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Electrochemical studies of few-layered graphene as an anode material for Li ion batteries

Few-layered graphene (FLG) with specific surface area of only ~8.2 m 2  g −1 was synthesized from graphene oxide (GO) using microwave-assisted exfoliation. GO was prepared using modified Hummers method. Few-layered nature of the exfoliated material was confirmed by electron microscopy, X-ray and ele... Full description

Journal Title: Journal of Solid State Electrochemistry 2014, Vol.18(4), pp.941-949
Main Author: Petnikota, Shaikshavali
Other Authors: Rotte, Naresh , Srikanth, Vadali , Kota, Bhanu , Reddy, M. , Loh, Kian , Chowdari, B.
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 1432-8488 ; E-ISSN: 1433-0768 ; DOI: 10.1007/s10008-013-2338-2
Link: http://dx.doi.org/10.1007/s10008-013-2338-2
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recordid: springer_jour10.1007/s10008-013-2338-2
title: Electrochemical studies of few-layered graphene as an anode material for Li ion batteries
format: Article
creator:
  • Petnikota, Shaikshavali
  • Rotte, Naresh
  • Srikanth, Vadali
  • Kota, Bhanu
  • Reddy, M.
  • Loh, Kian
  • Chowdari, B.
subjects:
  • Graphene
  • Anode
  • Li ion battery
  • Surface area
  • Reversible capacity
ispartof: Journal of Solid State Electrochemistry, 2014, Vol.18(4), pp.941-949
description: Few-layered graphene (FLG) with specific surface area of only ~8.2 m 2  g −1 was synthesized from graphene oxide (GO) using microwave-assisted exfoliation. GO was prepared using modified Hummers method. Few-layered nature of the exfoliated material was confirmed by electron microscopy, X-ray and electron diffraction, and Raman spectroscopy. Coin cells were fabricated using FLG as an anode and lithium metal as a counter electrode. The cells were tested using cyclic voltammetry and galvanostatic cycling techniques. FLG showed reversible capacity values of ~400 and ~250 mAh g −1 at current rates of 0.1 and 1 C, respectively. Columbic efficiency was more than 98 % while cycle to cycle capacity fading was less than 2 %. Maximum discharge or charging capacity was below 0.3 V, a preferable characteristic for achieving ideal anodic behavior.
language: eng
source:
identifier: ISSN: 1432-8488 ; E-ISSN: 1433-0768 ; DOI: 10.1007/s10008-013-2338-2
fulltext: fulltext
issn:
  • 1433-0768
  • 14330768
  • 1432-8488
  • 14328488
url: Link


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titleElectrochemical studies of few-layered graphene as an anode material for Li ion batteries
creatorPetnikota, Shaikshavali ; Rotte, Naresh ; Srikanth, Vadali ; Kota, Bhanu ; Reddy, M. ; Loh, Kian ; Chowdari, B.
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subjectGraphene ; Anode ; Li ion battery ; Surface area ; Reversible capacity
descriptionFew-layered graphene (FLG) with specific surface area of only ~8.2 m 2  g −1 was synthesized from graphene oxide (GO) using microwave-assisted exfoliation. GO was prepared using modified Hummers method. Few-layered nature of the exfoliated material was confirmed by electron microscopy, X-ray and electron diffraction, and Raman spectroscopy. Coin cells were fabricated using FLG as an anode and lithium metal as a counter electrode. The cells were tested using cyclic voltammetry and galvanostatic cycling techniques. FLG showed reversible capacity values of ~400 and ~250 mAh g −1 at current rates of 0.1 and 1 C, respectively. Columbic efficiency was more than 98 % while cycle to cycle capacity fading was less than 2 %. Maximum discharge or charging capacity was below 0.3 V, a preferable characteristic for achieving ideal anodic behavior.
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titleElectrochemical studies of few-layered graphene as an anode material for Li ion batteries
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abstractFew-layered graphene (FLG) with specific surface area of only ~8.2 m 2  g −1 was synthesized from graphene oxide (GO) using microwave-assisted exfoliation. GO was prepared using modified Hummers method. Few-layered nature of the exfoliated material was confirmed by electron microscopy, X-ray and electron diffraction, and Raman spectroscopy. Coin cells were fabricated using FLG as an anode and lithium metal as a counter electrode. The cells were tested using cyclic voltammetry and galvanostatic cycling techniques. FLG showed reversible capacity values of ~400 and ~250 mAh g −1 at current rates of 0.1 and 1 C, respectively. Columbic efficiency was more than 98 % while cycle to cycle capacity fading was less than 2 %. Maximum discharge or charging capacity was below 0.3 V, a preferable characteristic for achieving ideal anodic behavior.
copBerlin/Heidelberg
pubSpringer Berlin Heidelberg
doi10.1007/s10008-013-2338-2
pages941-949