Reliable Lego®-style assembled stretchable photovoltaic module for 3-dimensional curved surface application

Min Ju Yun, Yeon Hyang Sim, Dong Yoon Lee and Seung I. Cha

Applied Energy, 2022, vol. 323, issue C, No S0306261922008716

Abstract: To extend the applications of photovoltaics in the urban environment, the one-size-fits-all strategies based on watt-per-cost concepts should shift toward customized energy-yield-per-watt strategies to meet various requirements for new applications such as vehicle-integrated photovoltaics (VIPVs) and building-integrated photovoltaics (BIPVs). From this viewpoint, a customizable lightweight photovoltaic module with high performance and reliability and that can be applied to curved surfaces has attracted much attention. To satisfy the requirements for such devices, we have introduced a Lego®-style assembled module that can be assembled on curved surface using glass-free encapsulated solar-cell units and stretchable interconnection units similar to those of Lego® block construction. The developed modules exhibit 20% energy conversion efficiency and high reliability, including the ability to endure a compressive force of 5000 N and to maintain photovoltaic performance in an environment at 85 ℃ and 85% relative humidity for 500 h. The proposed module concept is promising for satisfying the requirements for next-generation photovoltaic applications, including BIPVs and VIPVs, because of the modules’ free-design possibilities, which make them compatible with three-dimensional curved surfaces, and good performance with high reliability.

Keywords: Stretchable solar cell module; Lego-style; Durability; VIPV; BIPV; Fitting on curved surface (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1016/j.apenergy.2022.119559

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