Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5149937 | Journal of Power Sources | 2016 | 7 Pages |
Abstract
Anatase TiO2 nanopores are successfully prepared through alternating voltage induced electrochemical synthesis (AVIES) approach at room temperature. When utilizing TiO2 nanoporous materials as an anode for Na-ion battery, it delivers a reversible charge-discharge capacity of around 180 mA h gâ1 at 0.2 C (67 mA gâ1) after 200 cycles. Meanwhile, it also shows a good cycling performance and a high rate capability due to unique nanoporous structures, which promote electrolyte wetting and facilitate diffusion of Na+. Additionally, cyclic voltammetry demonstrate that the sodium-ion storage of as-prepared TiO2 is a cooperative control behavior of diffusion and capacitance, but mainly controlled by capacitive behavior, which further facilitates a rapid (de-)intercalation of Na+.
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Authors
Simin Li, Lingling Xie, Hongshuai Hou, Hanxiao Liao, Zhaodong Huang, Xiaoqing Qiu, Xiaobo Ji,