Advances in pseudocapacitive and battery-like electrode materials for high performance supercapacitors,Journal of Materials Chemistry A

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Advances in pseudocapacitive and battery-like electrode materials for high performance supercapacitors
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2022-06-07 , DOI: 10.1039/d2ta02357a
Sumanta Sahoo ₁ , Rajesh Kumar ₂ , Ednan Joanni ₃ , Rajesh Kumar Singh ₄ , Jae-Jin Shim ₁

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Supercapacitors are energy storage devices with unique characteristics, and together with batteries have generated a significant research effort, with various types of electrode materials having been developed over the last few years. Current trends for this application have been gradually shifting towards pseudocapacitive/battery-like materials. When compared to electric double-layer capacitors, pseudocapacitive/battery-type materials have a decisive advantage, since they are usually able to deliver improved energy density. Furthermore, these materials can undergo reversible electrochemical reactions within a very short period of time without compromising their high charge storage capacity. In this article, we systematically survey the current state of the art regarding the fabrication and electrochemical performance of the most promising classes of pseudocapacitive/battery-type electrode materials for supercapacitors. The text covers metal oxides, mixed metal oxides, conducting polymers, and MXenes. Closing the article, some of the outstanding problems for increasing the performance of SCs are discussed, and future research directions are suggested.

中文翻译：

高性能超级电容器用赝电容和类电池电极材料的研究进展

超级电容器是具有独特特性的储能装置，与电池一起产生了重大的研究工作，在过去几年中开发了各种类型的电极材料。该应用的当前趋势已逐渐转向赝电容/类电池材料。与双电层电容器相比，赝电容/电池型材料具有决定性优势，因为它们通常能够提供更高的能量密度。此外，这些材料可以在很短的时间内发生可逆的电化学反应，而不会影响它们的高电荷存储容量。在本文中，我们系统地调查了最有希望的超级电容器类赝电容/电池型电极材料的制造和电化学性能的当前状态。文本涵盖金属氧化物、混合金属氧化物、导电聚合物和 MXene。最后，讨论了提高 SC 性能的一些突出问题，并提出了未来的研究方向。

更新日期：2022-06-07

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