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Electrochemical lithium insertion into a manganese dioxide electrode in aqueous solutions
Conference paper   Open access

Electrochemical lithium insertion into a manganese dioxide electrode in aqueous solutions

M. Minakshi, P. Singh, T.B. Issa, S. Thurgate, K. Prince and D. Mitchell
World Scientific Publishing Co.
10th Annual Asian Conference on Solid State Ionics (Kandy, Sri Lanka, 12/06/2006–16/06/2006)
2006
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Abstract

Intercalation of lithium into the vacant sites of a host compound can be achieved electrochemically using non-aqueous electrolytes. The use of aqueous electrolyte is less common because of the reactivity of many lithium intercalation compounds with water. Here we propose that lithium could be intercalated using aqueous solutions, lithium hydroxide as the electrolyte. The X-ray photoelectron spectroscopy (SIMS) data on the discharged material indicate that lithium is intercalated into the host structure of EMD without the destruction of its core structure. A significant improvement on cell performance was obtained by adding small amounts (<3 wt%) of titanium disulphide (TiS2) to the cathode.

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