Publisher： John Wiley & Sons Inc
E-ISSN： 2196-0216|2|4|497-502
ISSN： 2196-0216
Source： CHEMELECTROCHEM (ELECTRONIC), Vol.2, Iss.4, 2015-04, pp. : 497-502
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
AbstractWe report a simple, cost‐effective, and potentially scalable approach for the fabricating hierarchically porous CoOOH thin‐film supercapacitors by combining a soft‐templating and a chemical‐bath deposition (CBD) method. The prepared electrode materials exhibit uniform morphology and highly ordered macropores, achieving a maximum specific capacitance of 387 F g−1 at a current density of 1 mA cm−2, with a high energy of 19 Wh kg−1 and power density of 1713 W kg−1. In addition, the porous CoOOH electrodes show good stability with a cycling efficiency >90 % after 5000 charge–discharge cycles, which could lead to the generation of novel energy‐storage devices with better efficiencies.
Access to resources
Recommend
