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Comparative Studies on Li/LiI-Li2WO4-Li3PO4/Metal Oxide Electrochemical Cells

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Abstract:

A series of experiment has been carried out to study the electrochemical performances of lithium primary cells using different cathode materials. The cathode material was made of metal oxide, electrolyte, activated carbon, and PVdF with a wt. ratio of 60: 20:10:10. PVdF was added as a binder. The metal oxides used are MnO2 and V2O5. The anode was made up of lithium metal and LiI-Li2WO4-Li3PO4 compound is used as an electrolyte. In this work the open circuit voltage (OCV) of Li/MnO2 and Li/V2O5 obtained is about 3.0 V and 3.2 V respectively. This shows that LiI-Li2WO4-Li3PO4 compound is lithium ion conductor. Lithium cell showed better performance at 100º C than at room temperature. Among these two types of cells investigated, cell Li/V2O5 worked better than the Li/MnO2 cell at room temperature and at 100°C as this cell exhibits the longest continuous discharge time and the highest OCV.

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Periodical:

Materials Science Forum (Volume 517)

Pages:

275-277

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.517.275

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Online since:

June 2006

Authors:

Azizah Hanom Ahmad, Ri Hanum Yahaya Subban, R. Zakaria, A.M.M. Ali

Keywords:

Discharge Characteristics, Electrochemical Cell, Lithium Ion Conductors, OCV, Solid Electrolyte

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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