Energy & Fuels, Год журнала: 2024, Номер unknown

Опубликована: Дек. 29, 2024

Polymetallic sulfides have attracted considerable attention as anode materials for lithium-ion batteries (LIBs) and sodium-ion batterw1ies (SIBs) due to their excellent cycling stability electrochemical performance. However, in the field of materials, despite high theoretical capacity good conductivity these transition metal sulfides, several key challenges remain practical applications, such structural damage caused by volume expansion during charge/discharge cycles, slow insertion/extraction kinetics lithium sodium ions, insufficient interfacial stability. In this study, we designed an Sb/Fe2S3 material composite combining it with acetylene black via a ball-milling process. The anchored on (Sb/Fe2S3–C) not only improved material's but also provided stable framework structure composite, which buffers enhances process further facilitated uniform distribution black, enhancing efficiency electron ion transport. results showed that LIBs, reversible capacities Sb/Fe2S3–C reached 1170.6, 1007.1, 963.6, 877.2, 783.2, 656.3, 511.2, 428.3, 345.3 mA h g–1 at current densities 0.1, 0.2, 0.5, 1, 2, 4, 6, 8, 10 A g–1, respectively. As SIBs, remained storage 501.6 after 80 cycles 1 g–1. This study provides more economical sustainable solution achieving high-performance LIBs/SIBs large-scale energy applications.

Язык: Английский