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Issue 6, 2009
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Chemically oxidized γ-MnO2 for lithium secondary batteries: structure and intercalation/deintercalation properties

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Abstract

Structural changes of chemically lithiated γ-MnO2 during chemical oxidation were characterized by X-ray diffraction combined with a stacking fault analysis and neutron total scattering with a local structure analysis. Lithium ions intercalate into the crystallographic sites around “Ruetschi” protons prior to those around “Coleman” protons for the chemically lithiated γ-MnO2. The “Ruetschi” and “Coleman” protons have O–H bond lengths of 1.2 Å and 1.9 Å, respectively, which decreased after the chemical oxidation. The chemically intercalated lithium ions are placed at the center of oxygen octahedra with an O–Li length of 1.9 Å.

Graphical abstract: Chemically oxidized γ-MnO2 for lithium secondary batteries: structure and intercalation/deintercalation properties

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Publication details

The article was received on 24 Jul 2008, accepted on 25 Sep 2008 and first published on 06 Jan 2009


Article type: Paper
DOI: 10.1039/B812683F
Citation: J. Mater. Chem., 2009,19, 800-806
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    Chemically oxidized γ-MnO2 for lithium secondary batteries: structure and intercalation/deintercalation properties

    W. I. Jung, M. Nagao, C. Pitteloud, K. Itoh, A. Yamada and R. Kanno, J. Mater. Chem., 2009, 19, 800
    DOI: 10.1039/B812683F

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