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Studies of Zn/X-/Polyaniline Batteries:Part 2. X=I (Articolo in rivista)

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Label

Studies of Zn/X-/Polyaniline Batteries:Part 2. X=I (Articolo in rivista) (literal)

Anno

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Alternative label

Mengoli G.; Musiani M.M.; Pletcher D.; Valcher S. (1987)
Studies of Zn/X-/Polyaniline Batteries:Part 2. X=I
in Journal of Applied Electrochemistry
(literal)

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1,2 : Corso Stati Uniti, Istituto di Polarografia ed Elettrochimica Preparativa del CNR, Padova, 4-35100, Italy / 3 : Department of Chemistry, The University, Southampton, SO9 5NH, United Kingdom / 4 : Istituto Chimico G. Ciamician, Universitá di Bologna, via Selmi, Bologna, 2-40100, Italy (literal)

Titolo

Abstract

The characteristics of a Zn/ZnI2/polyaniline battery have been examined. It is demonstrated that the polymer has a charge storage capacity of 143 A h kg-~ and an energy efficiency above 70%. The battery has an open circuit voltage of 1.2 V and polarization during charges and discharges at 30-120mA were low. Self discharge is low compared to the chloride and bromide electrolyte batteries and charge recovery was 60% after 12 days stored on open circuit. It is shown that these promising characteristics may be interpreted in terms of a system where the polyaniline largely acts as a current collector and the I3-/I- couple is rapid within the film. The kinetics of the system are determined by a.c. impedance. (literal)

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