2016
DOI: 10.1021/acsami.6b09918
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Synthesis of Double-Shell SnO2@C Hollow Nanospheres as Sulfur/Sulfide Cages for Lithium–Sulfur Batteries

Abstract: Double-shell SnO@C hollow nanospheres were synthesized by a template method, and then the sulfur was loaded to form a cathode material of S/SnO@C composite. In Li-S batteries, it delivered a high initial specific capacity of 1473.1 mAh/g at a current density of 200 mA/g, and the capacity retention was even up to 95.7% over 100 cycles at 3200 mA/g, i.e., a capacity fade rate of only 0.043% per cycle. These good electrochemical performances should be attributed to the SnO@C hollow nanospheres. They can enhance t… Show more

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Cited by 87 publications
(50 citation statements)
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“…Correspondingly, struggling pursuit of a more competitive candidate becomes an urgent task. For instance, many kinds of carbon matrix have been deployed to hold up the sulfur, like hollow carbon spheres (HCSs) [10,11] and hollow nanofibers or nanotubes, [12][13][14] graphene oxide sheets, [15,16] and 3D hierarchical porous carbon. [5] Furthermore, sulfur is abundant on earth, nontoxic, and environmentally friendly.…”
Section: Sulfiphilic Few-layered Mose 2 Nanoflakes Decorated Rgo As Amentioning
confidence: 99%
“…Correspondingly, struggling pursuit of a more competitive candidate becomes an urgent task. For instance, many kinds of carbon matrix have been deployed to hold up the sulfur, like hollow carbon spheres (HCSs) [10,11] and hollow nanofibers or nanotubes, [12][13][14] graphene oxide sheets, [15,16] and 3D hierarchical porous carbon. [5] Furthermore, sulfur is abundant on earth, nontoxic, and environmentally friendly.…”
Section: Sulfiphilic Few-layered Mose 2 Nanoflakes Decorated Rgo As Amentioning
confidence: 99%
“…c) Cycling performance of sulfur‐embedded hollow‐sphere materials. Reproduced with permission . Copyright 2016, The American Chemical Society.…”
Section: Porous Cathode Architectures For Li–s Batteriesmentioning
confidence: 76%
“…To further enhance the conductivity and thus enhance the performance, double-shell SnO 2 @C hollow nanospheres were designed to encapsulate sulfur by Cao. 98 The S/SnO 2 @C composite illustrated a high reversible capacity of 616 mA h/g at 3200 mA/g after 100 cycles.…”
Section: Sno Xmentioning
confidence: 96%
“…Finally, the nanostructures of metal compounds, i.e., surface area, pore size, pore volume, as well as particle size are also important factors which influence the performance of Li-S batteries. 19 Generally the metal compounds with smaller size, 69 high surface area and pore volume, 98 and abundant micro/mesopores 49,57 are beneficial to the cathode. Even though tremendous progress in improving the electrochemical performance and understanding the reaction mechanisms of Li-S batteries have been achieved, Li-S batteries are far from being ready for practical use at this stage.…”
Section: Summary and Perspectivementioning
confidence: 99%