| dc.creator | Ortiz, Mariela | |
| dc.creator | Real, Silvia | |
| dc.creator | Castro, Élida Beatriz | |
| dc.date | 2017-11-24T15:10:34Z | |
| dc.date | 2017-11-24T15:10:34Z | |
| dc.date | 2013-09-08 | |
| dc.date.accessioned | 2023-08-31T13:56:45Z | |
| dc.date.available | 2023-08-31T13:56:45Z | |
| dc.identifier | http://hdl.handle.net/20.500.12272/2448 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8544970 | |
| dc.description | Alkaline secondary batteries are widely required in the current market of electronic devices. Particularly, nickel hydroxide active material is the positive electrode in Ni/H2 and Ni/MH batteries. Due to their semiconductor nature, it becomes necessary to solve this limitation. A poor electrical contact yields ohmic overpotential and capacity loss at high currents. The carbon nanotubes (CNT) employed as additive was first studied by Lvetal.[1] who found that the addition of NTC may improve battery performance at high download speeds. However, discussions about the way that CNT affect structural and kinetic parameters are still acking.
In this work, the addition of multiwall carbon nanotubes (MWCNT) is investigated. The active material was prepared by hydrothermal synthesis method. The characterization was performed by optical (SEM, TEM, XRD) and electrochemical techniques (charge‐discharge cycles, cyclic voltammetry, electrochemical impedance spectroscopy ‐ EIS). The EIS technique along with a physicochemical model developed in the laboratory, are powerful tools for the estimation of physicochemical and structural parameter such as: specific active area, effective conductivity and diffusion coefficient of H+[2]. This knowledge allows electrochemical performance optimization of the systems. | |
| dc.description | Fil: Ortiz, Mariela. UTN (Universidad Tecnológica Nacional); Argentina. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; Argentina | |
| dc.description | Fil: Real; Silvia. UTN (Universidad Tecnológica Nacional); Argentina. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; Argentina | |
| dc.description | Fil: Castro, Élida Beatriz. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas) CONICET; Argentina | |
| dc.description | Peer Reviewed | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Anual Meeting of ISE | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | Atribución (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. | |
| dc.subject | electrochemical characterization; nickel hydroxide; electrodes; MWCNT | |
| dc.title | Electrochemical characterization of Nickel Hydroxide electrodes with MWCNT | |
| dc.type | info:eu-repo/semantics/conferenceObject | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.type | docunento de conferencia | |
