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author:

Chen Long (Chen Long.) [1] | Liu Jing-Dong (Liu Jing-Dong.) [2] (Scholars:刘景东) | Zhang Shi-Qun (Zhang Shi-Qun.) [3]

Indexed by:

EI Scopus SCIE PKU CSCD

Abstract:

With the aim to obtain high performance cathode materials for lithium-sulfur batteries, composite of mesoporous carbon (MC) loaded with ZnS (ZnS/MC) was prepared through ultrasonic dispersion and heat treatment. The as-prepared composite was blended with elemental sulfur by heating, then cathode materials (ZnS/MC/S) was obtained. The ZnS/MC composite was characterized by XRD, SEM, EDS and N-2 adsorption-desorption isotherms. The results showed that ZnS particle was uniformly loaded to the surface of MC through ultrasonic dispersion when content of ZnS was less than 17wt%. ZnS nanoparticles aggregated to form sphalerite ZnS by heat treatment or increasing content of ZnS. Cyclic voltammetry test showed that ZnS accelerated the oxidation process of polysulfides. Charge/discharge tests indicated that the initial discharge specific capacity was 1354.6 mAh/g, while the coulombic efficiency of the first charge and discharge was 98.7%. The capacity still remained 650 mAh/g after 50 cycles.

Keyword:

cyclic performance lithium sulfur battery mesoporous carbon ultrasonic dispersion ZnS

Community:

  • [ 1 ] [Chen Long]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
  • [ 2 ] [Liu Jing-Dong]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
  • [ 3 ] [Zhang Shi-Qun]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China

Reprint 's Address:

  • 陈龙

    [Chen Long]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China

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Source :

JOURNAL OF INORGANIC MATERIALS

ISSN: 1000-324X

CN: 31-1363/TQ

Year: 2013

Issue: 10

Volume: 28

Page: 1127-1131

0 . 5 3 7

JCR@2013

1 . 7 0 0

JCR@2023

ESI Discipline: MATERIALS SCIENCE;

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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