Sputtering of sub-micrometer aluminum layers as compact, high-performance, light-weight current collector for supercapacitors

Busom J.; Schreiber A.; Tolosa A.; Jaeckel N.; Grobelsek I.; Peter N. J.; Presser V.

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Sputtering of sub-micrometer aluminum layers as compact, high-performance, light-weight current collector for supercapacitors

机译：溅射亚微米级铝层，作为紧凑型，高性能，轻量型集电器，用于超级电容器

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Supercapacitors are devices for rapid and efficient electrochemical energy storage and commonly employ carbon coated aluminum foil as the current collector. However, the thickness of the metallic foil and the corresponding added mass lower the specific and volumetric performance on a device level. A promising approach to drastically reduce the mass and volume of the current collector is to directly sputter aluminum on the freestanding electrode instead of adding a metal foil. Our work explores the limitations and performance perspectives of direct sputter coating of aluminum onto carbon film electrodes. The tight and interdigitated interface between the metallic film and the carbon electrode enables high power handling, exceeding the performance and stability of a state-of-the-art carbon coated aluminum foil current collector. In particular, we find an enhancement of 300% in specific power and 186% in specific energy when comparing aluminum sputter coated electrodes with conventional electrodes with Al current collectors. (C) 2016 Elsevier B.V. All rights reserved.

机译：超级电容器是用于快速且有效地电化学能量存储的装置，并且通常使用碳涂覆的铝箔作为集电器。然而，金属箔的厚度和相应的添加质量降低了器件水平上的比性能和体积性能。大大减少集电器的质量和体积的一种有前途的方法是直接在独立式电极上溅射铝，而不是添加金属箔。我们的工作探索了将铝直接溅射镀到碳膜电极上的局限性和性能观点。金属膜和碳电极之间紧密且相互交叉的界面实现了高功率处理，超过了最先进的碳涂层铝箔集电器的性能和稳定性。特别是，当将铝溅射镀膜的电极与具有Al集电器的常规电极进行比较时，我们发现比功率提高了300％，比能量提高了186％。（C）2016 Elsevier B.V.保留所有权利。

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来源
《Journal of power sources》 |2016年第15期|432-440|共9页
作者
Busom J.; Schreiber A.; Tolosa A.; Jaeckel N.; Grobelsek I.; Peter N. J.; Presser V.;
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作者单位

INM Leibniz Inst New Mat, Saarbrucken, Germany|Univ Saarland, Dept Mat Sci & Engn, Saarbrucken, Germany;

INM Leibniz Inst New Mat, Saarbrucken, Germany;

INM Leibniz Inst New Mat, Saarbrucken, Germany|Univ Saarland, Dept Mat Sci & Engn, Saarbrucken, Germany;

INM Leibniz Inst New Mat, Saarbrucken, Germany|Univ Saarland, Dept Mat Sci & Engn, Saarbrucken, Germany;

INM Leibniz Inst New Mat, Saarbrucken, Germany;

Max Planck Inst Eisenforsch GmbH, Dusseldorf, Germany;

INM Leibniz Inst New Mat, Saarbrucken, Germany|Univ Saarland, Dept Mat Sci & Engn, Saarbrucken, Germany;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类
关键词
Electrochemical energy storage; Current collector; Supercapacitor;

机译：电化学储能;集电器;超级电容器;

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2. Designing chemical bonds between active materials and current collectors for packaging a high-performance supercapacitor [J] . Wang Haoxiang, Yang He, Wang Dong, Nanotechnology . 2020,第10期

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6. Facile Fabrication of Nickel Aluminum Layered Double Hydroxide/CarbonNanotube Electrodes Toward High-Performance Supercapacitors [O] . Kaicheng Luo, Junjun Zhang, Wei Chu, 2020

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Sputtering of sub-micrometer aluminum layers as compact, high-performance, light-weight current collector for supercapacitors

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