Defects in nsutite (γ-MnO2) and dry-cell battery efficiency

Shirley Turner; P R Buseck

doi:10.1038/304143a0

Defects in nsutite (γ-MnO₂) and dry-cell battery efficiency

Shirley Turner, P R Buseck

Earth and Space Exploration, School of (SESE)

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87 Scopus citations

Abstract

Nsutite is a major manganese oxide that occurs in mineable quantities in several terrestrial localities¹ and has also been reported to occur in manganese nodules². It has industrial importance^3,4 since the intergrowth mineral and its synthetic analogue (γ-MnO ₂) are used as the cathodic material in dry-cell batteries. The effectiveness of the material in batteries varies widely, and the physical cause of this variation is poorly understood. Structure imaging by high-resolution transmission electron microscopy (HRTEM) reported here reveals a variety of new structures and defects that may control battery efficiency by allowing increased diffusion rates.

Original language	English (US)
Pages (from-to)	143-146
Number of pages	4
Journal	Nature
Volume	304
Issue number	5922
DOIs	https://doi.org/10.1038/304143a0
State	Published - 1983

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abstract = "Nsutite is a major manganese oxide that occurs in mineable quantities in several terrestrial localities1 and has also been reported to occur in manganese nodules2. It has industrial importance3,4 since the intergrowth mineral and its synthetic analogue (γ-MnO 2) are used as the cathodic material in dry-cell batteries. The effectiveness of the material in batteries varies widely, and the physical cause of this variation is poorly understood. Structure imaging by high-resolution transmission electron microscopy (HRTEM) reported here reveals a variety of new structures and defects that may control battery efficiency by allowing increased diffusion rates.",

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AB - Nsutite is a major manganese oxide that occurs in mineable quantities in several terrestrial localities1 and has also been reported to occur in manganese nodules2. It has industrial importance3,4 since the intergrowth mineral and its synthetic analogue (γ-MnO 2) are used as the cathodic material in dry-cell batteries. The effectiveness of the material in batteries varies widely, and the physical cause of this variation is poorly understood. Structure imaging by high-resolution transmission electron microscopy (HRTEM) reported here reveals a variety of new structures and defects that may control battery efficiency by allowing increased diffusion rates.

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Defects in nsutite (γ-MnO₂) and dry-cell battery efficiency

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