超级电容器
材料科学
石墨烯
串联
电压
电解质
光电子学
多孔性
纳米技术
电容
复合材料
电极
电气工程
化学
工程类
物理化学
作者
Fan Zhang,Yanhong Lu,Xi Yang,Long Zhang,Tengfei Zhang,Kai Leng,Yingpeng Wu,Yi Huang,Yanfeng Ma,Yongsheng Chen
出处
期刊:Small
[Wiley]
日期:2014-02-27
卷期号:10 (11): 2285-2292
被引量:58
标识
DOI:10.1002/smll.201303240
摘要
Pursuing higher working voltage and packaged energy density, an internal tandem supercapacitor has been successfully designed and fabricated based on graphene‐based porous carbon hybrid material. Compared with the packaged energy density of 27.2 Wh kg cell −1 and working voltage of 3.5 V using EMIMBF 4 electrolyte for the conventional single‐cell supercapacitor, the internal tandem device with the same material achieves a much higher working voltage of 7 V as well as a significantly improved energy density of 36.3 Wh kg cell −1 (increased by 33%), which is also about 7 times of that of the state‐of‐art commercial supercapacitors. A flexible internal tandem device is also designed and fabricated and demonstrated similar excellent performance.
科研通智能强力驱动
Strongly Powered by AbleSci AI