Supercapacitors Performance Evaluation
Supercapacitors Performance Evaluation
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DOI：
10.1002/aenm.201401401
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发表时间：
2015-03-18
影响因子：
27.8
通讯作者：
Pan, Ning
中科院分区：
文献类型：
--
作者：
Zhang, Sanliang;Pan, Ning
超级电容器的性能可以通过一系列关键参数来表征，包括单元电容、工作电压、等效串联电阻、功率密度、能量密度和时间常数。为了精确地测量这些参数，已经提出了各种方法，并在学术界和工业界使用。因此，由于不同评价方法和做法之间的不一致，造成了一些混乱。这种混乱阻碍了新研究成果的有效交流，并在将新的超级电容器技术从研究实验室转移到商业应用方面制造了障碍。本文基于公开资料，对超级电容器性能评价的常用工具、关键性能指标、计算方法和主要影响因素进行了梳理和评述。此后，不一致的主要来源被确定，并提出了可能的解决方案，重点是设备性能与材料性能和超级电容器的速率依赖性。我们希望，通过使用可靠的，内在的，和可比的参数，现有的不一致和混乱可以在很大程度上消除，以促进在该领域的进一步进展。
The performance of a supercapacitor can be characterized by a series of key parameters, including the cell capacitance, operating voltage, equivalent series resistance, power density, energy density, and time constant. To accurately measure these parameters, a variety of methods have been proposed and are used in academia and industry. As a result, some confusion has been caused due to the inconsistencies between different evaluation methods and practices. Such confusion hinders effective communication of new research findings, and creates a hurdle in transferring novel supercapacitor technologies from research labs to commercial applications. Based on public sources, this article is an attempt to inventory, critique and hopefully streamline the commonly used instruments, key performance metrics, calculation methods, and major affecting factors for supercapacitor performance evaluation. Thereafter the primary sources of inconsistencies are identified and possible solutions are suggested, with emphasis on device performance vs. material properties and the rate dependency of supercapacitors. We hope, by using reliable, intrinsic, and comparable parameters produced, the existing inconsistencies and confusion can be largely eliminated so as to facilitate further progress in the field.