Open AccessMoS 2 ‐Coupled Carbon Nanosheets Encapsulated on Sodium Titanate Nanowires as Super‐Durable Anode Material for Sodium‐Ion Batteries
Author(s) -
Wang Shitong,
Cao Fangjun,
Li Yutong,
Zhang Zhongtai,
Zhou Daming,
Yang Yong,
Tang Zilong
Publication year - 2019
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201900028
Subject(s) - anode , materials science , energy storage , nanowire , titanate , nanotechnology , carbon fibers , chemical engineering , substrate (aquarium) , electrode , composite material , chemistry , ceramic , power (physics) , physics , oceanography , quantum mechanics , geology , composite number , engineering
There is an ever‐increasing demand for rechargeable batteries with fast charging, long cycling, high safety, and low cost in new energy storage systems. Herein, a heterogeneous architecture composed of MoS 2 ‐coupled carbon nanosheets encapsulated on sodium titanate nanowires is developed and demonstrated as an advanced anode for sodium‐ion batteries (SIBs). Owing to the synergistic effects of ultrastable substrate of 1D sodium titanate (NTO) nanowires, high‐capacity promoter of 2D MoS 2 nanosheets as well as the 2D conductive carbon matrix, the resulting 1D/2D–2D hybrid demonstrates excellent high‐rate capacity and super‐durable cyclability, delivering a stable capacity of up to 425.5 mAh g −1 at 200 mA g −1 . Even at an ultrafast charging/discharging process within 80 s, the capacity can be maintained at 201 mAh g −1 after 16 000 cycles with only 0.0012% capacity loss per cycle, one of the best high‐rate capacities and cyclabilities for NTO‐based hybrid composites. The present work highlights the designing protocol of hierarchical nanoarchitectures with stable substrate and high‐capacity electrodes for next‐generation energy storage applications.