Superelastic Few-Layer Carbon Foam Made from Natural Cotton for All-Solid-State Electrochemical Capacitors

被引：17

作者：

Lin, Tianquan ^{[1
,2
]}

Liu, Fengxin ^{[1
,2
]}

Xu, Feng ^{[1
,2
]}

Bi, Hui ^{[1
,2
]}

Du, Yahui ^{[1
,2
]}

Tang, Yufeng ^{[1
,2
]}

Huang, Fuqiang ^{[1
,2
,3
,4
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China

[3] Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China

[4] Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2015年 / 7卷 / 45期

关键词：

superelastic materials; 3D few-layer carbon foam; electrochemical capacitors; all-solid-state; polyaniline; natural cotton; HIGH-PERFORMANCE; ENERGY-STORAGE; GRAPHENE; SUPERCAPACITORS; ELECTRODES; PSEUDOCAPACITANCE; EFFICIENT; NITROGEN; POWER;

D O I：

10.1021/acsami.5b07368

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Flexible/stretchable devices for energy storage are essential for future wearable and flexible electronics. Electrochemical capacitors (ECs) are an important technology for supplement batteries in the energy storage and harvesting field, but they are limited by relatively low energy density. Herein, we report a superelastic foam consisting of few-layer carbon nanowalls made from natural cotton as a good scaffold to growth conductive polymer polyaniline for stretchable, lightweight, and flexible all-solid-state ECs. As-prepared superelastic bulk tubular carbon foam (surface area similar to 950 m(2)/g) can withstand >90% repeated compression cycling and support >45,000 times its own weight but no damage. The flexible device has a high specific capacitance of 510 F g(-1), a specific energy of 25.5 Wh kg(-1) and a power density of 28.5 kW kg(-1) in weight of the total electrode materials and withstands 5,000 charging/discharging cycles.

引用

页码：25306 / 25312

页数：7

共 31 条

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