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author:

Fang Gui-Huang (Fang Gui-Huang.) [1] | Wu Mao-Xiang (Wu Mao-Xiang.) [2] | Wang Wen-Guo (Wang Wen-Guo.) [3] | Li Ren-Fu (Li Ren-Fu.) [4] | Pan Ying (Pan Ying.) [5]

Indexed by:

SCIE CSCD

Abstract:

Properties of two LiFePO4/C composites With low carbon content synthesized from precursors dried by spray drying and blast drying are investigated by scanning electron microscopy, X-ray diffraction, Raman spectroscopy and electrochemical measurements. The two samples have a different morphology and particle size, while the structure of LiFePO4 is unaffected. The LiFePO4/C composite prepared from the precursor dried by blast drying has a much lower surface resistance and a much better rate capability because the deposited carbon is more graphite-like and more conductive. The cycling performance is also much better for the LiFePO4/C composite prepared from the precursor dried by blast drying because only a slight impedance growth is involved upon cycling. These results suggest that the precursor drying process has a significant impact on the properties of LiFePO4/C composite, and its effect is highly dependent on the carbon content.

Keyword:

cathode drying LiFePO4 lithium ion batteries precursor

Community:

  • [ 1 ] [Fang Gui-Huang]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
  • [ 2 ] [Wu Mao-Xiang]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
  • [ 3 ] [Wang Wen-Guo]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
  • [ 4 ] [Li Ren-Fu]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
  • [ 5 ] [Pan Ying]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
  • [ 6 ] [Fang Gui-Huang]Fuzhou Univ, Dept Chem, Fuzhou 350002, Peoples R China

Reprint 's Address:

  • [Wu Mao-Xiang]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China

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Source :

CHINESE JOURNAL OF STRUCTURAL CHEMISTRY

ISSN: 0254-5861

CN: 35-1112/TQ

Year: 2013

Issue: 2

Volume: 32

Page: 273-281

0 . 4 7 7

JCR@2013

5 . 9 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:4

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: 5

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