Integration of supercapacitors into printed circuit boards
Integration of supercapacitors into printed circuit boards
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DOI：
10.1016/j.est.2018.06.016
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发表时间：
2018-10
影响因子：
9.4
通讯作者：
Dina Ibrahim Abouelamaiem;L. Rasha;Guanjie He;T. Neville;J. Millichamp;T. Mason;A. B. Jorge;I. Parkin
中科院分区：
文献类型：
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作者：
Dina Ibrahim Abouelamaiem;L. Rasha;Guanjie He;T. Neville;J. Millichamp;T. Mason;A. B. Jorge;I. Parkin
由于柔性、可穿戴和便携式电子技术的快速发展，物理集成的能量存储装置获得越来越多的关注。超级电容器元件首次被集成到印刷电路板（PCB）结构中。这项概念验证研究为将超级电容器集成到电力电子设备中并与PCB燃料电池混合铺平了道路。商业Norit活性炭（NAC）被用作电极材料，并在两种类型的电解质，硫酸钠（Na 2SO 4）水溶液电解质，和Na 2SO 4-聚乙烯醇（Na 2SO 4-PVA）凝胶电解质进行了测试。电化学测量将SC-PCB与标准双电极纽扣电池超级电容器进行比较。在固态SC-PCB系统中，在26 mW cm-3的功率密度下获得了0.56 mW h cm-3的体积能量密度，这是标准电池配置中获得的值的两倍多。这是由于去除了标准电池中的笨重组件，和/或减小了整个器件的厚度，从而减小了SC-PCB配置的总体积。结果表明，超级电容器嵌入到PCB的广泛应用的巨大潜力。此外，通过与其他基于PCB的电化学电源系统（如燃料电池）的紧密物理集成，可以实现更多优势。
Physically integrated energy storage devices are gaining increasing interest due to the rapid development of flexible, wearable and portable electronics technology. For the first time, supercapacitor components have been integrated into a printed circuit board (PCB) construct. This proof-of-concept study paves the way for integrating supercapacitors into power electronics devices and hybridising with PCB fuel cells. Commercial Norit activated carbon (NAC) was used as the electrode material and was tested in two types of electrolytes, sodium sulfate (Na2SO4) aqueous electrolyte, and Na2SO4-polyvinyl alcohol (Na2SO4-PVA) gel electrolyte. Electrochemical measurements compare the SC-PCBs to standard two-electrode button-cell supercapacitors. A volumetric energy density of 0.56 mW h cm−3at a power density of 26 mW cm−3was obtained in the solid-state SC-PCB system, which is over twice the values acquired in the standard cell configuration. This is due to the removal of bulky components in the standard cell, and/or decreased thickness of the overall device, and thus a decrease in the total volume of the SC-PCB configuration. The results show great potential for embedding supercapacitors into PCBs for a broad range of applications. In addition, further advantages can be realised through close physical integration with other PCB-based electrochemical power systems such as fuel cells.