A Nonaqueous Potassium-Based Battery-Supercapacitor Hybrid Device

被引：290
作者：
Fan, Ling [1 ]
Lin, Kairui [2 ]
Wang, Jue [1 ]
Ma, Ruifang [1 ]
Lu, Bingan [1 ,3 ,4 ,5 ]
机构：
[1] Hunan Univ, Sch Phys & Elect, Changsha 410082, Hunan, Peoples R China
[2] Quanzhou Fifth High Sch ChengDong, Quanzhou 362000, Peoples R China
[3] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China
[4] Mat Technol Co Ltd, Wing Lok St, Sheung Wan 999077, Hong Kong, Peoples R China
[5] Fujian Strait Res Inst Ind Graphene Technol, Jinjang 362200, Peoples R China
来源：
ADVANCED MATERIALS | 2018年 / 30卷 / 20期
基金：
中国国家自然科学基金;
关键词：
batteries; battery-supercapacitor hybrid devices; nonaqueous batteries; potassium ion electrolytes; supercapacitors; PRUSSIAN WHITE ANALOGS; RESEARCH PROGRESS; ION BATTERIES; HIGH-CAPACITY; LOW-COST; CATHODE; SODIUM; INTERCALATION; ELECTROLYTE; SULFUR;
D O I：
10.1002/adma.201800804
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A low cost nonaqueous potassium-based battery-supercapacitor hybrid device (BSH) is successfully established for the first time with soft carbon as the anode, commercialized activated carbon as the cathode, and potassium bis(fluoro-slufonyl)imide in dimethyl ether as the electrolyte. This BSH reconciles the advantages of potassium ion batteries and supercapacitors, achieving a high energy density of 120 W h kg(-1), a high power density of 599 W kg(-1), a long cycle life of 1500 cycles, and an ultrafast charge/slow discharge performance (energy density and power density are calculated based on the total mass of active materials in the anode and cathode). This work demonstrates a great potential of applying the nonaqueous BSH for low cost electric energy storage systems.
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页数：7
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