Carbons for battery anodes prepared using inorganic templates

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Unique carbons with demonstrated utility as anodes for lithium secondary batteries have been prepared by heating hydrocarbons within an inorganic template. Disordered carbons with novel and desirable molecular porosity were synthesized by the pyrolysis of pyrene at 700 C within a pillared clay. The clay was removed by treatment with acid, leaving behind carbons with 15 to 50 {angstrom} holes. These holey carbons, when converted into electrodes, allow rapid diffusion of the lithium into and out of a carbon. Favorable results have been obtained in several tests, for example, a reversible capacity of 825 mAh/g has been achieved, about four ... continued below

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3 p.

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Winans, R.E.; Carrado, K.A. & Sandi, G. July 1, 1997.

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Description

Unique carbons with demonstrated utility as anodes for lithium secondary batteries have been prepared by heating hydrocarbons within an inorganic template. Disordered carbons with novel and desirable molecular porosity were synthesized by the pyrolysis of pyrene at 700 C within a pillared clay. The clay was removed by treatment with acid, leaving behind carbons with 15 to 50 {angstrom} holes. These holey carbons, when converted into electrodes, allow rapid diffusion of the lithium into and out of a carbon. Favorable results have been obtained in several tests, for example, a reversible capacity of 825 mAh/g has been achieved, about four times greater than commercial batteries using convention pyrolytic carbon.

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3 p.

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OSTI as DE97007868

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  • Other Information: PBD: [1997]

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  • Other: DE97007868
  • Report No.: ANL/CHM/PP--87624
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/505278 | External Link
  • Office of Scientific & Technical Information Report Number: 505278
  • Archival Resource Key: ark:/67531/metadc698129

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Office of Scientific & Technical Information Technical Reports

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  • July 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Dec. 15, 2015, 12:10 p.m.

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Winans, R.E.; Carrado, K.A. & Sandi, G. Carbons for battery anodes prepared using inorganic templates, report, July 1, 1997; Illinois. (digital.library.unt.edu/ark:/67531/metadc698129/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.