共查询到18条相似文献,搜索用时 109 毫秒
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利用WPI数据库对超级电容器电极材料的专利申请情况进行统计分析,讨论了四种主要电极材料,并分别统计了其申请量随时间的变化情况以及主要申请人的排名情况,同时对近十年的主要申请人的申请内容进行简单梳理,以帮助国内申请人了解超级电容器电极材料的发展历史和发展趋势. 相似文献
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分析超级电容器的制备以及其化学性能,制备出了无定型氧化锰电极,并将制得的氧化锰电极置入电解液中,在一定的电位范围中扫描绘制了循环伏安曲线,另外,将电极在一定电流下放电,分析其可逆性。从测试结果可以看出,这种电极的充放电性能良好,且具有理想的可逆性。 相似文献
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Carbon materials have played a significant role in the development of alternative clean and sustainable energy technologies. In particular, we will systematically discuss the applications of graphene nanosheets as an electrode material for supercapacitors. This article summarizes, the effect of size and nature of ions on pseudocapacitance and double layer capacitance of graphene electrode using CV and EIS techniques. The morphology and nature of the prepared electrode was investigated employing a scanning electron microscope. The prepared electrode shows better double layer characteristics in NaOH electrolyte in the potential range between −0.55 and 0.3 V (V vs. SCE) at a scan rate of 100 mV s−1. 相似文献
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The impedance behavior of supercapacitors is not only a key issue for the parameterize modeling of the supercapacitor, but also an important factor for the design processes of an intelligent energy-management system which monitors the state of the supercapacitor and predicts its performance. In this paper, a simple equivalent circuit model and convolution algorithm based on impedance analysis were presented to assess state-of-charge, terminal voltage and charge/discharge capability of supercapacitors. Furthermore, an impedance function based on the equivalent impedance model was established to simulate the dynamic performance of a supercapacitor. The results can be used to control the reliable prediction of supercapacitors performance in electric vehicles, hybrid electric vehicles, fuel cell vehicles and classical automotive applications. 相似文献
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综述了NaxCo2O4系、ZnO系和CuAlO2系氧化物热电材料的晶体结构、制备方法和研究现状,发现这三类热电材料均具有较好的热电性能,具有进一步研究的价值。阐述了金属氧化物热电材料未来的研究方向。 相似文献
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