碳基柔性电极用于电化学钾储存器件

Carbon-based flexible electrodes for electrochemical potassium storage

  • 摘要: 随着柔性可穿戴电子市场的快速发展,柔性电化学储能技术取得了令人瞩目的进步。尽管如此,开发低价、安全、高性能的柔性电极依然面临着挑战。在过去的几年里,钾基电化学能量储存体系凭借钾资源的成本优势和易于获得性,而引起广泛的关注。炭材料由于其轻质、无毒、丰富等优点而被用作柔性能量储存器件的电极材料或基质材料。本文总结了炭材料(如,碳纳米纤维、碳纳米管、石墨烯)作为柔性电化学钾储存器件(包括钾离子电池、钾离子混合电容、钾-硫/硒电池)的研究进展。同时,概述了碳基柔性电极的合成策略以及已取得的电化学性能。最后,讨论了该领域未来发展面临的挑战并给出了展望。

     

    Abstract: With the rapid growth of the flexible and wearable electronics market, there have been big advances in flexible electrochemical energy storage technologies. Developing flexible electrodes with a low cost, superior safety, and high performance remains a great challenge. In recent years, potassium-based electrochemical energy storage devices have received much attention by virtue of their cost competitiveness and the availability of potassium resources. Carbon materials have been widely used as electrode materials or substrates for flexible energy storage devices due to their excellent properties, such as low weight, non-toxicity and abundance. Here, we summarize the recent advances in carbon materials (e.g. carbon nanofibers, carbon nanotubes, and graphene) for use in flexible electrochemical potassium storage devices, including potassium-ion batteries, potassium-ion hybrid capacitors, and K-S/Se batteries. Strategies for the synthesis of carbon-based flexible electrodes and their reported electrochemical performance are outlined. Finally, the challenges of future developments in this field are discussed.

     

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