Using eggshell membrane as a separator in supercapacitor
- 作者：Haijun Yu ; Qunwei Tang ; Jihuai Wu ; jhwu@hqu.edu.cn ; Youzhen Lin ; Leqing Fan ; Miaoliang Huang ; Jianming Lin ; Yan Li ; Fuda Yu
- 关键词：Eggshell membrane ; Supercapacitor ; Separator ; Stability
- 刊名：Journal of Power Sources
- 出版年：2012
- 期刊代码：58_03787753
- 类别：ce
- 出版时间：15 May, 2012
- 卷：206
- 期：Complete
- 页码：463-468
- 文件大小：689 K
摘要
A separator is prepared based on natural and flexible eggshell membrane (ESM) for supercapacitor application. Morphology observation shows that the ESM is consisted of hierarchically ordered macroporous network. With a high decomposition temperature (>220 掳C), enough mechanical strength (蟽max = 6.59 卤 0.48 MPa, 蓻max = 6.98 卤 0.31%, respectively), and low water uptake and swelling property (<10%), ESM could be a promising candidate for supercapacitor separator. As expected, the supercapacitor with ESM separator exhibits outstanding electrochemical performances, such as low resistance, quick charge-discharge ability (蟿 is 4.76 s), and good cyclic stability (92%retention after 10,000 cycles). However, the one with PE separator shows worse properties (high resistance, low specific capacitance, etc.). This research provides new insight into the preparation of natural, low-cost and high-performance separator for supercapacitor and other applications.