High-Capacity Lithium-Ion Battery Anodes Derived from Recycled Waste Photovoltaic panels
발표자
유은서 (홍익대학교)
연구책임자
엄태식 (홍익대학교)
초록
내용
Photovoltaic panels have been widely deployed as a clean energy source, contributing to greenhouse gas reduction. However, with many panels installed since the mid-2000s reaching the end of their 20-year lifespan, large volume of waste panels is expected, raising the need for efficient silicon recovery and value-added reuse. In this study, silicon recovered from end-of-life PV panels was refined using nitric acid-based chemical treatment and processed via high-energy ball milling for use as an anode material in lithium-ion batteries. A composite anode with 5 wt% PV panel-derived silicon mixed with graphite exhibited higher charge capacity than conventional graphite and maintained excellent cycling stability over 100 charge–discharge cycles. These results demonstrate the potential of recycled silicon from waste PV panels for lithium-ion battery anodes, contributing to resource circularity and the sustainability of next-generation energy storage technologies.