Research progress on encapsulation materials and 0BB encapsulation technology for high-efficiency photovoltaic cells
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为支撑HJT、TOPCon及钙钛矿/晶硅叠层等高效光伏电池向高功率、低损耗、长寿命方向发展，本文综述了光伏组件封装材料的研究进展与分类特性。重点分析了4种封装胶膜，即乙烯-醋酸乙烯共聚物（EVA）、有机硅、聚烯烃弹性体（POE）及新兴的光转共挤一体膜（EPE）材料。深入讨论了主流封装材料的物理性能、优劣及应用场景。对比了SWCT、点胶、焊接点胶三种无主栅（0BB）封装技术主流工艺路线的流程、优势与技术瓶颈，并阐述了适配0BB技术的封装胶膜（皮肤膜+常规胶膜、一体膜等）的发展现状。0BB技术通过取消主栅，能够降低银浆消耗、减少遮光面积、提升组件功率并增强其抗隐裂能力，是高效电池封装的核心方向之一，但仍面临工艺复杂度高、材料成本上升、胶膜适配性不足等挑战。未来封装技术的发展将聚焦材料配方优化、0BB工艺简化与成本控制，推动封装技术与高效电池的深度融合，为光伏产业降本增效提供支撑。
Abstract：To support the development of high-efficiency photovoltaic cells such as HJT,TOPCon,and perovskite/crystalline silicon tandem cells towards high power,low loss,and long lifetime,the research progress and classification characteristics of photovoltaic module encapsulation materials were summarized in this paper. Four types of encapsulation films were analyzed in details,namely ethylene-vinyl acetate copolymer(EVA),organosilicon,polyolefin elastomer(POE),and emerging light-conversion co-extruded integrated film(EPE) materials. The physical properties,advantages,disadvantages,and application scenarios of mainstream encapsulation materials were deeply discussed. The mainstream process routes,advantages,and technical bottlenecks of three kinds of busbar-free(0 BB) encapsulation technologies,such as SWCT,dispensing,and welding-dispensing were compared,and the development status of encapsulation films adapted to 0 BB technology(skin film+conventional adhesive film,integrated film,etc.) was elucidated. 0 BB technology could reduce silver paste consumption,decrease shading area,improve module power,and enhance anti-microcrack capability by eliminating busbars. It was one of the core directions for high-efficiency cell encapsulation,but still faced challenges such as high process complexity,rising material costs,and insufficient film adaptability. Future encapsulation technology development would focus on material formulation optimization,0 BB process simplification,and cost control,promoting the deep integration of encapsulation technology with high-efficiency cells,and providing support for cost reduction and efficiency improvement in the photovoltaic industry.
[1]文仁光，储赛霞.脱醇型光伏组件密封胶的制备与性能研究[J].中国胶粘剂，2023,32(5):59-62,68.
[2] Verlinden P,Young D L,Xiong G,et al. Photovoltaic device innovation for a solar future[J].Device,2023,1(1):100013.
[3] Wang L,Tang Y,Zhang S,et al.Energy yield analysis of different bifacial PV(photovoltaic)technologies:TOPCon,HJT,PERC in Hainan[J]. Solar Energy,2022,238:258-263.
[4]霍月明.光伏组件封装技术研究[J].现代商贸工业，2015,36(18):224-225.
[5] Kim D,Lim H,Kim S H,et al. Recent developments of polymer-based encapsulants and backsheets for stable and high-performance silicon photovoltaic modules:Materials nanoarchitectonics and mechanisms[J].Journal of Materials Chemistry A,2024,12(13):7452-7469.
[6]雷楠，左燕，郭永刚，等.太阳电池无主栅互联封装技术研究进展[J].电源技术，2024,48(4):2012-2021.
[7]黄纬，陈喜平，李俊斐，等.无主栅太阳电池栅线的设计优化[J].太阳能，2019(3):59-62.
[8] Gaddam S K,Pothu R,Boddula R. Advanced polymer encapsulates for photovoltaic devices-A review[J].Journal of Materiomics,2021,7(5):920-928.
[9]李海波，戚嵘嵘，冯杰，等.太阳能电池用EVA封装胶膜的性能研究[J].中国胶粘剂，2016,25(4):22-25,62.
[10] Czanderna A W,Pern F J. Encapsulation of PV modules using ethylene vinyl acetate copolymer as a pottant:A critical review[J]. Solar Energy Materials and Solar Cells,1996,43(2):101-181.
[11] Green M A. Commercial progress and challenges for photovoltaics[J].Nature Energy,2016,1(1):1-4.
[12] Baiamonte M,Therias S,Gardette J L,et al. Encapsulant polymer blend films for bifacial heterojunction photovoltaic modules:Formulation,characterization and durability[J].Polymer Degradation and Stability,2021,193:109716.
[13] Oliveira D C C M,Cardoso D A S A,Viana M M,et al.The causes and effects of degradation of encapsulant ethylene vinyl acetate copolymer(EVA)in crystalline silicon photovoltaic modules:A review[J]. Renewable and Sustainable Energy Reviews,2018,81:2299-2317.
[14] Schnatmann A K, Schoden F, Schwenzfeier H E.Sustainable PV module design-review of state-of-the-art encapsulation methods[J]. Sustainability,2022,14(16):9971.
[15]周玉波，张俊林，张发饶.超快固化高性能太阳能电池用EVA封装膜的研制[J].中国胶粘剂，2012,21(2):35-38.
[16] Liu Z P,Liu Z,Luo P,et al.Preparation of hindered aminegrafted EVA and its effect on the photoaging behavior of EVA photovoltaic encapsulation films[J]. Polymer,2026,342:129315.
[17] Deng S,Zhang Z,Ju C,et al.Research on hot spot risk for high-efficiency solar module[J]. Energy Procedia,2017,130:77-86.
[18] Luo W,Khoo Y S,Hacke P,et al. Potential-induced degradation in photovoltaic modules:A critical review[J].Energy&Environmental Science,2017,10(1):43-68.
[19] Beaucarne G,Dupont A,Puthenmadom D,et al. Material study of photovoltaic modules with silicone encapsulation after long-term outdoor exposure[J].Solar Energy Materials and Solar Cells,2021,230:111298.
[20] Dintcheva N T,Morici E,Colletti C.Encapsulant materials and their adoption in photovoltaic modules:A brief review[J].Sustainability,2023,15(12):9453.
[21] Wang T,Wan Z,Min X,et al. Synergistic defect healing and device encapsulation via structure regulation by silicone polymer enables durable inverted perovskite photovoltaics with high efficiency[J]. Advanced Energy Materials,2024,14(5):2302552.
[22] López-Escalante M,Caballero L J,Martín F,et al.Polyolefin as PID-resistant encapsulant material in PV modules[J].Solar Energy Materials and Solar Cells,2016,144:691-699.
[23] Habersberger B M,Hacke P,Madenjian L S.Evaluation of the PID-s susceptibility of modules encapsulated in materials of varying resistivity[J].IEEE,2018:3807-3809.
[24] Baiamonte M,Colletti C,Ragonesi A,et al.Durability and performance of encapsulant films for bifacial heterojunction photovoltaic modules[J].Polymers,2022,14(5):1052.
[25]洪利杰，程斌君，张祥洲，等.太阳能电池组件用POE封装胶膜的研制[J].中国胶粘剂，2017,26(5):30-33.
[26]吴建东，严迎燕，张艳林，等.层压和储存条件对太阳能电池用聚烯烃封装胶膜透光率的影响研究[J].中国胶粘剂，2021,30(7):34-37,43.
[27] Yang Z,Li Y,Wu J,et al. Novel EPE co-extruded encapsulating films with UV down-conversion power gain effect for highly efficient solar cells[J]. Solar Energy Materials and Solar Cells,2023,257:112373.
[28] Zhang S,Chen X,Xu J,et al. Advanced industrial highefficiency silicon PV module design[J]. Photovoltaic Solar Energy:From Fundamentals to Applications,2024,2:333-355.
[29]唐峰.稀土有机配合物及其太阳能电池光转EVA复合材料的制备与光学性能研究[D].上海：上海师范大学，2012.
[30]张治，卢刚，何凤琴，等.无主栅太阳电池多线串接技术研究[J].太阳能，2018(7):42-47.
[31] Liu Y,Peters I M,Ding K,et al.Silver reduction through direct wire bonding for silicon heterojunction solar cells[J].Solar Energy Materials and Solar Cells,2025,282:113412.
[32] Xie Z,Lu H,Yang G,et al. 27%-efficiency silicon heterojunction cell with 98.6%cell-to-module ratio driving new momentum towards the 29.4%limit[J].Nature Communications,2025,16(1):9421.
基本信息:
DOI：10.13416/j.ca.2026.09.008
中图分类号:TQ437;TM914.4
引用信息:
[1]叶安城,李伟京,石洪涛,等.高效光伏电池封装材料与0BB封装技术研究进展[J].中国胶粘剂,2026,35(09):1-9+48.DOI:10.13416/j.ca.2026.09.008.
Citation Information:
[1]Ye Ancheng,Li Weijing,Shi Hongtao ,et al.Research progress on encapsulation materials and 0BB encapsulation technology for high-efficiency photovoltaic cells[J].中国胶粘剂,2026,35(09):1-9+48.DOI:10.13416/j.ca.2026.09.008.
基金信息:
浙江省“尖兵领雁+X”研发攻关计划“新型高效光伏电池多样化封装技术路线攻关及产业化应用研究”（2025C01180）
2026-09-30
2026-09-30