Journal
ADVANCED MATERIALS
Volume 29, Issue 24, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201700989
Keywords
anode materials; hollow spheres; rate performance; sodium-ion batteries; ultrathin nanosheets
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Funding
- Australian Research Council (ARC) [DP140104062, DP160104866, DP170104464, DE150101234]
- Australian Research Council [DE150101234] Funding Source: Australian Research Council
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Uniform Na2Ti3O7 hollow spheres assembled from N-doped carbon-coated ultrathin nanosheets are synthesized. A unique multilayer structure of nanosheets is presumed to significantly reduce energy consumption during the diffusion process of sodium ions, while the carbon-coated structure can increase the overall conductivity. The as-prepared sample used as an anode in sodium-ion batteries exhibits the best rate performance ever reported for Na2Ti3O7, delivering more than 60 mAh g(-1) after 1000 continuous cycles at the high rate of 50 C, which was achieved due to its unique structure.
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