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

7 Citations (Scopus)

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

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Graphite
Single-walled carbon nanotubes (SWCN)
Oxides
Graphene
Capacitance
Flexible electronics
Electrodes
Electrolytes
Supercapacitor
manganese oxide
Life cycle
Gels
Vacuum

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

Cite this

He, Jin ; Yang, Dong ; Li, Huan ; Cao, Xin ; Kang, Liping ; He, Xuexia ; Jiang, Ruibin ; Sun, Jie ; Lei, Zhibin ; Liu, Zong Huai. / Mn3O4/RGO/SWCNT hybrid film for all-solid-state flexible supercapacitor with high energy density. In: Electrochimica Acta. 2018 ; Vol. 283. pp. 174-182.
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Mn3O4/RGO/SWCNT hybrid film for all-solid-state flexible supercapacitor with high energy density. / He, Jin; Yang, Dong; Li, Huan; Cao, Xin; Kang, Liping; He, Xuexia; Jiang, Ruibin; Sun, Jie; Lei, Zhibin; Liu, Zong Huai.

In: Electrochimica Acta, Vol. 283, 01.09.2018, p. 174-182.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Mn3O4/RGO/SWCNT hybrid film for all-solid-state flexible supercapacitor with high energy density

AU - He, Jin

AU - Yang, Dong

AU - Li, Huan

AU - Cao, Xin

AU - Kang, Liping

AU - He, Xuexia

AU - Jiang, Ruibin

AU - Sun, Jie

AU - Lei, Zhibin

AU - Liu, Zong Huai

PY - 2018/9/1

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N2 - 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.

AB - 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.

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