Synthesis and characterization of materials for rechargeable lithium micro-batteries



Título del documento: Synthesis and characterization of materials for rechargeable lithium micro-batteries
Revista: Superficies y vacío
Base de datos: PERIÓDICA
Número de sistema: 000405031
ISSN: 1665-3521
Autores: 1
1
2
3
Instituciones: 1Universidad Autónoma Metropolitana, Departamento de Física, Iztapalapa, Distrito Federal. México
2Instituto Nacional de Investigaciones Nucleares, Departamento de Física, México, Distrito Federal. México
3Universite Pierre et Marie Curie, Laboratoire des Milieux Desordonnes et Heterogenes, París. Francia
Año:
Periodo: Mar
Volumen: 17
Número: 1
Paginación: 7-12
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico
Resumen en inglés Pulsed laser deposition was used to grow LiCoO2 and LiMn2O4 thin films. Crystalline thin films were deposited on silicon at low substrate temperature (300 o C) using an oxygen pressure of 50 mTorr for LiCoO2 and 100 mTorr for LiMn2O4. The structure of these thin film materials was characterized by X-ray diffraction and Raman spectroscopy. The influence of target composition on the stoichiometry of the films was analyzed. Obtained polycrystalline LiCoO2 and LiMn2O4 thin films were used as cathode materials in lithium micro-batteries. Electrochemical measurements have been performed in both Li//LiCoO2 and Li//LiMn2O4 thin film cells. These cells were tested by the galvanostatic charge-discharge technique. Specific capacities as high as 195 and 120 mC/cm2 µm were achieved using LiCoO2 and LiMn2O4 thin films, respectively
Disciplinas: Física y astronomía,
Ingeniería
Palabras clave: Física de materia condensada,
Ingeniería de materiales,
Películas delgadas,
Litio,
Cobalto,
Manganeso,
Depósito por láser pulsado,
Baterías de litio
Keyword: Physics and astronomy,
Engineering,
Condensed matter physics,
Materials engineering,
Thin films,
Lithium,
Cobalt,
Manganese,
Pulsed laser deposition,
Lithium batteries
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