Interfacial‐Catalysis‐Enabled Layered and Inorganic‐Rich SEI on Hard Carbon Anodes in Ester Electrolytes for Sodium‐Ion Batteries (Adv. Mater. 29/2023)

Abstract

Sodium‐Ion Batteries In article number 2300002, Yu Li, Chuan Wu, Ying Bai, and co‐workers develop an efficient strategy to reconstruct the surface functionality of hard carbons in situ, which can controllably catalyze preferential salt decomposition to form an inorganic‐rich and layered solid electrolyte interphase (SEI). The structurally stable and ion‐conductive SEI enables advanced hard carbon anodes with an ultrahigh initial Coulombic efficiency and long cycling life for sodium‐ion batteries.

Reduced Graphene Oxide Modulated FeSe/C Anode Materials for High‐Stable and Long‐Life Potassium‐Ion Batteries

“…Therefore, we calculated the adsorption energy of these groups to potassium salt and solvent molecules. As depicted in Figure 6a, C=O exhibits stronger adsorption energies toward FSI − , while C−O and COOH groups have larger adsorption energies against EC and DEC [51] . The specific adsorption behavior of C−O and COOH for solvent results in the preferential accumulation of EC and DEC in the EDL region around FeSe/C@rGO.…”

Hard carbon for sodium-ion batteries: progress, strategies and future perspective

“…12b) and XPS measurements. 137 Accordingly, the interfacial properties of the HC anode surface were optimized, and its Na storage performance was comprehensively improved (Fig. 12c and d).…”

Tea‐Derived Sustainable Materials

“…[35][36][37] To elucidate the correlation between the Na + ion storage performance and the SEI properties of TS-1400-HCl anode, the composition, and structure of the SEI layer were carefully investigated. [38][39][40] As shown in Figure 4a,c, the C1s peaks indicate the existence of C─C and C═O groups, and the O1s peaks display C─O and C═O groups in the pristine electrode. After cycling, C1s peaks in the TS-1400-HCl electrode are dominated by C─C, C─O, C═O, and C─F groups.…”