases significantly with aging, its anti-PID ability will be weakened, which poses a long-term reliability risk.

[0006] (3) Process and cost issues brought about by EPE structure: Although EPE film theoretically combines the advantages of both, it also brings new problems. First, its production cost is higher than that of single EVA or POE. Second, the multilayer structure is more sensitive to temperature, pressure and vacuum during lamination. If the fusion or cross-linking degree between the layers is inconsistent, it may lead to new quality defects such as bubbles or delamination inside the component. In addition, this structure does not fundamentally solve the problem of ion migration, but only increases the length and complexity of the migration path.

[0007] (4) Failure to address the negative impact of migrated ions: Existing technologies all focus on blocking ions, but they have no ability to "neutralize" or "inertize" ions that have inevitably migrated to the surface of the cell or the interface of the encapsulation material / cell; these accumulated ions are still potential PID triggering points.

[0008] Therefore, there is an urgent need for a solution that addresses the PID effect fundamentally and broadly by starting with the component packaging structure itself, without relying on external system conditions. In view of this, the present invention is proposed. Summary of the Invention

[0009] The primary objective of this invention is to provide an anti-PID solar cell module to address the aforementioned deficiencies in suppressing or mitigating PID effects in existing system-level and cell-level systems.

[0010] The second objective of this invention is to provide a method for preparing the aforementioned anti-PID solar cell module.

[0011] A third objective of the present invention is to provide the use of the aforementioned anti-PID solar cell module in solar cells.

[0012] In order to achieve the above-mentioned objectives of the present invention, the following technical solution is adopted: An anti-PID solar cell module includes a cover glass, an upper encapsulating film, solar cells, a lower encapsulating film, and a backsheet connected in sequence. The raw material of the upper encapsulating film includes a passivating agent, and the passivating agent includes a first component and a second component; The first component includes alkaline earth metal ionic compounds, and the second component includes at least one of quaternary ammonium salt ionic compounds, crown ether compounds, and zeolite imidazole ester framework structural materials.

[0013] In one embodiment, the alkaline earth metal ion compound includes at least one of calcium benzoate, magnesium benzoate, calcium stearate, magnesium stearate, calcium salicylate, magnesium salicylate, calcium citrate, and magnesium citrate.

[0014] In one embodiment, the quaternary ammonium salt ionic compound includes at least one of tetraethylammonium chloride and tetrabutylammonium bromide.

[0015] In one embodiment, the crown ether compound includes at least one of 12-crown ether-4, 15-crown ether-5, 18-crown ether-6, 21-crown ether-7, dibenzo-18-crown ether-6, and benzo-15-crown ether-5.

[0016] In one embodiment, the zeolite imidazole ester framework material includes at least one of ZIF-8, ZIF-67, ZIF-90, and ZIF-68.

[0017] In one embodiment, the substrate of the upper encapsulating film includes EVA resin, and the VA content in the EVA resin is 25% to 36%.

[0018] In one embodiment, the upper encapsulating film further includes one or more of a crosslinking agent, an antioxidant, and a coupling agent.

[0019] In one embodiment, the mass ratio of the first component to the EVA resin is 0.6% to 2%, and the mass ratio of the second component to the EVA resin is 0.6% to 1.2%.

[0020] In one embodiment, the thickness of the upper encapsulating film is 0.3 mm to 0.8 mm.

[0021] A method for preparing the anti-PID solar cell module includes the following steps: S1. The raw materials containing the base resin and passivating agent are mixed and fed into a twin-screw extruder. After mixing, plasticizing, filtering, and degassing, the mixture is extruded. The extruded material is then rolled to obtain the upper encapsulation film. S2. The cover glass, the upper encapsulation film, the battery cells, the lower encapsulation film, and the back sheet are stacked in sequence, laminated, and packaged to obtain an anti-PID solar cell module.

[0022] And the application of the aforementioned anti-PID solar cell module in solar cells.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention provides a simple and easily mass-producible anti-potential-induced degradation (PID) solar cell based on an active passivation mechanism, and its fabrication method, applicable to high-efficiency cell production in the photovoltaic industry. Addressing the shortcomings of existing anti-PID technologies, this invention does not rely on the permanent high insulation performance of encapsulation materials or complex multilayer structures for active anti-PID solutions. Instead, it introduces functional passivating materials to actively intervene in and neutralize the inducing factors of PID at the source. Even if the resistance of the encapsulation material decreases due to aging, or a small number of ions migrate to the cell interface, this solution can still effectively passivate its activity, thereby achieving a more fundamental, longer-lasting, and simple and stable anti-PID capability, comprehensively improving the long-term reliability of photovoltaic modules under harsh environments.

[0024] (1) Active passivation, prevention at the source: This invention creates a dual active passivation mechanism of "ion competition for site occupation" and "in-situ molecular capture". The calcium or magnesium ions released by the first component of the passivating agent can preferentially occupy the ion migration channel, acting as an ion plug to hinder the rapid migration of sodium ions. The cavity size of the second component is highly matched with that of sodium ions, and can selectively capture and fix the migrated sodium ions like a molecular trap, forming a stable complex and deactivating them.

[0025] (2) Long-lasting and reliable, decoupled from aging: The passivating agent of the present invention has a chemical passivation mechanism that does not depend on the initial bulk resistivity of the EVA film; even if the insulation performance of the film decreases due to long-term aging, the additive can still play a passivation role, solving the fundamental pain point of insufficient long-term reliability of the prior art.

[0026] (3) Simple structure, significant cost and process advantages: This invention does not require the use of expensive POE or complex EPE structure. It can achieve excellent anti-PID performance by simply adding passivating agent to ordinary EVA formulation. It has excellent process compatibility, and the cost is far lower than existing solutions, making it easy to promote industrialization.

[0027] (4) Double insurance, comprehensive protection: This invention not only prevents new sodium ion intrusion, but also removes sodium ions that have already intruded, providing double protection of prevention and remediation, and greatly improving the reliability and safety of components in harsh environments. Detailed Implementation

[0028] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. However, those skilled in the art will understand that the embodiments described below are some embodiments of the present invention, but not all embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] The first aspect of the present invention is to provide an anti-PID solar cell module, comprising a cover glass, an upper encapsulating film, a solar cell, a lower encapsulating film, and a backsheet connected in sequence.

[0031] It is understood that the above-mentioned components in this invention conform to the basic functions of a solar cell module.

[0032] (a) Cover glass: As an encapsulation and protective material for crystalline silicon and thin-film photovoltaic cells, it maximizes the transmission of sunlight to the cells while protecting them from external damage. In some embodiments, the cover glass is made of low-iron ultra-clear glass to ensure high solar transmittance, low absorptivity, and high reflectivity.

[0033] (b) Upper and lower encapsulating films: These primarily serve to bond the components together, securing the solar cells between the photovoltaic glass and the backsheet to ensure they do not shift under various environmental conditions, thus guaranteeing the stability of the module structure. Furthermore, the films effectively block damage to the solar cells from external factors such as moisture, dust, and ultraviolet radiation, extending their lifespan.

[0034] In some embodiments, the upper encapsulating film is an EVA film, with ethylene-vinyl acetate copolymer as the main base material and other functional additives added. The lower encapsulating film includes, but is not limited to, one or more of EVA film (ethylene-vinyl acetate copolymer), POE film (polyolefin elastomer), and EPE film (EVA-POE-EVA), and optionally, any functional additives are added.

[0035] (c) Solar cell: As the basic building block of a solar cell, it directly converts solar energy into electrical energy. No limitations are placed on its type in this invention; it can be a monocrystalline silicon solar cell, a polycrystalline silicon solar cell, amorphous silicon solar cell, etc.

[0036] (d) Backsheet: As the bottom protective material of solar cell modules, it prevents external factors such as moisture and dust from corroding the cells; and provides electrical insulation to ensure the safe operation of the modules.

[0037] In this invention, a passivating agent is provided in the raw material of the upper encapsulating film, and the passivating agent includes a first component and a second component; the first component includes an alkaline earth metal ionic compound, and the second component includes at least one of a quaternary ammonium salt ionic compound, a crown ether compound, and a zeolite imidazole ester framework structural material.

[0038] It is worth noting that in the initially prepared anti-PID solar cell module, the passivating agent is encapsulated inside the upper encapsulation film; during the high-temperature process of module lamination, the passivating agent will volatilize from the encapsulation film layer, form gaseous molecules, then diffuse and finally condense, and then play a role by chemical adsorption on the surface of the cell (and all internal interfaces such as glass).

[0039] The first component belongs to alkaline earth metal ionic compounds, such as calcium (Ca). 2+ ), magnesium (Mg) 2+ Oxides, hydroxides, or organic salts of sodium ions; these ions have a higher oxidation state than sodium ions (Na+). + More stable chemical properties and lower migration rate.

[0040] The second component is a macromolecular organic ionic compound or cage-like molecule, such as quaternary ammonium salt ionic compounds, crown ether compounds or zeolite imidazole ester framework materials; these substances have specific cavity structures or functional groups, which can selectively capture and fix sodium ions.

[0041] The core of this invention lies in providing an active, intrinsic anti-PID photovoltaic module solution; by introducing a specific passivating agent into the key materials of the module encapsulation, the occurrence of potential-induced degradation (PID) is fundamentally suppressed. The anti-PID mechanism of the passivating agent in this invention is not a simple physical barrier, but rather achieves active intervention through the following chemical and physicochemical interactions: (A) Ion competition and occupancy effect: Under the action of an electric field, when Na precipitates in the glass... + When attempting to migrate to the surface of the solar cell, the Ca, which has a higher migration barrier and is pre-existing in the upper encapsulation film and / or the cover glass, 2+ or Mg 2 + They preferentially occupy ion migration channels or interface defect sites in the encapsulation material; these stable ions act as plugs, effectively hindering the entry of Na+. + Rapid migration.

[0042] (B) In-situ capture and immobilization effect: The second component additive dispersed in the material, whose molecular cavities affect Na + It possesses a high degree of selective recognition and complexation capabilities; it can act like a trap, drawing in migrating Na+. + It is firmly captured and fixed within its cavity, forming a stable complex, thereby preventing it from continuing to advance to the surface of the cell and damaging the passivation layer.

[0043] (C) Interfacial potential modulation effect: Certain added functional ions (such as specific quaternary ammonium salt cations) can accumulate at the interface between the battery cell and the upper encapsulation film, effectively neutralizing the Na+. + The accumulated local space charge modulates the band structure at the interface, electrically eliminating the driving force that leads to intensified surface recombination.

[0044] In one preferred embodiment, the alkaline earth metal ion compound includes at least one of calcium ions or magnesium ions; in some embodiments, the alkaline earth metal ion compound includes at least one of calcium benzoate, magnesium benzoate, calcium stearate, magnesium stearate, calcium salicylate, magnesium salicylate, calcium citrate, and magnesium citrate.

[0045] In a preferred embodiment, the quaternary ammonium salt ionic compound includes, but is not limited to, tetraethylammonium chloride, tetrabutylammonium bromide, etc.

[0046] In a preferred embodiment, the crown ether compound includes at least one of 12-crown ether-4, 15-crown ether-5, 18-crown ether-6, 21-crown ether-7, dibenzo-18-crown ether-6, and benzo-15-crown ether-5, more preferably benzo-15-crown ether-5, and even more preferably benzo-15-crown ether-5 or 18-crown ether-6.

[0047] In a preferred embodiment, the zeolite imidazole ester skeleton material includes at least one of ZIF-8, ZIF-67, ZIF-90, and ZIF-68, more preferably ZIF-8.

[0048] In a more preferred embodiment, the first component comprises an alkaline earth metal ion compound and the second component comprises a crown ether compound; in a further preferred embodiment, the passivating agent is selected as a combination of calcium benzoate and a crown ether compound.

[0049] In a preferred embodiment, the thickness of the upper encapsulating film is 0.3mm to 0.8mm, including but not limited to any one or any two of 0.3, 0.4, 0.5, 0.6, 0.7, and 0.8 (mm).

[0050] In a preferred embodiment, the mass ratio of the first component to the second component is (0.6~2):(0.6~1.2).

[0051] In a preferred embodiment, the substrate of the upper encapsulating film includes EVA resin; in some embodiments, the EVA resin is obtained by polymerizing ethylene and vinyl acetate (VA), which can be purchased commercially or prepared by those skilled in the art, and its preparation process can be carried out through conventional synthetic routes in the organic field; in the EVA resin, the VA content is 25%~36%, that is, the content of repeating units in the resin synthesized from vinyl acetate is within the above range.

[0052] In a more preferred embodiment, the mass ratio of the first component to the EVA resin is 0.6% to 2%, including but not limited to any one or any two of the following values: 0.6%, 0.8%, 0.9%, 1.0%, 1.2%, 1.4%, 1.5%, 1.6%, 1.8%, and 2%; the mass ratio of the second component to the EVA resin is 0.6% to 1.2%, including but not limited to any one or any two of the following values: 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, and 1.2%.

[0053] In a preferred embodiment, the upper encapsulating film further includes one or more of a crosslinking agent, an antioxidant, and a coupling agent; in some embodiments, the crosslinking agent includes, but is not limited to, tert-butyl peroxycarbonate-2-ethylhexyl ester, bis(4-tert-butylcyclohexyl) peroxydicarbonate, etc., the antioxidant includes, but is not limited to, 1010, 1001, 1076, 2246, etc., and the coupling agent is a silane coupling agent, including, but not limited to, A-171, A-172, KH-550, KH-560, etc.

[0054] In a more preferred embodiment, the mass ratio of the crosslinking agent to the EVA resin is 0.8% to 2%, the mass ratio of the antioxidant to the EVA resin is 0.05% to 0.5%, and the mass ratio of the coupling agent to the EVA resin is 0.15% to 6%.

[0055] A second aspect of the present invention is to provide a method for preparing an anti-PID solar cell module as described in the first aspect, which mainly includes the following steps: S1. The raw materials containing the base resin and passivating agent are mixed and fed into a twin-screw extruder. After mixing, plasticizing, filtering, and degassing, the mixture is extruded. The extruded material is then rolled to obtain the upper encapsulation film. S2. The cover glass, the upper encapsulation film, the battery cells, the lower encapsulation film, and the back sheet are stacked in sequence, laminated, and packaged to obtain an anti-PID solar cell module.

[0056] In a preferred embodiment, the characteristic parameters of the twin-screw extruder include: a screw length-to-diameter ratio of 30:1 to 45:1 and a screw speed of 50 rpm to 800 rpm.

[0057] In a preferred embodiment, the lamination is carried out under vacuum conditions, with a lamination temperature of 120°C to 180°C, a pressure of 0.6 bar to 0.8 bar, and a duration of 8 min to 20 min.

[0058] A third aspect of the invention is to provide the use of an anti-PID solar cell module as described in the first aspect in the field of solar cells.

[0059] Example 1 (1) The formula for this embodiment is as follows: EVA resin (VA content 28%): 100 parts by weight; Crosslinking agent (tert-butyl percarbonate-2-ethylhexyl ester): 1.2 parts by weight; Antioxidant (1010): 0.15 parts by weight; Silane coupling agent (A-171): 0.3 parts by weight; Calcium benzoate: 1.2 parts by weight; Crown ether derivative (benzo-15-crown-5): 0.8 parts by weight.

[0060] (2) Weigh each component accurately according to the above formula; then put all raw materials into a high-speed mixer and mix for 8 minutes at room temperature to ensure uniformity; send the mixed material into a twin-screw extruder, and after melt blending, plasticizing, filtering and degassing (the specific parameters of this process are as follows), it is extruded by a T-die. After cooling, the extruded molten sheet is rolled, pulled and wound to obtain a functional upper layer encapsulation film with a thickness of 0.5 mm in this embodiment.

[0061] (2.1) Blending: The processing temperature is 100℃, the screw speed is 400rpm, the blending time is 8 minutes, and the vacuum degree is -0.05MPa; (2.2) Plasticization: The plasticization temperature is 120℃, the melt pressure is 18MPa, and the melt temperature is 110℃; (2.3) Filtration: The filter mesh size is 200 mesh, the initial pressure difference of the screen changer is 1MPa, and the screen changing pressure difference is set to 20MPa (the filter will be manually switched when this upper limit is reached). (2.4) Degassing: vacuum degree is -0.095MPa, temperature is 105℃, residence time is 40s.

[0062] (3) The following materials are sequentially laminated on a laminator: photovoltaic cover glass, the functional upper encapsulation film prepared above, N-type TOPCon cell string, ordinary POE lower encapsulation film, and composite backsheet; the laminated parts are placed in the laminator, vacuumed to the limit, and laminated for 12 minutes at 150°C and 0.7 bar; after lamination is completed, the solar cell module of this embodiment is obtained through subsequent processes such as cooling, framing, and junction box installation.

[0063] Example 2 It is basically the same as Example 1, except that calcium benzoate is replaced with magnesium benzoate.

[0064] Example 3 It is basically the same as Example 1, except that the crown ether derivative is replaced with ZIF-8.

[0065] Example 4 It is basically the same as Example 1, except that the crown ether derivative is replaced with hexadecyltrimethylammonium bromide.

[0066] Comparative Example 1 It is basically the same as Example 1, except that the addition of calcium benzoate is omitted.

[0067] Comparative Example 2 It is basically the same as Example 1, except that the crown ether derivative is not added.

[0068] Comparative Example 3 The following materials are sequentially laminated on a laminator: photovoltaic cover glass, ordinary EVA upper encapsulation film, N-type TOPCon cell string, ordinary POE lower encapsulation film, and composite backsheet; the laminated components are placed in the laminator, vacuumed to the limit, and laminated for 12 minutes at 150°C and 0.7 bar; after lamination is completed, subsequent processes such as cooling, framing, and junction box installation are performed to obtain the solar cell module of this embodiment. Test case The PID-192 test was conducted according to the IEC 62804 standard (85℃, 85% RH, -1500V). The test results are shown in Table 1 below.

[0069] Table 1

[0070] As can be seen from Table 1, by introducing a compound passivating agent with two specific components, the present invention successfully constructed a powerful active passivation function in a common EVA film system, achieving excellent and long-lasting anti-PID performance.

[0071] Although the present invention has been illustrated and described with specific embodiments, it should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; those skilled in the art should understand that modifications can be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein, without departing from the spirit and scope of the present invention; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention; therefore, this means that all such substitutions and modifications that fall within the scope of the present invention are included in the appended claims.

Claims

1. A PID-resistant solar cell module, characterized in that, It includes a cover glass, an upper encapsulation film, a battery cell, a lower encapsulation film, and a backplate connected in sequence; The raw material of the upper encapsulating film includes a passivating agent, and the passivating agent includes a first component and a second component; The first component includes alkaline earth metal ionic compounds, and the second component includes at least one of quaternary ammonium salt ionic compounds, crown ether compounds, and zeolite imidazole ester framework structural materials.

2. The anti-PID solar cell module according to claim 1, characterized in that, The alkaline earth metal ion compound includes at least one of calcium ions or magnesium ions. Preferably, the alkaline earth metal ion compound includes at least one of calcium benzoate, magnesium benzoate, calcium stearate, magnesium stearate, calcium salicylate, magnesium salicylate, calcium citrate, and magnesium citrate.

3. The anti-PID solar cell module according to claim 1, characterized in that, The quaternary ammonium salt ionic compounds include at least one of tetraethylammonium chloride and tetrabutylammonium bromide.

4. The anti-PID solar cell module according to claim 1, characterized in that, The crown ether compounds include at least one of 12-crown ether-4, 15-crown ether-5, 18-crown ether-6, 21-crown ether-7, dibenzo-18-crown ether-6, and benzo-15-crown ether-5.

5. The anti-PID solar cell module according to claim 1, characterized in that, The zeolite imidazole ester framework material includes at least one of ZIF-8, ZIF-67, ZIF-90, and ZIF-68.

6. The anti-PID solar cell module according to claim 1, characterized in that, The substrate of the upper encapsulating film includes EVA resin, and the VA content in the EVA resin is 25%~36%; Preferably, the upper encapsulating film further includes one or more of a crosslinking agent, an antioxidant, and a coupling agent.

7. The anti-PID solar cell module according to claim 6, characterized in that, The mass ratio of the first component to the EVA resin is 0.6% to 2%, and the mass ratio of the second component to the EVA resin is 0.6% to 1.2%.

8. The anti-PID solar cell module according to claim 1, characterized in that, The thickness of the upper encapsulating film is 0.3mm to 0.8mm.

9. A method for preparing an anti-PID solar cell module as described in any one of claims 1 to 8, characterized in that, Includes the following steps: S1. The raw materials containing the base resin and passivating agent are mixed and fed into a twin-screw extruder. After mixing, plasticizing, filtering, and degassing, the mixture is extruded. The extruded material is then rolled to obtain the upper encapsulation film. S2. The cover glass, the upper encapsulation film, the battery cells, the lower encapsulation film, and the back sheet are stacked in sequence, laminated, and packaged to obtain an anti-PID solar cell module.

10. Use of the anti-PID solar cell module as described in any one of claims 1 to 8 in the field of solar cells.

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