Hierarchical Ni(OH)2/Cu(OH)2 interwoven nanosheets in situ grown on Ni-Cu-P alloy plated cotton fabric for flexible high-performance energy storage

Man Zhou; Zhihang Jin; Lifang Su; Kai Li; Hong Zhao; Jinguang Hu; Zaisheng Cai; Yaping Zhao

doi:10.1039/d0na00210k

Hierarchical Ni(OH)₂/Cu(OH)₂ interwoven nanosheets in situ grown on Ni-Cu-P alloy plated cotton fabric for flexible high-performance energy storage

Nanoscale Adv. 2020 Jun 5;2(8):3358-3366. doi: 10.1039/d0na00210k. eCollection 2020 Aug 11.

Authors

Man Zhou¹, Zhihang Jin^{1

2}, Lifang Su^{1

2}, Kai Li^{1

2}, Hong Zhao^{1

3}, Jinguang Hu³, Zaisheng Cai¹, Yaping Zhao^{1

2}

Affiliations

¹ Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University Shanghai 201620 P. R. China zhaoyping@dhu.edu.cn.
² Fundamental Experimental Chemistry Center, Donghua University Shanghai 201620 P. R. China.
³ Department of Chemical & Petroleum Engineering, Schulich School of Engineering, University of Calgary Calgary AB T2N 4V8 Canada.

Abstract

Flexible energy storage electrodes with high conductivity and capacity are crucial for wearable electronic clothes. Herein, a flexible hierarchical Ni(OH)₂/Cu(OH)₂ interwoven nanosheets in situ coated on Ni-Cu-P alloy plated cotton fabric textile (NCO/CF), which displays perfect conductive and electrochemical performance, is prepared by electroless deposition and electrochemical oxidation method. While the Ni-Cu-P alloy layer coated on the fabric effectively contributes to excellent mechanical performance and electro-conductivity of the as-prepared NCO/CF electrode, the hierarchical Ni(OH)₂/Cu(OH)₂ interwoven nanosheets in the oxidation layer effectively lead to a high energy storage performance with a specific areal capacity of 4.7 C cm^-2 at a current density of 2 mA cm^-2. When the power density of the two-electrode system based on NCO/CF and the carbon cloth (CC) is 2.4 mW cm^-2, the energy density is 1.38 mW h cm^-2. Furthermore, the flexible solid-state energy storage f-NCO/CF//CC is assembled in a self-powered system and supplies continuous power for electronic devices, demonstrating that NCO/CF is promising to be applied in various energy storage devices to power portable and wearable devices in the future.