High-rate amorphous SnO2 nanomembrane anodes for Li-ion batteries with a long cycling life

With increase in demand for high power lithium ion batteries, significant efforts have been devoted towards improving their cycling life, reversible capacity and rate capability

Xianghong Liu

2014

Scholarcy highlights

  • With increase in demand for high power lithium ion batteries, significant efforts have been devoted towards improving their cycling life, reversible capacity and rate capability
  • Nanomembranes have a unique mechanical feature, which enables them to be deformed into various rolled-up, wavy and helical architectures. This special mechanical feature is highly advantageous for their applications in LIBs and especially expected to buffer the strain of lithiation/delithiation against pulverization
  • SnO2 nanomembranes have been investigated as anodes for LIBs, which exhibit a long cycling life of 1000 cycles
  • The elemental composition and uniformity were first analyzed by energy-dispersive X-ray
  • The comparison of the electrochemical performance of the SnO2 nanomembrane anode with other SnO2 based anodes is summarized in Table S1.† The long cycling life of 1000 cycles with the reversible capacity of 854 mA h g−1 at 1600 mA g−1 and high rate capability up to 40 A g−1 is significantly improved than most of the pure SnO2 anodes, and almost comparable with some ultra-small sized SnO2/carbon composite anodes
  • The amorphous SnO2 nanomembranes as anodes for lithium ion batteries demonstrate a long cycling life of 1000 cycles at 1600 mA g−1 with a high reversible capacity of 854 mA h g−1 and high rate capability up to 40 A g−1

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