Core-shell structured NaTi2(PO4)3@polyaniline as an efficient electrode material for electrochemical energy storage
| Autor: | Chen Li, Yuqiao Fu, Xinming Wu, Long Zhang, Haiyan Yan, Xiuxiu Xue |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Electrode material
Materials science Sodium Diffusion chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electrochemical energy conversion 0104 chemical sciences Anode chemistry.chemical_compound Chemical engineering chemistry Polyaniline General Materials Science 0210 nano-technology Layer (electronics) Electrochemical energy storage |
| Zdroj: | Solid State Ionics. 336:95-101 |
| ISSN: | 0167-2738 |
| DOI: | 10.1016/j.ssi.2019.03.024 |
| Popis: | Sodium-ion batteries are widely suggested as next-generation electrochemical energy storage devices for various applications due to the abundance of sodium resource and environmental friendliness. Advanced anode materials with outstanding Na+ storage performances are crucial for sodium storage. Herein, core-shell NaTi2(PO4)3@polyaniline is synthesized by using a simple sol-gel route and a self-assembly process. In this material, the NaTi2(PO4)3 crystals are uniformly coated by the polyaniline layer. Such polyaniline is benefit to enhance the electronic conductivity and promote the Na+ diffusion of NaTi2(PO4)3 anode. The NaTi2(PO4)3@polyaniline presents the reversible capacities of 128.8 and 115.6 mAh g−1 at 0.1 and 5 C, and it also presents a high capacity retention of 96.9% after 200 cycles at 10 C. The results demonstrate that this new approach can be used to improve other anodes for electrochemical energy conversion and storage. |
| Databáze: | OpenAIRE |
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