一种提高离子超级电容器碳/聚合物接口兼容性的方法
Shuai Ruan1, Wenjie Xin1, Chen Wang2
1College of Materials Science and Engineering, Zhejiang University of Technology, Zhejiang 310014, China.
Journal of colloid and interface science
|August 29, 2023
概括
一种基于碳的新型柔性材料 (Polyaniline @ Carbon Foam-超临界二氧化碳) 已被开发用于高性能储能. 这种材料具有出色的超级电容和储存能力,增强了电化学设备的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 开发高效能储能元件对于经济进步至关重要.
- 在复合电极中优化接口兼容性和主动位点利用是提高电化学性能的关键.
研究的目的:
- 合成一种基于碳的灵活离子超级电容正材料,具有增强的接口兼容性和电化学特性.
- 为了研究合成材料的超容量和储存性能.
主要方法:
- 聚氨酸@碳泡-超临界二氧化碳 (P@C-SC) 复合材料的合成,使用商用胺泡和氨酸单体.
- 使用超临界流体技术来提高接口兼容性.
- 使用三电极系统在H2SO4和Li2SO4电解质中评估电化学性能.
主要成果:
- 该P@C-SC材料在H2SO4电解质中显示出2.2V的高工作电压.
- 在1A/g时达到898F/g的特定电容,最大能量密度为50.8Wh/kg.
- 显示出出色的储能性能,在1A/g时的特定容量为~900 mAh/g,在200个循环后保留400 mAh/g,100%的库伦比效率.
结论:
- 超临界流体技术有效地解决了复合材料的接口兼容性问题.
- 开发的P@C-SC材料显示出高性能离子超级电容器的巨大潜力.
- 这种方法提供了对综合材料设计的见解,以提高电化学性能和超临界流体在储能中的应用性.
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