Empowering the smart grid: can redox batteries be matched to renewable energy systems for energy storage?
Empowering the smart grid: can redox batteries be matched to renewable energy systems for energy storage?
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DOI：
10.1039/c3ee23708g
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发表时间：
2013-02
影响因子：
32.5
通讯作者：
Jonathan E. Halls;Amanda Hawthornthwaite;Russell J. Hepworth;N. Roberts;Kevin J. Wright;Yan Zhou;S. Haswell;Stephanie K. Haywood;S. Kelly;N. Lawrence;J. Wadhawan
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作者：
Jonathan E. Halls;Amanda Hawthornthwaite;Russell J. Hepworth;N. Roberts;Kevin J. Wright;Yan Zhou;S. Haswell;Stephanie K. Haywood;S. Kelly;N. Lawrence;J. Wadhawan
在这项工作中，考虑了通过各种电流波形对不可分割的铈锌氧化还原电池进行充电，其中一些电流波形模仿可再生能源（太阳能、风能、潮汐能、生物燃料燃烧）向电换能器的输出，其中电池通过仅扩散的条件进行操作，并且恒电流放电。在合理的假设下，所开发的数学模型使得能够观察到以恒定功率输入充电的电池的性能特性在各种电流-充电波形之间存在差异，其中电池几何形状和电极动力学起着微妙但重要的作用;特别地，对于薄且不遭受牺牲电极腐蚀的日光充电电池观察到高效率，并且已经经历了充电-放电循环。的系统的性能特点解释的智能电网实现的后果，并表明，对于一个恒定的功率输入，最匹配的可再生能源是生物燃料燃烧的电流输出，随时间线性增加。
The charging of an undivided cerium–zinc redox battery by various current waveforms some of which mimic the output of renewable energy (solar, wind, tidal, biofuel burning) to electricity transducers is considered in this work, where the battery operates through diffusion-only conditions, and is discharged galvanostatically. Under reasonable assumption, the mathematical model developed enables the observation that the performance characteristic of the cells charged with a constant power input differentiates between the various current–charge waveforms, with cell geometry and electrode kinetics playing subtle, but significant, roles; in particular, high efficiency is observed for sunlight-charged batteries which are thin and suffer no corrosion of the sacrificial electrode, and which have already experienced a charge–discharge cycle. The performance characteristics of the systems are interpreted in the light of consequences for smart grid realisation, and indicate that, for a constant power input, the most matched renewable is biofuel burning with a current output that linearly increases with time.