Puff Pastry-like Co(OH)2 Nano-flakes Grown on Nickel Foams for High-performance Supercapacitors

作者：Zhu, Shuaishuai; Dai, Yuming^*; Zhang, Chuanxiang; Zhang, Tianyu; Zhu, Keyu; Zeng, Yuhan; He, Ziyang

来源：International Journal of Electrochemical Science, 2018, 13(1): 690-698.

DOI：10.20964/2018.01.69

• supercapacitors
• cobalt hydroxide
• electrodeposition
• nanoflakes
• energy storage and conversion

The unique puff pastry-like Co(OH)(2) nano-flakes were potentiostatic electrodeposited on the surface of Ni foams. The nano-flakes in the composite provides sufficient contact of active material with electrolyte and facilitates the adsorption/desorption of ions in the electrode solution. It exhibits a high specific capacitance of 2138 F/g at 5 mV/s, and the resistance is only 0.65 Omega It also shows a good long-term stability of 80.5 % capacitance retention over 10000 charge/discharge cycles at 5 A/g.

• 出版日期2018-1
• 单位南京工程学院