Graphene based integrated tandem supercapacitors fabricated directly on separators

Wei Chen, Chuan Xia, Husam N. Alshareef

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

It is of great importance to fabricate integrated supercapacitors with extended operation voltages as high energy density storage devices. In this work, we develop a novel direct electrode deposition on separator (DEDS) process to fabricate graphene based integrated tandem supercapacitors for the first time. The DEDS process generates compact graphene-polyaniline electrodes directly on the separators to form integrated supercapacitors. The integrated graphene-polyaniline tandem supercapacitors demonstrate ultrahigh volumetric energy density of 52.5 Wh L^(−1) at power density of 6037 W L^(−1) and excellent gravimetric energy density of 26.1 Wh kg^(−1) at power density of 3002 W kg^(−1) with outstanding electrochemical stability for over 10000 cycles. This study show great promises for the future development of integrated energy storage devices.
Original languageEnglish (US)
Pages (from-to)1-8
Number of pages8
JournalNano Energy
Volume15
DOIs
StatePublished - Apr 11 2015

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

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