Polymer-Graphene Nanocomposites as Ultrafast-Charge and -Discharge Cathodes for Rechargeable Lithium Batteries

被引：414

作者：

Song, Zhiping ^{[1
,5
]}

Xu, Terrence ^{[1
]}

Gordin, Mikhail L. ^{[1
]}

Jiang, Ying-Bing ^{[2
]}

Bae, In-Tae ^{[3
]}

Xiao, Qiangfeng ^{[4
]}

Zhan, Hui ^{[5
]}

Liu, Jun ^{[6
]}

Wang, Donghai ^{[1
]}

机构：

[1] Penn State Univ, Dept Mech & Nucl Engn, University Pk, PA 16802 USA

[2] Univ New Mexico, Ctr Microengn Mat, Albuquerque, NM 87131 USA

[3] SUNY Binghamton, Small Scale Syst Integrat & Packaging Ctr, Binghamton, NY 13902 USA

[4] Gen Motor Tech Ctr, Warren, MI 48092 USA

[5] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China

[6] Pacific NW Natl Lab, Richland, WA 99352 USA

来源：

NANO LETTERS | 2012年 / 12卷 / 05期

关键词：

Lithium battery; cathode; polymer; graphene; nanocomposite; NANOTUBE COMPOSITE CATHODE; LIQUID-PHASE EXFOLIATION; ION BATTERIES; LI-ION; FUNCTIONALIZED GRAPHENE; CYCLIC PERFORMANCE; ELECTRODE; STORAGE; GRAPHITE; CAPACITY;

D O I：

10.1021/nl2039666

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electroactive polymers are a new generation of "green" cathode materials for rechargeable lithium batteries. We have developed nanocomposites combining graphene with two promising polymer cathode materials, poly(anthraquinonyl sulfide) and polyimide, to improve their high-rate performance. The polymer graphene nanocomposites were synthesized through a simple in situ polymerization in the presence of graphene sheets. The highly dispersed graphene sheets in the nanocomposite drastically enhanced the electronic conductivity and allowed the electrochemical activity of the polymer cathode to be efficiently utilized. This allows for ultrafast charging and discharging; the composite can deliver more than 100 mAh/g within just a few seconds.

引用

页码：2205 / 2211

页数：7

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