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Deposition and characterization of thin films of materials with application in cathodes for lithium rechargeable micro batteries; Deposito y caracterizacion de peliculas delgadas de materiales con aplicacion en catodos para microbaterias recargables de litio

Abstract

In this thesis work is reported the deposition and characterization of thin films of materials of the type LiMO{sub 2}, with M=Co and Ni, which have application in cathodes for micro-batteries of lithium ions. In the last years some investigators have reported that the electrochemical operation of the lithium ions batteries it can improve recovering the cathode, in bundle form, with some metal oxides as the Al{sub 2}O{sub 3}; for that the study of the formation of thin films in bilayer form LiMO{sub 2}/AI{sub 2}O{sub 3} is of interest in the development of lithium ions micro batteries. The thin films were deposited using the laser ablation technique studying the effect of some deposit parameters in the properties of the one formed material, as: laser fluence, substrate temperature and working atmosphere, with the purpose of optimizing it. In the case of the LiCoO{sub 2} it was found that to use an inert atmosphere of argon allows to obtain the material with the correct composition. Additionally, with the use of a temperature in the substrate of 150 C is possible to obtain to the material with certain crystallinity grade that to the subjected being to a post-deposit thermal treatment at 300 C  More>>
Authors:
Lopez I, J [1] 
  1. UAEM, Facultad de Quimica, 50000 Toluca, Estado de Mexico (Mexico)
Publication Date:
Jul 01, 2007
Product Type:
Thesis/Dissertation
Report Number:
INIS-MX-2307
Resource Relation:
Other Information: TH: Thesis (M. in Materials Sci.)
Subject:
36 MATERIALS SCIENCE; ABLATION; ABSORPTION SPECTROSCOPY; ARGON; CATHODES; CHEMICAL COMPOSITION; CHEMICAL PREPARATION; CRYSTAL STRUCTURE; DEPOSITION; DIAGRAMS; ELECTRIC BATTERIES; ELECTRIC POTENTIAL; ELECTRICAL PROPERTIES; EQUATIONS; EXPERIMENTAL DATA; IMAGES; LASERS; LITHIUM; LITHIUM IONS; LITHIUM OXIDES; MORPHOLOGY; NICKEL; RAMAN SPECTROSCOPY; SCANNING ELECTRON MICROSCOPY; SPECTRA; SPECTROSCOPY; SUBSTRATES; TARGETS; THIN FILMS; X-RAY DIFFRACTION
OSTI ID:
20935604
Research Organizations:
Instituto Nacional de Investigaciones Nucleares, 52045 Ocoyoacac, Estado de Mexico (Mexico)
Country of Origin:
Mexico
Language:
Spanish
Other Identifying Numbers:
TRN: MX0700372093097
Availability:
Available from INIS in electronic form
Submitting Site:
MXN
Size:
105 pages
Announcement Date:
Nov 22, 2007

Citation Formats

Lopez I, J. Deposition and characterization of thin films of materials with application in cathodes for lithium rechargeable micro batteries; Deposito y caracterizacion de peliculas delgadas de materiales con aplicacion en catodos para microbaterias recargables de litio. Mexico: N. p., 2007. Web.
Lopez I, J. Deposition and characterization of thin films of materials with application in cathodes for lithium rechargeable micro batteries; Deposito y caracterizacion de peliculas delgadas de materiales con aplicacion en catodos para microbaterias recargables de litio. Mexico.
Lopez I, J. 2007. "Deposition and characterization of thin films of materials with application in cathodes for lithium rechargeable micro batteries; Deposito y caracterizacion de peliculas delgadas de materiales con aplicacion en catodos para microbaterias recargables de litio." Mexico.
@misc{etde_20935604,
title = {Deposition and characterization of thin films of materials with application in cathodes for lithium rechargeable micro batteries; Deposito y caracterizacion de peliculas delgadas de materiales con aplicacion en catodos para microbaterias recargables de litio}
author = {Lopez I, J}
abstractNote = {In this thesis work is reported the deposition and characterization of thin films of materials of the type LiMO{sub 2}, with M=Co and Ni, which have application in cathodes for micro-batteries of lithium ions. In the last years some investigators have reported that the electrochemical operation of the lithium ions batteries it can improve recovering the cathode, in bundle form, with some metal oxides as the Al{sub 2}O{sub 3}; for that the study of the formation of thin films in bilayer form LiMO{sub 2}/AI{sub 2}O{sub 3} is of interest in the development of lithium ions micro batteries. The thin films were deposited using the laser ablation technique studying the effect of some deposit parameters in the properties of the one formed material, as: laser fluence, substrate temperature and working atmosphere, with the purpose of optimizing it. In the case of the LiCoO{sub 2} it was found that to use an inert atmosphere of argon allows to obtain the material with the correct composition. Additionally, with the use of a temperature in the substrate of 150 C is possible to obtain to the material with certain crystallinity grade that to the subjected being to a post-deposit thermal treatment at 300 C for three hours, it gives as result a totally crystalline material. In the case of the thin films of LiNiO{sub 2}, it was necessary to synthesize the oxide starting from a reaction of solid state among nickel oxide (NiO) and lithium oxide (Li{sub 2}O) obtaining stoichiometric LiNiO{sub 2}. For the formation of the thin films of LiNiO{sub 2} it was used an argon atmosphere and the laser fluence was varied, the deposits were carried out to two different substrates temperatures, atmosphere and 160 C. In both cases the material it was recovered with an alumina layer, found that this layer didn't modify the structural properties of the base oxide (LiCoO{sub 2} and LiNiO{sub 2}). (Author)}
place = {Mexico}
year = {2007}
month = {Jul}
}