Abstract Supercapacitors (SCs) with excellent electrochemical properties are considered as potential energy storage devices in applications of increasing power demands. Carbonaceous materials with the developed specific surface area (SSA) and abundant porous structure, are frequently combined with other carbon materials or directly used as electrode material for SCs. Renewable resources of biomass are commonly utilized as carbon precursors owing to their low-cost, easy availability, facile preparation, and environmentally friendly. This article reviews the progress in renewable resources based free-standing electrode materials on the application of supercapacitors. After a concise introduction of SCs, the methodologies on enhancement of the electrochemical performance and obtaining self-supported carbon materials are discussed. Then biomass-based binder-free electrode materials with designed unique architecture for high performance SCs are highlighted. Finally, the challenges associated with biomass derived free-standing carbon materials are pointed out and strategies to meet the practical application of supercapacitors in advanced energy storage systems are discussed. It is expected that this review would inspire researchers with new ideas to promote progress in the field.

中文翻译：

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生物质衍生碳作为超级电容器的无粘合剂电极材料

摘要 具有优异电化学性能的超级电容器（SCs）被认为是电力需求不断增加的潜在储能装置。碳质材料具有发达的比表面积 (SSA) 和丰富的多孔结构，经常与其他碳材料结合或直接用作 SCs 的电极材料。生物质的可再生资源由于其成本低、易于获得、易于制备和环境友好而被普遍用作碳前体。本文综述了基于可再生资源的独立电极材料在超级电容器应用方面的进展。在简要介绍了 SCs 之后，讨论了提高电化学性能和获得自支撑碳材料的方法。然后重点介绍了具有为高性能 SCs 设计的独特结构的基于生物质的无粘合剂电极材料。最后，指出了与生物质衍生的独立碳材料相关的挑战，并讨论了满足超级电容器在先进储能系统中实际应用的策略。预计这篇综述将激发研究人员的新想法，以促进该领域的进步。