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[期刊论文]

Synthesis and electrochemical properties of CaF 2-coated for long-cycling Li[Mn 1/3Co 1/3Ni 1/3]O 2 cathode materials

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author:

Xu, K. (Xu, K..) [1] | Jie, Z. (Jie, Z..) [2] | Li, R. (Li, R..) [3] | Unfold

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Scopus

Abstract:

Li[Mn 1/3Co 1/3Ni 1/3]O 2 cathode material for lithium ion batteries was coated by CaF 2 via wet coating strategy. The CaF 2-coated Li[Mn 1/3Co 1/3Ni 1/3]O 2 were analyzed by X-ray diffraction spectra (XRD), the scanning electron microscope (SEM) and energy dispersive X-ray analysis (EDAX) to confirm the structure and morphology of cathode material. Cyclic voltammetry and cycling charge-discharge measurements were carried out to study the electrochemical performance of bare and coated samples, as well as the optimal coating dosage. Comparison tests have found that the capacity retention is 67.9% for bare sample and 93.5% for 1.0 wt.% CaF 2-coated sample. In summary, the CaF 2 coating strategy benefits the cycling performance of Li[Mn 1/3Co 1/3Ni 1/3]O 2 cathode material, and the optimal dosage of coating agent is 1.0 wt.%. © 2011 Elsevier Ltd. All rights reserved.

Keyword:

CaF 2; Cathode; Li[Mn 1/3Co 1/3Ni 1/3]O 2; Lithium-ion battery; Surface coating

Community:

  • [ 1 ] [Xu, K.]College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China
  • [ 2 ] [Jie, Z.]College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China
  • [ 3 ] [Jie, Z.]Huizhou TARK-WIN Battery Co. Ltd., Guangdong 516057, China
  • [ 4 ] [Li, R.]College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China
  • [ 5 ] [Chen, Z.]State Kay Laboratory Breeding Base of Photocatalysis, Analysis and Test Center, Fuzhou University, Fuzhou 350002, China
  • [ 6 ] [Wu, S.]College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China
  • [ 7 ] [Gu, J.]College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China
  • [ 8 ] [Chen, J.]College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China

Reprint 's Address:

  • [Chen, J.]College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China

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Source :

Electrochimica Acta

ISSN: 0013-4686

Year: 2012

Volume: 60

Page: 130-133

3 . 7 7 7

JCR@2012

5 . 5 0 0

JCR@2023

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

30 Days PV: 0

Affiliated Colleges:

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