期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷 29, 期 2, 页码 1232-1237出版社
SPRINGER
DOI: 10.1007/s10854-017-8025-9
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资金
- National Natural Science Foundation of China [50771082, 60776822]
- Natural Science Basic Research Plan in Shaanxi Province of China [2017JQ5116]
Herein, uniform triple-shelled La2O3 hollow spheres were synthesized for the first time by a facile onepot hydrothermal method capable of controlling the number of internal thin-shells, which can be achieved by controlling the calcination temperature. Used as anodes for Li-ion batteries, the triple-shelled La2O3 hollow spheres show excellent cycling performance, good rate capacity, and high specific capacity. A superior capacity, up to 108 mAh g(-1) with minimal irreversible capacity after 100 cycles is achieved at a current rate of 100 mA g(-)1(.) After the highrate charge-discharge cycling, a specific discharge capacity as high as 190.1 mAh g(-1) can be restored when the current density is reduced to 50 mA g(-1) ( theoretical specific capacity = 246.8 mAh g(-1)).
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