Thermal Batteries
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Multiobjective and Multicase Optimization of a Spacecraft Radiator
ABSTRACT Optimization is now an established tool for obtaining better solutions in engineering design. Nevertheless, the multiplicity of possible applications and the continuing search for better computational performance has motivated researchers in continuing to propose new methods, as well as improvements on existing ones. Not only optimization has allowe
J. Aerosp. Technol. Manag.. Publicado em: 07/01/2019
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2. PAni-coated LiFePO4 Synthesized by a Low Temperature Solvothermal Method
The composite LiFePO4/polyaniline was prepared by chemical synthesis to promote the intensification of the electrochemical properties for use as cathodes in lithium ion batteries. The X-ray diffraction (XRD) of LiFePO4 synthesized by solvothermal method were indexed to the orthorhombic structure, according to the JCPDS 40-1499. The spectra Raman and FTIR sho
Mat. Res.. Publicado em: 03/12/2018
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3. Commitment Between Roughness and Crystallite Size in the Vanadium Oxide Thin Film opto-electrochemical Properties
The V2O5 thin films has been widely studied because it has application as ionic host in electrochromic and lithium-ion batteries, two technologies that have an intimate connection with sustainability as substitutes for fossil energies and as agents for improving energy efficiency. In electrochromic technology, V2O5 is applied as a passive electrode due to it
Mat. Res.. Publicado em: 01/11/2018
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4. APPLICATION OF THERMAL PLASMA FOR INERTIZATION OF SLUDGE PRODUCED DURING TREATMENT OF LANDFILL LEACHATE
One of the outstanding issues of concern by governments and society in general relates to the final destination of solid waste, which can bring severe impacts on social, political, economic and environmental dimensions. The sustainable development of enterprises and industries goes for the care of the planet, thus ensuring the quality of life for future gene
Quím. Nova. Publicado em: 2016-09
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5. Fabrication of Cathode Materials Based on Limn2o4/Cnt and Lini0.5mn1.5o4/Cnt Nanocomposites for Lithium – Ion Batteries Application
AbstractCarbon nanotubes (CNTs) are a promising candidate material for use in lithium batteries due to 1D tubular structure, high electrical, thermal conductivities, and extremely large surface area. In this work, the MWCNTs were purified by dispersion in a mixture of HNO3 and H2SO4acids. The oxidized-MWCNTs were used as conducting addition to prepare a nano
Mat. Res.. Publicado em: 2015-10
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6. Synthesis of Co-Al-Cl LDH by cathodic material reprocessing from cellular phone batteries
The aim of this paper was the recovering of the cathodic material from discarded lithium ion batteries for obtainment of the lamellar double hydroxides (LDHs) by the co-precipitation method at variable pH in HCl and H2O2 1:1 (v/v) acid solution containing Co and Al (extracted from cathodic material composed of LiCoO2 and aluminum foil). These metals were pre
Mat. Res.. Publicado em: 29/04/2014
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7. Síntese e estudo da atividade eletrocatalítica de óxidos de metais de transição e de nanopartículas de prata e ouro para a reação de redução de oxigênio / Synthesis and study of the electrocatalytic activity of transition metal oxides, and silver and gold nanoparticles for the oxygen reduction reaction
The oxygen reduction reaction (ORR) was studied on electrocatalysts composed by pure and mixed transition metal oxides of Mn, Co, and Ni, including spinel-like structures, and by Ag, Au, and Ag3M/C (M= Au, Pt, Pd e Cu) bimetallic nanoparticles, in alkaline electrolyte. The transition metal oxides were synthesized by thermal decomposition of their nitrates, a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2011
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8. SINTHESIS OF IRON DISULPHIDE FOR THERMAL BATTERIES APLICATION / SÍNTESE DE DISSULFETO DE FERRO PARA APLICAÇÃO EM PILHAS TÉRMICAS
A evolução tecnológica e a necessidade de fontes de energia cada vez mais eficientes e compactas alavancam os estudos eletroquímicos, no intuito de desenvolver fontes primárias e secundárias mais duráveis e que suportem uma maior carga de operação. Dentre as fontes eletroquímicas temos as primárias (pilhas) e as secundárias (baterias). A diferen�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/04/2011
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9. Preparação de vidros boratos dos sistemas 50B2O315PbO(35-x)Li2OxNa2O e 50B2O315PbO(35-x)LiFxNaF e determinação do efeito dos alcalinos mistos / Preparation of borate glasses from 50B2O315PbO(35-x)Li2OxNa2O and 50B2O315PbO(35-x)LiFxNaF systems and the evaluation of the mixed alkali effect
Different alkali glasses have been developed because exhibit a high ionic conductivity and can be used as solid electrolytes in the fabrication of devices such as batteries and chemical sensors. However, a deleterious effect emerges when two alkali ions are present in the same glassy matrix. The phenomenon, named of the mixed alkali effect (MAE), causes a no
Publicado em: 2010
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10. Solid polymer electrolytes based in sodium alginate. / Eletrólitos sólidos poliméricos a base de alginato de sódio
The aim of this study was the preparation and characterization of sodium alginate membranes plasticized with glycerol. The samples were obtained with different concentration of acetic acid or lithium perchlorate in order to use them as solid polymer electrolytes (SPE) in electrochemical devices, such as sensors and batteries. The films were characterized by
Publicado em: 2010
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11. Solidification microstructures and mechanical and corrosion resistances of dilute Pb-Sn alloys / Microestrutura de solidificação e resistencias mecanicas e a corrosão de ligas Pb-Sn diluidas
Lead-acid batteries manufacturers have modified the manufacturing processes and the chemical composition of alloys used in battery grids in order to decrease their weight as well as to reduce the production costs, and to increase the battery life-time cycle and the corrosion-resistance. The morphological microstructures characterized by cellular and dendriti
Publicado em: 2009
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12. CINÉTICA DO ELETRODO DE FES2 / FE EM SAIS FUNDIDOS / FES2 / FE ELECTRODE KINETICS IN MOLTEN SALTS
In this work the measurement of the critical kinetics parameters of iron disulphide electrochemical reduction in molten chloride halides mixture was made. This cathode is applied as alternative material in high technology systems, such as, solar energy collector`s components, anode depolariser for hydrogen production and cathodic materials for high energy de
Publicado em: 2005