title: Structural engineering for high energy and voltage output supercapacitors.
abstract: High capacitance and high output voltage are two important research focuses of electrochemical supercapacitors. Herein we present two novel designs (laminated and tandem) of coin-cell supercapacitors based on a textile coated with active material. The fabric electrodes were prepared by dipping the non-woven cloth into a dispersion of carbon nanotubes and subsequent MnO2 electrodeposition. In the lamination configuration, several pieces of active-material-coated cloth were laminated to construct individual electrodes that enable fold-increased areal capacitances and excellent cycling stability. In the tandem structure, individual cells with solid-state electrolyte (polyvinyl alcohol/H3PO4) sandwiched between the fabric electrodes were stacked together to form a single device. The assembled device composed by ten unit cells was demonstrated to drive four LED digital screens in series with 10 V output.
authors.affiliation: Wuhan National Laboratory for Optoelectronics and College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Xu
authors.forename: Hui
authors.initials: H
authors.lastname: Wu
authors.forename: Chen
authors.initials: C
authors.lastname: Xu
authors.forename: Hongtao
authors.initials: H
authors.lastname: Huang
authors.forename: Linfeng
authors.initials: L
authors.lastname: Lu
authors.forename: Guqiao
authors.initials: G
authors.lastname: Ding
authors.forename: Huili
authors.initials: H
authors.lastname: Wang
authors.forename: Dongfang
authors.initials: D
authors.lastname: Liu
authors.forename: Guozhen
authors.initials: G
authors.lastname: Shen
authors.forename: Dongdong
authors.initials: D
authors.lastname: Li
authors.forename: Xiaoyuan
authors.initials: X
authors.lastname: Chen