Waterproof, Ultrahigh Areal-Capacitance, Wearable Supercapacitor Fabrics

Yu Yang, Qiyao Huang, Liyong Niu, Dongrui Wang, Casey Yan, Yiyi She, Zijian Zheng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

334 Citations (Scopus)


KGaA, Weinheim High-performance supercapacitors (SCs) are promising energy storage devices to meet the pressing demand for future wearable applications. Because the surface area of a human body is limited to 2 m2, the key challenge in this field is how to realize a high areal capacitance for SCs, while achieving rapid charging, good capacitive retention, flexibility, and waterproofing. To address this challenge, low-cost materials are used including multiwall carbon nanotube (MWCNT), reduced graphene oxide (RGO), and metallic textiles to fabricate composite fabric electrodes, in which MWCNT and RGO are alternatively vacuum-filtrated directly onto Ni-coated cotton fabrics. The composite fabric electrodes display typical electrical double layer capacitor behavior, and reach an ultrahigh areal capacitance up to 6.2 F cm−2at a high areal current density of 20 mA cm−2. All-solid-state fabric-type SC devices made with the composite fabric electrodes and water-repellent treatment can reach record-breaking performance of 2.7 F cm−2at 20 mA cm−2at the first charge–discharge cycle, 3.2 F cm−2after 10 000 charge–discharge cycles, zero capacitive decay after 10 000 bending tests, and 10 h continuous underwater operation. The SC devices are easy to assemble into tandem structures and integrate into garments by simple sewing.
Original languageEnglish
Article number1606679
JournalAdvanced Materials
Issue number19
Publication statusPublished - 17 May 2017


  • electronic textiles
  • energy storage
  • polymer-assisted metal deposition
  • supercapacitor
  • wearable electronics

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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