Structural Characterization of Mn-Based Materials Using γ-MnOOH Source
- 1 January 2002
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 5 (1), A1-A4
- https://doi.org/10.1149/1.1419702
Abstract
And materials were synthesized using LiOH, and different Mn sources and γ-MnOOH). X-ray diffraction (XRD) showed that all prepared materials had identical crystalline phase (cubic, Two materials using the source exhibited different cycling characteristics depending on the cycling voltage range. However, the two materials using the γ-MnOOH source showed an identical cycling performance in both the 3 and 4 V regions. Transmission electron microscope analysis revealed that the materials using γ-MnOOH consisted of two kinds of structures of cubic and tetragonal in the resulting powders although they were shown as a pure cubic spinel structure in the XRD diagram. This indicated a more stable state for the two Mn-based materials using γ-MnOOH when the transformation from the cubic to tetragonal phase occurred in the 3 V region. © 2001 The Electrochemical Society. All rights reserved.Keywords
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