2015
DOI: 10.1039/c4nr04903a
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Abstract: 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). The superior performance is because of the structural features of the amorphous SnO2 nanomembranes. The nanoscale thickness provides considerably reduced diffusion paths for Li(+). The amorphous structure can accommodate the strain of lithiation/delithiation, especially during the initial lit… Show more

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Cited by 66 publications
(42 citation statements)
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“…The voltage profiles of hybrid (Figure 3b) exhibited typical electrochemical features of CoSn (here broader voltage range of 5 mV to 3 V was used for the complete exploration of stability of electrode developed with unique composition but the redox reaction is in the limits of anode cut of voltage) [12,42], with almost no change over 100 cycles. Further, absence of large plateaus confirms the faster transfer of lithium inside the electrode through porous carbon and grain boundaries as proved by HRTEM studies (Figure 2c-e) [43,44], in contrast to the electrode that shows large irreversible storage of lithium in the first cycle and in successive cycles required large time to diffuse, resulting poor CR t ( Figure S17). [45] Furthermore, it is point of ponder that faster diffusion of Li + is necessary for high rate capability and the linear profile is indication of faster diffusion through shorter distance (below 10 nm) [46].…”
Section: Resultsmentioning
confidence: 62%
“…The voltage profiles of hybrid (Figure 3b) exhibited typical electrochemical features of CoSn (here broader voltage range of 5 mV to 3 V was used for the complete exploration of stability of electrode developed with unique composition but the redox reaction is in the limits of anode cut of voltage) [12,42], with almost no change over 100 cycles. Further, absence of large plateaus confirms the faster transfer of lithium inside the electrode through porous carbon and grain boundaries as proved by HRTEM studies (Figure 2c-e) [43,44], in contrast to the electrode that shows large irreversible storage of lithium in the first cycle and in successive cycles required large time to diffuse, resulting poor CR t ( Figure S17). [45] Furthermore, it is point of ponder that faster diffusion of Li + is necessary for high rate capability and the linear profile is indication of faster diffusion through shorter distance (below 10 nm) [46].…”
Section: Resultsmentioning
confidence: 62%
“…These metal oxides are known as n-type transparent conducting oxides (TCOs) and have been utilized in the gas sensing [3], electrodes for the Li ion batteries [4], dyesensitized solar cells [5] and medicine applications [6]. Most of these TCOs have large energy band gap (> 3 eV), which lies in the ultra violet (UV) range of the solar spectrum.…”
Section: Introductionmentioning
confidence: 99%
“…[13][14][15][16]18,24,25,67] Furthermore, rolledup nanostructured materials can be prepared by only employing standard photolithographic techniques and industrially compat ible physical or chemical deposition techniques. [13][14][15][16]18,24,25,67] Furthermore, rolledup nanostructured materials can be prepared by only employing standard photolithographic techniques and industrially compat ible physical or chemical deposition techniques.…”
Section: Strain-engineered Rolled-up Structures For Advanced Li-ion Bmentioning
confidence: 99%
“…[8,9] In recent years, with the rapid development of mate rial science and nanotechnology, energy storage devices with enhanced performance have been realized, [2,[6][7][8][9][10] and they have emerged as the dominant power sources for portable electronics in modern society. [13][14][15][16][17][18][19][20][21][22][23][24][25] In particular, nanostructures prepared by rolledup nanotechnology offer controllable surface area, short charge diffusion distance, and large freedom for volume change during charge/discharge cycles. [11,12] Noticeably, nanomateirals derived from rolledup nanotechnology have attracted world wide interest recently, and remarkable progress has been made when introducing this technology into the design of energy storage devices.…”
mentioning
confidence: 99%