Carbon Framework Endows High‐Stability Molybdenum Sulfide Nanosheet Anode for High‐Voltage and Fast‐Charging Alkali‐Ion Batteries

Abstract Molybdenum disulfide (i.e., MoS 2 ), while promising as an anode for alkali‐ion batteries, faces critical challenges including structural degradation and sluggish ion diffusion kinetics in practical applications. Herein, MoS 2 nanosheets anchored on a carbon framework (i.e., CF@MoS 2 ) through C─S bonds were successfully synthesized, in which the three‐dimensional carbon framework was synthesized using tellurium nanowires as the template. The C─S interfacial bonding ensures robust structural integration, while expanded interlayer spacing and bimodal pore channels synergistically enhance ion/electron transport. As a result, the as‐prepared CF@MoS 2 demonstrates unprecedented performance in both lithium‐ion batteries (LIBs) and sodium‐ion batteries (SIBs). A high lithium storage capacity of 1072 mAh g −1 with superior stability over 500 cycles at 1.0 A g −1 can be achieved, while a high‐rate capacity of 570 mAh g −1 at 5.0 A g −1 and excellent cycling stability over 500 cycles are also demonstrated in SIBs. The great features of CF@MoS 2 are further confirmed versus LiNi 1/3 Co 1/3 Mn 1/3 O 2 cathode in a high‐voltage and fast‐charging lithium‐ion full battery, where the excellent stability and long lifespan are both confirmed. This work probes a great potential for developing metal sulfide‐based electrodes in next‐generation fast‐charging energy storage systems.