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Author:

Yang, Chenhui (Yang, Chenhui.) | Tang, Yi (Tang, Yi.) | Tian, Yapeng (Tian, Yapeng.) | Luo, Yangyang (Luo, Yangyang.) | He, Yucheng (He, Yucheng.) | Yin, Xingtian (Yin, Xingtian.) | Que, Wenxiu (Que, Wenxiu.)

Indexed by:

SCIE EI Scopus

Abstract:

The volumetric performance of supercapacitors (SCs), besides the gravimetric performance, is attracting an increasing attention due to the fast development of electric vehicles and smart devices. Here, a unique design of symmetric supercapacitor material is reported with a tight face-to-face architecture by applying a high pressure to the delaminated Ti3C2 (d-Ti3C2) films. The high pressure makes the d-Ti3C2 films achieve an increased density, high electron conductivity, good wettability, and abundant interconnected mesopore channels to promote ion transport efficiently, that is, more cations can intercalate/deintercalate in the charging-discharging process. As a result, with the increase of the applying pressure, the d-Ti3C2 film pressured at 40 MPa in 1 M Li2SO4 exhibits an ultrahigh capacitance of over 633 F cm(-3), outstanding energy density, and cyclic stability. Especially, the corresponding SC in 1 M 1-ethyl-3-methylimidazolium tetrafluoroborate/acetonitrile organic electrolyte shows a high volumetric energy density of 41 Wh L-1, which is the highest value reported for the SCs based on MXene materials in organic electrolytes. The outstanding volumetric electrochemical performance and thermal stability of the SCs based on the ultracompact d-Ti3C2 film demonstrate their promising potential as forceful power sources for small electronic devices.

Keyword:

2D materials high-pressure manufacturing MXene pressure supercapacitors volumetric energy density

Author Community:

  • [ 1 ] [Yang, Chenhui; Tang, Yi; Tian, Yapeng; Luo, Yangyang; He, Yucheng; Yin, Xingtian; Que, Wenxiu] Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ,Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China
  • [ 2 ] [Yang, Chenhui; Tang, Yi; Tian, Yapeng; Luo, Yangyang; He, Yucheng; Yin, Xingtian; Que, Wenxiu] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Int Ctr Dielect Res, Xian 710049, Shaanxi, Peoples R China
  • [ 3 ] [Yang, Chenhui]Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ,Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China
  • [ 4 ] [Tang, Yi]Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ,Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China
  • [ 5 ] [Tian, Yapeng]Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ,Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China
  • [ 6 ] [Luo, Yangyang]Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ,Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China
  • [ 7 ] [He, Yucheng]Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ,Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China
  • [ 8 ] [Yin, Xingtian]Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ,Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China
  • [ 9 ] [Que, Wenxiu]Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ,Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China
  • [ 10 ] [Yang, Chenhui]Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Int Ctr Dielect Res, Xian 710049, Shaanxi, Peoples R China
  • [ 11 ] [Tang, Yi]Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Int Ctr Dielect Res, Xian 710049, Shaanxi, Peoples R China
  • [ 12 ] [Tian, Yapeng]Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Int Ctr Dielect Res, Xian 710049, Shaanxi, Peoples R China
  • [ 13 ] [Luo, Yangyang]Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Int Ctr Dielect Res, Xian 710049, Shaanxi, Peoples R China
  • [ 14 ] [He, Yucheng]Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Int Ctr Dielect Res, Xian 710049, Shaanxi, Peoples R China
  • [ 15 ] [Yin, Xingtian]Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Int Ctr Dielect Res, Xian 710049, Shaanxi, Peoples R China
  • [ 16 ] [Que, Wenxiu]Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Int Ctr Dielect Res, Xian 710049, Shaanxi, Peoples R China

Reprint Author's Address:

  • Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ,Sch Elect & Informat Engn, Xian 710049, Shaanxi, Peoples R China.; Que, WX (reprint author), Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Int Ctr Dielect Res, Xian 710049, Shaanxi, Peoples R China.

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Source :

ADVANCED FUNCTIONAL MATERIALS

ISSN: 1616-301X

Year: 2018

Issue: 15

Volume: 28

1 5 . 6 2 1

JCR@2018

1 8 . 8 0 8

JCR@2020

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:182

JCR Journal Grade:4

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 103

SCOPUS Cited Count: 147

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 7

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