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Lithium insertion into manganese dioxide electrode in MnO2/Zn aqueous battery: Part II. Comparison of the behavior of EMD and battery grade MnO2 in Zn|MnO2|aqueous LiOH electrolyte
Journal article   Peer reviewed

Lithium insertion into manganese dioxide electrode in MnO2/Zn aqueous battery: Part II. Comparison of the behavior of EMD and battery grade MnO2 in Zn|MnO2|aqueous LiOH electrolyte

M. Minakshi, P. Singh, T.B. Issa, S. Thurgate and R. De Marco
Journal of Power Sources, Vol.138(1-2), pp.319-322
2004
DOI: https://doi.org/10.1016/j.jpowsour.2004.06.049
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Abstract

A comparative study of the cathodic behavior of electrolytic manganese dioxide (EMD) and chemically prepared battery grade manganese dioxide (BGM) in Zn|MnO2|aqueous lithium hydroxide (LiOH) cells has been carried out. The X-ray diffraction (XRD), infrared spectra (IR), thermo gravimetric analysis (TGA) and scanning electron microscope (SEM) investigations showed that the two materials had different phase compositions, water content and particle sizes. The cells with BGM had a higher open circuit voltage (OCV) and discharged at higher voltages as compared to those with EMD. The discharge capacity of BGM was lower compared to that of EMD. On discharge both the materials produced same phase i.e. lithium intercalated manganese dioxide (LixMnO2). This was also confirmed through X-ray photoelectron spectroscopy (XPS) investigation of the discharged products.

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Collaboration types
Domestic collaboration
Citation topics
2 Chemistry
2.62 Electrochemistry
2.62.52 Electrode Materials
Web Of Science research areas
Chemistry, Physical
Electrochemistry
Energy & Fuels
Materials Science, Multidisciplinary
ESI research areas
Materials Science
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