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The discharge reaction mechanism of the MoO3 electrode in organic electrolytes

✍ Scribed by J.O. Besenhard; R. Schöllhorn

Book ID
103899300
Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
439 KB
Volume
1
Category
Article
ISSN
0378-7753

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✦ Synopsis

Discharge and charge reactions of MoO3 electrodes in organic Li ÷ electrolytes are shown to be reversible topotactic redox processes of layered i + o xmolybdenum bronzes L x[M Os] . The kinetically accessible charge range amounts to 0.1 ~< x < 1.5 with the lower limit of x depending on the precedent cathodic load. Complete re-oxidation to the binary oxide is kinetically hindered presumably as a result of small structural changes. The process is strongly affected by the size of the electrolyte cation, whereas no dependence on the anion species was observed. Reduction beyond x = 1.5 is at least partially associated with irreversible changes in the oxide structure. Similar reactions were found for non-stoichiometric molybdenum oxides e.g. Mo18052 and Mo8023.

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