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A Flexible Supercapacitor with High True Performance

44 Pages Posted: 12 Sep 2018 Sneak Peek Status: Published

See all articles by Zhonghua Ren

Zhonghua Ren

Harbin Institute of Technology - Department of Material Science and Engineering

Yuanji Li

Harbin Institute of Technology - Department of Material Science and Engineering

Jie Yu

Harbin Institute of Technology - Department of Material Science and Engineering

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Abstract

The demand for better “true performance” of supercapacitors, which is defined as the energy density based on the packaged cell with high active mass loading, is spurred by the ever-increasing energy storage market. The true performance of present supercapacitors is unsatisfactory, which is greatly limited by the currently used current collectors. Here, we develop an ultrathin ultralight through-pore structured nickel current collector with excellent flexibility by electrodepositing nickel on laser drilled stainless steel sheets filled with epoxy resin. Based on the new current collector, the electrodes possess higher performance than those fabricated by employing conventional current collectors. At a high active mass loading, the assembled supercapacitors show superior flexibility and high energy densities of 50.4 W hr L−1 and 30.1 W hr kg−1 based on the packaged cell, outperforming the present supercapacitors. Our strategy provides a new opportunity for promoting the further development of supercapacitors by enhancing the true performance.

Suggested Citation

Ren, Zhonghua and Li, Yuanji and Yu, Jie, A Flexible Supercapacitor with High True Performance (September 11, 2018). Available at SSRN: https://ssrn.com/abstract=3248008 or http://dx.doi.org/10.2139/ssrn.3248008
This is a paper under consideration at Cell Press and has not been peer-reviewed.

Zhonghua Ren

Harbin Institute of Technology - Department of Material Science and Engineering

92 West Dazhi Street
Nan Gang District
Harbin, 150001
China

Yuanji Li

Harbin Institute of Technology - Department of Material Science and Engineering

92 West Dazhi Street
Nan Gang District
Harbin, 150001
China

Jie Yu (Contact Author)

Harbin Institute of Technology - Department of Material Science and Engineering ( email )

92 West Dazhi Street
Nan Gang District
Harbin, 150001
China

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