Department of Energy Engineering, Hanyang University , Seoul 133-791, South Korea.
Nano Lett. 2014 Mar 12;14(3):1620-6. doi: 10.1021/nl500077v. Epub 2014 Feb 18.
While much research effort has been devoted to the development of advanced lithium-ion batteries for renewal energy storage applications, the sodium-ion battery is also of considerable interest because sodium is one of the most abundant elements in the Earth's crust. In this work, we report a sodium-ion battery based on a carbon-coated Fe3O4 anode, Na[Ni0.25Fe0.5Mn0.25]O2 layered cathode, and NaClO4 in fluoroethylene carbonate and ethyl methanesulfonate electrolyte. This unique battery system combines an intercalation cathode and a conversion anode, resulting in high capacity, high rate capability, thermal stability, and much improved cycle life. This performance suggests that our sodium-ion system is potentially promising power sources for promoting the substantial use of low-cost energy storage systems in the near future.
虽然在开发用于可再生能源存储应用的先进锂离子电池方面已经投入了大量研究工作，但钠离子电池也引起了相当大的关注，因为钠是地壳中含量最丰富的元素之一。在这项工作中，我们报告了一种基于碳包覆 Fe3O4 阳极、Na[Ni0.25Fe0.5Mn0.25]O2 层状阴极和 NaClO4 在氟代碳酸乙烯酯和乙基甲基磺酸盐电解液的钠离子电池。这个独特的电池系统结合了嵌入阴极和转化阳极，具有高容量、高倍率性能、热稳定性和显著改善的循环寿命。这种性能表明，我们的钠离子系统有可能成为有前途的电源，以促进在不久的将来大规模使用低成本储能系统。
