Zn/MCM-41/MnO2 Leclanché Button Cell R2025 for Low Rate Applications

Nor Liza Mohd Zawi; Raihan Othman; Mohd Hanafi Ani

doi:10.4028/www.scientific.net/AMR.576.374

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 576Zn/MCM-41/MnO2 Leclanché Button Cell R2025 for Low...

Zn/MCM-41/MnO₂ Leclanché Button Cell R2025 for Low Rate Applications

Abstract:

The present work reports the performance characteristics of Zn/MnO2 Leclanché cell employing an inorganic MCM-41 membrane separator. MCM-41 material comprises of one-dimensional, hexagonally ordered silicates mesostructure. The main advantage of MCM-41 membrane is its 3-in-1 functional features, viz. as ionic exchange channels, insulating layer between electrodes and electrolyte reservoir. Zn/MnO2 cell is constructed approximately to the size of R2025 coin cell. As the fabrication technique of MCM-41 membrane is merely by dip-coating process, it offers two advantages. First, the membrane could be prepared sufficiently thin and thus minimizing the internal losses of the cell. Second, it enables the construction of bipolar cell configuration with ease. Consequently, the results obtained demonstrate the volumetric energy density of Zn/MCM-41/MnO2 R2025 button cell has been extended by almost fivefold from 5.6 Wh/l to 26 Wh/l as bipolar cell configuration is utilized.

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Periodical:

Advanced Materials Research (Volume 576)

Pages:

374-377

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.576.374

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Online since:

October 2012

Authors:

Nor Liza Mohd Zawi, Raihan Othman, Mohd Hanafi Ani

Keywords:

Bipolar Configuration, Inorganic Separator, Leclanché Cell, MCM-41 Membrane, Zn/MnO₂ Cell

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