High capacity carbon anode materials: Structure, hydrogen effect, and stability

The local structure of several disordered carbons, obtained from radial distribution function analysis of elastic neutron scattering data, consists of small isolated graphene fragments. The effect of residual hydrogen which presumably saturates the dangling bonds in low-temperature pyrolyzed materia...

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Bibliographic Details
Published in:Journal of power sources 1997-10, Vol.68 (2), p.296-300
Main Authors: Zhou, P., Papanek, P., Bindra, C., Lee, R., Fischer, J.E.
Format: Article
Language:English
Subjects:
Applied sciences
Carbon
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Exact sciences and technology
Intercalation
Neutron diffraction
X-ray diffraction
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Summary:The local structure of several disordered carbons, obtained from radial distribution function analysis of elastic neutron scattering data, consists of small isolated graphene fragments. The effect of residual hydrogen which presumably saturates the dangling bonds in low-temperature pyrolyzed materials was studied by inelastic neutron vibrational spectroscopy and computer modelling of lithiated polyaromatic hydrocarbons. We discuss the possibility of exploiting the high-pressure crystal phase LiC 2 in primary batteries, by demonstrating that trace boron substitition greatly enhances the (meta) stability of this phase at atmospheric pressure.
ISSN:0378-7753
1873-2755
DOI:10.1016/S0378-7753(96)02563-3