Synthesis of hierarchical Na2FeP2O7 spheres with high electrochemical performance via spray drying
| Autor: | Yan-Feng Chen, Cancan Qin, Liang Ni, Yue Feng Tang, Jiali Cao |
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| Rok vydání: | 2017 |
| Předmět: |
Battery (electricity)
Materials science General Chemical Engineering General Engineering General Physics and Astronomy Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Cathode Energy storage 0104 chemical sciences law.invention Anode law Spray drying General Materials Science Composite material 0210 nano-technology Capacity loss |
| Zdroj: | Ionics. 23:1783-1791 |
| ISSN: | 1862-0760 0947-7047 |
| DOI: | 10.1007/s11581-017-2020-2 |
| Popis: | Hierarchical Na2FeP2O7 spheres with nanoparticles were successfully fabricated by a facile spray drying method. A relatively low drying temperature was introduced in order to form a carbon layer on the surface. As a cathode material for sodium-ion batteries, it delivered a reversible capacity of 84.4 mAh g−1 at 0.1 C and showed excellent cycling and rate performance (64.7 mAh g−1 at 5 C). Furthermore, a full sodium battery was fabricated using SP-Na2FeP2O7 as the cathode and hard carbon as the anode, suffering almost no capacity loss after 400 cycles at 1 C. Due to its superior electrochemical property and the low materials cost, Na2FeP2O7 is becoming a promising cathode material for large-scale energy storage systems. |
| Databáze: | OpenAIRE |
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