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dc.creatorOrtiz, Mariela
dc.creatorVisintin, Arnaldo
dc.creatorReal, Silvia
dc.date.accessioned2017-11-29T14:54:28Z
dc.date.available2017-11-29T14:54:28Z
dc.date.issued2017-03-19
dc.identifier.urihttp://hdl.handle.net/123456789/2472
dc.description.abstractNowadays, rechargeable batteries with higher energy density are required for our society due to the needs of cleaner and more efficient energy systems and with the objective of supplying the increasing technological demands. Commercial lithium batteries are systems based on intercalation compounds able to delivering specific energies about 150-200 WhKg-1, one-third of their theoretical energy ( ≈ 600 Wh kg-1). It is difficult for the reversible capacity of these intercalation compounds to be increased, thus the need to explore new cathodes formed by lighter materials and involving electrochemical reactions of more than one electron. An element satisfying these conditions is sulfur (with a theoretical capacity of 1675 mAhg-1 and a specific energy of 2600 WhKg-1). The lithium-sulfur battery has been investigated by different groups in past decades; however, there are serious drawbacks, which have not been overcome yet, so it limits the practical development of this system [3]. Moreover, sulfur is much more abundant, inexpensive, and non-toxic compared to the transition-metal oxide cathodes. We present here the preparation of composites with carbon and sulfur materials in a single fabrication process: using S2C as the solvent. The characterization of the prepared material was performed using optical techniques (X-ray diffraction, scanning electron microscopy and transmission) and its electrochemical performance in lithium-sulfur batteries was studied using electrochemical techniques such as: charge-discharge cycles, galvanostatic discharges to different currents and cyclic voltammetry. The prepared composite materials delivered higher capacities in the first cycles (≈800 mAhg-1) and then it were stabilized at values around 60% of the initial capacity. Also, carbon electrochemical response was not observed, so its main function is to act effectively as an electron-conducting and support matrix.es_ES
dc.formatapplication/pdf
dc.language.isoenges_ES
dc.publisherTopical Meeting of the International Society of Electrochemistryes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectelectrochemical performance; Carbon; Sulfur; Lithium; battery cathodeses_ES
dc.titleElectrochemical performance of Carbon Sulfur as Lithium Sulfur battery cathodeses_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.description.affiliationOrtiz, Mariela. UTN (Universidad Tecnológica Nacional); Argentina. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; Argentinaes_ES
dc.description.affiliationVisintin, Arnaldo. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; Argentinaes_ES
dc.description.affiliationReal, Silvia. UTN (Universidad Tecnológica Nacional); Argentina. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; Argentinaes_ES
dc.description.peerreviewedPeer Reviewedes_ES
dc.type.versioninfo:eu-repo/semantics/publisherVersiones_ES
dc.type.snrddocunento de conferenciaes_ES
dc.rights.useAtribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.es_ES


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