title: Superelastic Few-Layer Carbon Foam Made from Natural Cotton for All-Solid-State Electrochemical Capacitors.
abstract: 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 ∼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.
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure and CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China.
authors.forename: Tianquan
authors.initials: T
authors.lastname: Lin
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure and CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China.
authors.forename: Fengxin
authors.initials: F
authors.lastname: Liu
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure and CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China.
authors.forename: Feng
authors.initials: F
authors.lastname: Xu
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure and CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China.
authors.forename: Hui
authors.initials: H
authors.lastname: Bi
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure and CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China.
authors.forename: Yahui
authors.initials: Y
authors.lastname: Du
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure and CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China.
authors.forename: Yufeng
authors.initials: Y
authors.lastname: Tang
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure and CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China.|Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P. R. China.
authors.forename: Fuqiang
authors.initials: F
authors.lastname: Huang
keywords: 3D few-layer carbon foam; all-solid-state; electrochemical capacitors; natural cotton; polyaniline; superelastic materials