Journal
NANO LETTERS
Volume 17, Issue 6, Pages 3959-3964Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.7b01674
Keywords
Lithium-ion battery; silicon anode; tin dioxide; volumetric capacity; solid-electrolyte interphase
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Funding
- National Key Project on Basic Research [2015CB251104]
- Natural Science Foundation of China [U1664256]
- China-US Electric Vehicle Project [S2016G9004]
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A novel-design of hollow structured SnO2@Si nanospheres was presented, which not Only demonstrates high volumetric capacity as anode of LIBs, but also prevents aggregation of Sn and confines :solid electrolyte interphase thickening. An impressive volumetric-specific capacity of 1030 mAh cm(-3) was maintained after 500 cycles. The electrochemical impedance spectroscopy and differential scanning calorimetry indicated that solid-electrolyte interphase can be confined in pores of as-prepared hollow structured SnO2@Si.
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