Publication

New generation of rechargeable zinc-air batteries

Christos Comninellis
1996
Conference Papers

Abstract

For the development of an elec. rechargeable zinc/air battery, La0.6Ca0.4CoO3-catalyzed (perovskite) bifunctional oxygen electrodes and pasted zinc electrodes were prepd. and tested in a monopolar zinc/oxygen cell. In addn., a bipolar Zn/oxygen stack was tested using reticulated copper foam as substrate for the zinc deposit. The cells were cycled in moderately alk. ZnO-satd. electrolytes with KF as an electrolyte additive. The max. power as well as the cycle life of the cells was investigated. The microstructure and the performance of the electrodes before and after cycling were studied exptl. using phys. (mercury porosimetry), electrochem. and imaging (x-ray photog.) techniques. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/c5cdb061-f7e6-416a-9679-6333d8dee4df

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Christos Comninellis
1996
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/c5cdb061-f7e6-416a-9679-6333d8dee4df

About this result

Related concepts (29)

Electric battery

A battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons that will flow through an external electric circuit to the positive terminal. When a battery is connected to an external electric load, a redox reaction converts high-energy reactants to lower-energy products, and the free-energy difference is delivered to the external circuit as electrical energy.

Rechargeable battery

A rechargeable battery, storage battery, or secondary cell (formally a type of energy accumulator), is a type of electrical battery which can be charged, discharged into a load, and recharged many times, as opposed to a disposable or primary battery, which is supplied fully charged and discarded after use. It is composed of one or more electrochemical cells. The term "accumulator" is used as it accumulates and stores energy through a reversible electrochemical reaction.

Flow battery

A flow battery, or redox flow battery (after reduction–oxidation), is a type of electrochemical cell where chemical energy is provided by two chemical components dissolved in liquids that are pumped through the system on separate sides of a membrane. Ion transfer inside the cell (accompanied by flow of electric current through an external circuit) occurs through the membrane while both liquids circulate in their own respective space. Cell voltage is chemically determined by the Nernst equation and ranges, in practical applications, from 1.

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New generation of rechargeable zinc-air batteries

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