Bioinspired carbon/SnO₂ composite anodes prepared from a photonic hierarchical structure for lithium batteries
Date
2015
Authors
Li, Y.
Meng, Q.
Ma, J.
Zhu, C.
Cui, J.
Chen, Z.
Guo, Z.
Zhang, T.
Zhu, S.
Zhang, D.
Editors
Advisors
Journal Title
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Volume Title
Type:
Journal article
Citation
ACS applied materials & interfaces, 2015; 7(21):11146-11154
Statement of Responsibility
Yao Li, Qing Meng, Jun Ma, Chengling Zhu, Jingru Cui, Zhixin Chen, Zaiping Guo, Tao Zhang, Shenmin Zhu and Di Zhang
Conference Name
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.
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Data source: Supporting information, http://pubs.acs.org/doi/suppl/10.1021/acsami.5b02774
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© 2015 American Chemical Society