Utilization of Coal Fly-Ash derived Silicon (Si) as Capacity Enhancer of Li-Ion Batteries Anode MaterialCornelius Satria Yudha, Erica Puspita Sari, Dona Kurniawati Dewi, Tika Paramitha and Windhu Griyasti SuciE3S Web Conf., 481 (2024) 01007DOI: https://doi.org/10.1051/e3sconf/202448101007