Supercapacitor Operating At 200 Degrees Celsius

作者：Borges Raquel S; Reddy Arava Leela Mohana^*; Rodrigues Marco Tulio F; Gullapalli Hemtej; Balakrishnan Kaushik; Silva Glaura G; Ajayan Pulickel M

来源：Scientific Reports, 2013, 3(1): 2572.

DOI：10.1038/srep02572

The operating temperatures of current electrochemical energy storage devices are limited due to electrolyte degradation and separator instability at higher temperatures. Here we demonstrate that a tailored mixture of materials can facilitate operation of supercapacitors at record temperatures, as high as 2006 degrees C. Composite electrolyte/separator structures made from naturally occurring clay and room temperature ionic liquids, with graphitic carbon electrodes, show stable supercapacitor performance at 2006 degrees C with good cyclic stability. Free standing films of such high temperature composite electrolyte systems can become versatile functional membranes in several high temperature energy conversion and storage applications.

• 出版日期2013-9-3