Alternating Voltage Introduced NiCo Double Hydroxide Layered Nanoflakes for an Asymmetric Supercapacitor

作者：Jing, Mingjun; Hou, Hongshuai; Banks, Craig E; Yang, Yingchang; Zhang, Yan; Ji, Xiaobo^*

来源：ACS Applied Materials & Interfaces, 2015, 7(41): 22741-22744.

DOI：10.1021/acsami.5b05660

• alternating voltage
• NiCo double hydroxide
• electrochemical
• nanoflakes
• asymmetric supercapacitors

An electrochemical alternating voltage approach of producing NiCo double hydroxide (NiCoDH) layered ultrathin flakes with with large specific surface area (355.8 m(2) g(-1)), remarkable specific capacitance and rate capability is presented. The obtained NiCoDH as anode for asymmetric supercapacitors shows excellent energy density of 17.5 Wh kg(-1) at high power density of 10.5 kW kg(-1) and cycling stability (91.2% after 10 000 cycles).

• 出版日期2015-10-21
• 单位中南大学