ペロブスカイトモジュールにおける材料選択のためのマルチメトリクス枠組み：持続可能性、拡張性、ネットゼロ展開への示唆

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:LCAの限界を補完するBRRやCRM分類など、新規材料評価指標の適用例として参考になる。

🏢実務担当者:ペロブスカイトモジュールの材料調達やリサイクル設計において、環境負荷とコスト削減の具体的な可能性を検討できる。

🏛政策担当者:ペロブスカイト技術の資源供給リスクを認識し、リサイクル促進やクリティカルマテリアル政策の必要性を検討する材料となる。

Perovskite solar cells (PSCs) have emerged as promising next-generation photovoltaic technology for achieving net zero energy targets. However, sustainable and scalable material selection for PSC modules is difficult to fairly assess using a conventional life cycle assessment (LCA) due to the lack of reliable life cycle inventory (LCI) data. This paper considers three alternative metrics – it adopts the bound reserves ratio (BRR) and then introduces and applies critical raw mineral (CRM) classification and industry-based LCAs. These metrics are then used to evaluate material choices for two PSC module designs in deployment scenarios ranging from 2 TW to 220 TW. The CRM analysis showed that almost all materials used in the PSC as well as the enveloping materials are classified as critical, thus limiting its ability to distinguish between alternative material choices. Nevertheless, this classification highlights potential future supply risks and resource competition for PSCs and modules. The BRR confirms well known supply concerns, such as indium, silver and aluminium for the frame, while highlighting new concerns specific to perovskite technology, such as caesium, titanium and zirconium. It also shows that phosphorus, fluorine, lead and aluminium for contacts are sufficiently abundant. Industry-based LCAs showed which metals used by PSCs have higher environmental footprints to mine and refine, with silver used in many PSC designs significantly increasing primary energy demand, global warming potential, and blue water use of the module. Together, these metrics demonstrated the importance of incorporating recycling and material recovery in future perovskite module designs. An exploratory LCA showed that a module made with a recycled aluminium frame and recovered glass substrates can reduce environmental impacts such as global warming potential, energy demand and acidification by between 18% and 77% when compared to a module produced from fresh materials. Lastly, applying Wright's law with a learning rate of 10%, fresh-material module costs are projected to reach 36 V per m2 to 48 V per m2 at 2 TW installed capacity, comparable to current silicon PV modules. Incorporating recycling and recovered materials could further reduce costs by an estimated 10% to 13%.

• Zenodo https://zenodo.org/records/22751164first seen 2026-09-15 04:11:56 · last seen 2026-09-21 04:14:32