Preparation of Layered MnO2 via Thermal Decomposition of KMnO4 and Its Electrochemical Characterizations

We report here the preparation of layered MnO2 and the preliminary results on its cathodic performance in Li secondary batteries. The thermal decomposition of KMnO4 powder at 250−1000 °C in air produces K x MnO2+ δ·yH2O (x = 0.27−0.31, δ = 0.07−0.13, and y = 0.47−0.89) with a product yield of 67−79%...

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Veröffentlicht in:	Chemistry of materials 1999-03, Vol.11 (3), p.557-563
Hauptverfasser:	Kim, Sa Heum, Kim, Sung Jin, Oh, Seung M
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences 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
Online-Zugang:	Volltext
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