2D SnO2 nanorod networks templated by garlic skins for lithium ion batteries |
| |
| Affiliation: | 1. School of Chemistry Science and Engineering, Yunnan University, Kunming 650091, Yunnan, China;2. School of Chemistry and Chemical Engineering, Qujing Normal University, Qujing 655000, Yunnan, China;1. School of Environment and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China;2. School of Materials, and Key Laboratory of Hollow Fiber Membrane Materials and Membrane Process, Tianjin Polytechnic University, Tianjin 300387, China;1. Ingsman Energy and Fuel Cell Research Organization Pvt. Ltd, Chennai, India;2. CSIR – Central Electrochemical Research Institute – Madras Unit, CSIR Campus, Taramani, Chennai 600 113, India |
| |
| Abstract: | SnO2 nanorods with 2D network structure prepared via an effective method of using the skins of garlic bulbs as templates are examined as anode materials for Li-ion battery. The samples are composed of SnO2 nanorods with length of ca. 80 nm and possess high BET surface area of 163.25 m2 g−1. The synthesized SnO2 electrode shows a high specific capacity (ca. 620 mAh g−1), an excellent cycling stability and a good rate capability but low initial coulombic efficiency. The nanorods characteristics of SnO2 ensure the fast Li-ion diffusion in the electrode. The loose network structure provides the electrode with a sufficient void space, which sufficiently alleviates the mechanical stress caused by volume change, and thus avoids the electrode to pulverize in the charge–discharge process. Therefore, the obtained SnO2 electrode shows a good cyclic stability and a high rate performance. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
