Lithium intercalation behavior of surface modified carbonaceous materials

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Description

The surface properties of several well-characterized commercial carbon materials were modified by thermal and chemical treatments. The reversible capacities for lithium intercalation of a sponge green coke and a fuel green coke for lithium intercalation increased by as much as 25% after heat treatment in both reducing (5% H{sub 2}/Ar) and oxidizing (CO{sub 2}) environments. The irreversible capacity loss increased significantly with CO{sub 2} treatment at 800{degrees}C. The trend of larger capacity losses with CO{sub 2} treatment is also observed with a synthetic graphite (SFG6) which was produced by heat treatment at about 3000{degrees}C. Carbon fibers that were first impregnated ... continued below

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14 p.

Creation Information

Tran, T. D.; Murguia, L. X.; Song, X. & Kinoshita, K. July 17, 1997.

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Description

The surface properties of several well-characterized commercial carbon materials were modified by thermal and chemical treatments. The reversible capacities for lithium intercalation of a sponge green coke and a fuel green coke for lithium intercalation increased by as much as 25% after heat treatment in both reducing (5% H{sub 2}/Ar) and oxidizing (CO{sub 2}) environments. The irreversible capacity loss increased significantly with CO{sub 2} treatment at 800{degrees}C. The trend of larger capacity losses with CO{sub 2} treatment is also observed with a synthetic graphite (SFG6) which was produced by heat treatment at about 3000{degrees}C. Carbon fibers that were first impregnated with LiOH solution followed by reaction with CO{sub 2} to form Li{sub 2}CO{sub 3} tended to show lower irreversible capacity losses.

Physical Description

14 p.

Notes

OSTI as DE98052083

Other: FDE: PDF; PL:

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  • 192. meeting of the Electrochemical Society and 48. annual meeting of the International Society of Electrochemistry, Paris (France), 31 Aug - 5 Sep 1997

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  • Other: DE98052083
  • Report No.: UCRL-JC--128153
  • Report No.: CONF-970805--
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/611780 | External Link
  • Office of Scientific & Technical Information Report Number: 611780
  • Archival Resource Key: ark:/67531/metadc693782

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  • July 17, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • April 10, 2017, 1:39 p.m.

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Tran, T. D.; Murguia, L. X.; Song, X. & Kinoshita, K. Lithium intercalation behavior of surface modified carbonaceous materials, report, July 17, 1997; California. (digital.library.unt.edu/ark:/67531/metadc693782/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.