Zhou Man, Jin Zhihang, Su Lifang, Li Kai, Zhao Hong, Hu Jinguang, Cai Zaisheng, Zhao Yaping
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
Fundamental Experimental Chemistry Center, Donghua University Shanghai 201620 P. R. China.
Nanoscale Adv. 2020 Jun 5;2(8):3358-3366. doi: 10.1039/d0na00210k. eCollection 2020 Aug 11.
Flexible energy storage electrodes with high conductivity and capacity are crucial for wearable electronic clothes. Herein, a flexible hierarchical Ni(OH)/Cu(OH) interwoven nanosheets 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)/Cu(OH) interwoven nanosheets in the oxidation layer effectively lead to a high energy storage performance with a specific areal capacity of 4.7 C cm at a current density of 2 mA cm. When the power density of the two-electrode system based on NCO/CF and the carbon cloth (CC) is 2.4 mW cm, the energy density is 1.38 mW h cm. 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.
具有高导电性和高容量的柔性储能电极对于可穿戴电子服装至关重要。在此，通过化学镀和电化学氧化方法制备了一种涂覆在镀有Ni-Cu-P合金的棉织物（NCO/CF）上的柔性分级Ni(OH)/Cu(OH)交织纳米片，其具有优异的导电和电化学性能。织物上涂覆的Ni-Cu-P合金层有效地提高了所制备的NCO/CF电极的机械性能和导电性，而氧化层中的分级Ni(OH)/Cu(OH)交织纳米片有效地实现了高储能性能，在2 mA cm的电流密度下比面积容量为4.7 C cm。当基于NCO/CF和碳布（CC）的两电极系统的功率密度为2.4 mW cm时，能量密度为1.38 mW h cm。此外，柔性固态储能f-NCO/CF//CC被组装在一个自供电系统中，并为电子设备提供持续电力，这表明NCO/CF有望在未来应用于各种储能设备，为便携式和可穿戴设备供电。
