Enhancing glass anode performance for lithium‐ion batteries via crystallization

• DOI: 10.1111/jace.18165
• Publication Date: 2021-10-11T15:29:44Z
• Authors: Shibin Qi; Xiangyu Li; Zhenjing Jiang; Jiayan Zhang; Zhitao Shan; Yanfei Zhang
• Keywords: Thermal Stability

Abstract We investigate the thermal and electrochemical properties of xFe 2 O 3 ‐(100‐x) P 5 glass (x = 20, 30, 40, 50 mol%) 50Fe ‐50P (50FeP) glass‐ceramics as anodes for lithium‐ion batteries (LiBs). The results show that both transition temperature energy bandgap monotonically decrease with increasing Fe while a critical content 30 mol% is found to give highest stability, largest capacity at 1 Ag ‐1 , lowest charge‐transfer resistance before cycling. Moreover, (P 7 ) crystals formed during heat treatment in 50FeP effectively enhances properties. optimum condition 1033 K 4 h, is, K‐4 h sample enables reversible 237 mA g −1 end 1000 cycles which more than 1.5 times higher glass‐based anode. These findings suggest ‐P hold significant potential effective development new types future advanced LiBs.