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author:

Han, Lijing (Han, Lijing.) [1] | Wei, Qiaohua (Wei, Qiaohua.) [2] (Scholars:魏巧华) | Chen, Huimin (Chen, Huimin.) [3] | Tang, Jing (Tang, Jing.) [4] (Scholars:汤儆) | Wei, Mingdeng (Wei, Mingdeng.) [5] (Scholars:魏明灯)

Indexed by:

EI SCIE

Abstract:

The Hybrid nanoparticles of GeO2/C have been fabricated by decomposition of open-framework germanate compounds GeO2-ethylenediamine (GeO2-EDA) built up from Ge-O clusters, and delivers a superior Listorage capacity of 984.2 mA h g & minus;1 at a rate of 0.2 A g & minus;1. In addition, a remarkable cycling performance with a capacity of 891.4 mA h g & minus;1 has been obtained after 600 cycles for GeO2/C nanocomposite at a current density of 1 A g & minus;1. Furthermore, the full cell with a commercial LiFePO4 cathode shows a capacity retention of 86% (339.4 W h kg-1) over 100 cycles. The brilliant electrochemical properties of GeO2/C nanocomposite in terms of the desirable capacity, outstanding cycling stability, and superb rate performance is due to the following factors: (i) the electrical conductivity of GeO2 has been enhanced significantly by carbon layer coating; (ii) GeO2/C nanocomposite with a porous structure can buffer the severe volume changes; and (iii) GeO2 nanoparticles can shorten the diffusion distance of lithium ions. As a result, the GeO2/C nanocomposite exhibited an excellent electrochemical performance as an anode in LIBs. (c) 2021 Published by Elsevier B.V.

Keyword:

Anode material C nanocomposite Electrochemical properties GeO2 Lithium-ion battery

Community:

  • [ 1 ] [Han, Lijing]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350116, Fujian, Peoples R China
  • [ 2 ] [Wei, Qiaohua]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350116, Fujian, Peoples R China
  • [ 3 ] [Chen, Huimin]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350116, Fujian, Peoples R China
  • [ 4 ] [Wei, Mingdeng]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350116, Fujian, Peoples R China
  • [ 5 ] [Han, Lijing]Fuzhou Univ, Key Lab Analyt Sci Food Safety & Biol, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Minist Educ, Fuzhou 350116, Fujian, Peoples R China
  • [ 6 ] [Wei, Qiaohua]Fuzhou Univ, Key Lab Analyt Sci Food Safety & Biol, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Minist Educ, Fuzhou 350116, Fujian, Peoples R China
  • [ 7 ] [Tang, Jing]Fuzhou Univ, Key Lab Analyt Sci Food Safety & Biol, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Minist Educ, Fuzhou 350116, Fujian, Peoples R China

Reprint 's Address:

  • 汤儆 魏明灯

    [Wei, Mingdeng]Fuzhou Univ, Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350116, Fujian, Peoples R China;;[Tang, Jing]Fuzhou Univ, Key Lab Analyt Sci Food Safety & Biol, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Minist Educ, Fuzhou 350116, Fujian, Peoples R China

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Source :

JOURNAL OF ALLOYS AND COMPOUNDS

ISSN: 0925-8388

Year: 2021

Volume: 881

6 . 3 7 1

JCR@2021

5 . 8 0 0

JCR@2023

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:142

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 15

SCOPUS Cited Count: 16

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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