Mn3O4/RGO/SWCNT hybrid film for all-solid-state flexible supercapacitor with high energy density

Jin He, Dong Yang, Huan Li, Xin Cao, Liping Kang, Xuexia He, Ruibin Jiang, Jie Sun, Zhibin Lei, Zong Huai Liu

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Mn3O4/reduced graphene oxide/single-walled carbon nanotube flexible hybrid film with outstanding flexibility and electrochemical performance is prepared via a vacuum filtration method. The three-dimensional interconnect structure is constructed by reduced graphene oxide and single-walled carbon nanotube, and Mn3O4 nanoplates with pesudocapacitance are embedded into the interconnect structure. The regular interconnect structure and a synergetic effect between graphene oxide/single-walled carbon nanotube and Mn3O4 make the Mn3O4/reduced graphene oxide/single-walled carbon nanotube flexible film electrode exhibit a large areal capacitance of 796 mF cm−2. All-solid-state Mn3O4/reduced graphene oxide/single-walled carbon nanotube flexible supercapacitor is prepared by using the hybrid film as electrodes and sandwiching the PVA–KOH gel electrolyte, it exhibits a large area specific capacitance of 360 mF cm−2 and the capacitance maintains 95% after 5000 charge/discharge cycles. The assembled supercapacitor exhibits both outstanding mechanical performance and a high areal energy density of 32 μW h cm−2 at an areal power density of 0.392 mW cm−2. The Mn3O4/reduced graphene oxide/single-walled carbon nanotube flexible supercapacitors exhibit significant potentiality in flexible and wearable electronics owing to their excellent flexibility, high energy density and long cycle life.

Original languageEnglish (US)
Pages (from-to)174-182
Number of pages9
JournalElectrochimica Acta
Volume283
DOIs
StatePublished - Sep 1 2018

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

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