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Synthesis of Hollow SnO 2 /SnS 2 Hybrids and their Application in Sodium‐Ion Batteries
Author(s) -
Wang Ke,
Huang Ying,
Qin Xiulan,
Wang Mingyue,
Sun Xu,
Yu Meng
Publication year - 2017
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201700309
Subject(s) - anode , electrochemistry , materials science , hydrothermal circulation , tin , sodium , electrode , ion , chemical engineering , nanotechnology , metallurgy , chemistry , organic chemistry , engineering
Alloying‐type Sn material has been considered as an excellent anode material for sodium‐ion batteries (SIBs). However, the limitation of capacity is still a challenge that remains to be solved. In this approach, we introduce a facile two‐step hydrothermal route to prepare hollow SnO 2 /SnS 2 hybrids and investigate their electrochemical performances as anodes in SIBs for the first time. Benefiting from their structural features, the hollow SnO 2 /SnS 2 hybrids exhibit a high reversible sodium storage capacity of about 485.64 mA h g −1 at 300 mA g −1 after 100 cycles with a capacity retention of 78.7 %, which is much higher than 25.9 % for bare SnO 2 hollow spheres and 28.5 % for bare SnS 2 nanosheets. Taking into consideration the outstanding performance and the special structural design, this work could provide a potential strategy to improve the electrochemical performances of tin‐based electrodes, as well as that of other anodes in SIBs.