All-graphene-battery: bridging the gap between supercapacitors and lithium ion batteries

被引：212

作者：

Kim, Haegyeom ^{[1
]}

Park, Kyu-Young ^{[1
]}

Hong, Jihyun ^{[1
]}

Kang, Kisuk ^{[1
,2
]}

机构：

[1] Seoul Natl Univ, RIAM, Dept Mat Sci & Engn, Seoul 151742, South Korea

[2] Seoul Natl Univ, Ctr Nanoparticle Res, IBS, Seoul 151742, South Korea

来源：

SCIENTIFIC REPORTS | 2014年 / 4卷

基金：

新加坡国家研究基金会;

关键词：

HIGH-ENERGY; HIGH-POWER; ELECTROCHEMICAL PROPERTIES; FUNCTIONALIZED GRAPHENE; CATHODE MATERIAL; NEXT-GENERATION; CARBON; STORAGE; SINGLE; OXIDE;

D O I：

10.1038/srep05278

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Herein, we propose an advanced energy-storage system: all-graphene-battery. It operates based on fast surface-reactions in both electrodes, thus delivering a remarkably high power density of 6,450 W kg(-1) total electrode while also retaining a high energy density of 225 Wh kg(-1) total electrode, which is comparable to that of conventional lithium ion battery. The performance and operating mechanism of all-graphene-battery resemble those of both supercapacitors and batteries, thereby blurring the conventional distinction between supercapacitors and batteries. This work demonstrates that the energy storage system made with carbonaceous materials in both the anode and cathode are promising alternative energy-storage devices.

引用

页数：8

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