Tailored medium-entropy Si alloy anodes with multi-element Fe-site substitution for high-performance Li-ion batteries - Byeong Guk Kim; Jung-Hyeok Park; Jihyeon Ryu; Kyungmin Do; Dong Gyun Hong; Tae-Hyun Kwon; Oh Sung Kwon; Insung Jang; Jaeik Hyun; Geon-Hyoung An; Youngoh Kim; Geon-Woong Lee; et al. (Chemical Engineering Journal, 2026)