Enhanced Electric Double Layer Capacitance of Graphite Oxide Intercalated by Poly(sodium 4-styrensulfonate) with High Cycle Stability

被引：124

作者：

Jeong, Hae-Kyung ^{[1
]}

Jin, Meihua ^{[1
]}

Ra, Eun Ju ^{[1
]}

Sheem, Kyeu Yoon ^{[2
]}

Han, Gang Hee ^{[1
]}

Arepalli, Sivaram ^{[1
]}

Lee, Young Hee ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Dept Energy Sci, Phys Div BK21,Sungkyunkwan Adv Inst Nanotechnol, Ctr Nanotubes & Nanostruct Composites, Suwon 440746, South Korea

[2] Samsung SDI, Corp R&D Ctr, Energy Lab, Yongin 446577, South Korea

来源：

ACS NANO | 2010年 / 4卷 / 02期

关键词：

graphite oxide; supercapacitor; electric double layer capacitor; poly(sodium 4-styrensulfonate); electrolyte ion kinetics; ELECTROCHEMICAL PROPERTIES; CARBON MATERIALS; SUPERCAPACITORS;

D O I：

10.1021/nn901790f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We propose a new material for high power and high density supercapacitors with excellent cycle stability. Graphite oxide (PSS-GO) intercalated with poly(sodium 4-styrensulfonate) showed high performance of electric double layer capacitance (EDLC) compared to that of the pristine graphite oxide. Specific capacitance of the PSS-GO reached 190 F/g, and the energy density was much improved to 38 Wh/kg with a power density of 61 W/kg. Cycle test showed that the specific capacitance decreased by only 12% after 14860 cycles, providing excellent cyclic stability. The high EDLC performance of PSS-GO composite was attributed to the wide interlayer distance and simple pare structures accommodating fast ion kinetics.

引用

页码：1162 / 1166

页数：5

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