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Developing an advanced module for back-contact solar cells

机译:开发用于背接触式太阳能电池的高级模块

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摘要

This paper proposes a novel concept for integrating ultrathin solar cells into modules. It is conceived as a method for fabricating solar panels starting from back-contact crystalline silicon solar cells. However, compared to the current state of the art in module manufacturing for back-contact solar cells, this novel concept aims at improvements in performance, reliability, and cost through the use of an alternative encapsulant, namely silicones as opposed to ethylene vinyl acetate, an alternative deposition technology, being wet coating as opposed to dry lamination; and alternative module-level metallization techniques, as opposed to cell-level tabbing-stringing or conductive foil interconnects. The process flow is proposed, and the materials and fabrication technologies are discussed. As the durability of the module, translated into the module's lifetime, is very important in the targeted application, namely solar cell modules, modeling and reliability testing results and considerations are presented to illustrate how the experimental development process may be guided by experience and theoretical derivations. Finally, feasibility is demonstrated in some first proofs of the concept, and an outlook is given pointing out the direction for further research.
机译:本文提出了一种将超薄太阳能电池集成到模块中的新颖概念。它被认为是一种从背接触晶体硅太阳能电池开始制造太阳能电池板的方法。但是,与背接触式太阳能电池模块制造的当前技术水平相比,该新颖概念旨在通过使用替代密封剂(即,硅酮而不是乙烯乙酸乙烯酯)来提高性能,可靠性和成本。另一种沉积技术是湿涂而不是干层压;以及与单元级的拉线或导电箔片互连相反的模块级金属化技术。提出了工艺流程,并讨论了材料和制造技术。由于模块的耐用性(转化为模块的使用寿命)在目标应用中非常重要,即太阳能电池模块,建模和可靠性测试结果以及提出的注意事项,以说明如何通过经验和理论推导来指导实验开发过程。最后,在该概念的一些初步证明中证明了可行性,并给出了展望,指出了进一步研究的方向。

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