Energy harvesting and energy storage are two critical aspects of supporting the energy transition and sustainability. Many studies have been conducted to achieve excellent performance devices for these two purposes. As energy‐storing devices, supercapacitors (SCs) have tremendous potential to be applied in several sectors. Some electrochemical characterizations define the performance of SCs. Electrochemical impedance spectroscopy (EIS) is one of the most powerful analyses to determine the performance of SCs. Some parameters obtained from this analysis include bulk resistance, charge‐transfer resistance, total resistance, specific capacitance, response frequency, and response time. This work provides a holistic and comprehensive review of utilizing EIS for SC characterization. Overall, researchers can benefit from this review by gaining a comprehensive understanding of the utilization of electrochemical impedance spectroscopy (EIS) for characterizing supercapacitors (SCs), enabling them to enhance SC performance and contribute to the advancement of energy harvesting and storage technologies.

中文翻译：

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通过电化学阻抗谱了解超级电容器材料的行为：综述

能量收集和能量存储是支持能源转型和可持续发展的两个关键方面。为了实现这两个目的的高性能器件，已经进行了许多研究。作为储能装置，超级电容器（SC）在多个领域具有巨大的应用潜力。一些电化学特性定义了 SC 的性能。电化学阻抗谱 (EIS) 是确定 SC 性能的最有力的分析方法之一。从该分析中获得的一些参数包括体电阻、电荷转移电阻、总电阻、比电容、响应频率和响应时间。这项工作对利用 EIS 进行 SC 表征进行了全面而全面的回顾。总体而言，研究人员可以从本次综述中受益，全面了解电化学阻抗谱 (EIS) 用于表征超级电容器 (SC) 的用途，使他们能够提高 SC 性能并为能量收集和存储技术的进步做出贡献。