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|Title:||Bioinspired carbon/SnO₂ composite anodes prepared from a photonic hierarchical structure for lithium batteries|
|Other Titles:||Bioinspired carbon/SnO(2) composite anodes prepared from a photonic hierarchical structure for lithium batteries|
|Citation:||ACS Applied Materials and Interfaces, 2015; 7(21):11146-11154|
|Publisher:||American Chemical Society|
|Yao Li, Qing Meng, Jun Ma, Chengling Zhu, Jingru Cui, Zhixin Chen, Zaiping Guo, Tao Zhang, Shenmin Zhu and Di Zhang|
|Abstract:||A carbon/SnO2 composite (C-SnO2) with hierarchical photonic structure was fabricated from the templates of butterfly wings. We have investigated for the first time its application as the anode material for lithium-ion batteries. It was demonstrated to have high reversible capacities, good cycling stability, and excellent high-rate discharge performance, as shown by a capacitance of ∼572 mAh g(-1) after 100 cycles, 4.18 times that of commercial SnO2 powder (137 mAh g(-1)); a far better recovery capability of 94.3% was observed after a step-increase and sudden-recovery current. An obvious synergistic effect was found between the porous, hierarchically photonic microstructure and the presence of carbon; the synergy guarantees an effective flow of electrolyte and a short diffusion length of lithium ions, provides considerable buffering room, and prevents aggregation of SnO2 particles in the discharge/charge processes. This nature-inspired strategy points out a new direction for the fabrication of alternative anode materials.|
|Keywords:||Bioinspired material; 3D photonic structure; hierarchical; composite; anode material; lithium ion battery|
|Rights:||© 2015 American Chemical Society|
|Appears in Collections:||Physics publications|
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