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Artykuły w czasopismach na temat "Batteries aux métaux liquides"
Kedi, Atolé Brice Bienvenu, Seka Simplice Kouassi, Vamoussa Coulibaly i Joseph Sei. "Elimination de polluants des déchets liquides d’une unité de production de sucre par des argiles naturelles de Côte d’Ivoire". International Journal of Biological and Chemical Sciences 15, nr 2 (23.06.2021): 803–15. http://dx.doi.org/10.4314/ijbcs.v15i2.31.
Pełny tekst źródłaRozprawy doktorskie na temat "Batteries aux métaux liquides"
Gras, Matthieu. "Recyclage de métaux venant d'accumulateurs NiMH : développement d'extractions liquide-liquide sélectives à partir de liquides ioniques". Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAI053/document.
Pełny tekst źródłaNickel-metal hydride (NiMH) batteries are currently dominating the market of energy storage in hybrid electric vehicles. 1 billion cells are estimated to be produced each year. In their end-of-life, these electronical wastes exhibit low recycling rates, despite the fact that NiMH batteries contain high amounts of valuable and strategic metals. Two main metal families coexist as an intermetallic compound in negative electrodes: transition metals (TM) (Ni, Co, Mn and Fe) and rare earth elements (REE) (La, Ce, Nd and Pr). Among TM, cobalt exhibits the highest criticality rate. Indeed, natural ores will not cover the increasing cobalt demand linked to emerging technologies. REE produced at more than 97 % in China are at the centre of European Union’s preoccupations. To tackle economic and environmental issues, this project, supported by the labex CEMAM is a partnership between the company Recupyl® and the academic laboratory LEPMI. It aims at investigating on low environmental impact routes for the recycling of metals present in real spent NiMH batteries. This requires the replacement of volatile organic compounds by ionic liquids, respecting the principles of ‘green chemistry’. Based on innovative extraction and recovery processes of elements by hydrometallurgy and electrochemistry, we propose a flowsheet for the valorisation of metals from those batteries
Hiremath, Anupam Mahantayya. "Τheοretical study οf thermal cοnvectiοn in a liquid metal battery : Linear stability analysis". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMLH33.
Pełny tekst źródłaRapid developments in harnessing the natural sources of energy has lead to a strong demand of efficient energy storage techniques. Among the proposed systems, liquid metal battery (LMB) is a novel system of energy proposed to store the electrical outputs from intermittent sources of energy such as wind energy, solar energy, etc.,LMBs are composed of liquid alkali metals in top electrode, molten salts as electrolyte and alloys as bottom electrode. These liquids are immiscible and super imposed in a stable density stratification. With the application of current across the battery, several physico-chemical phenomena occurs. The objective of this thesis consists in the investigations of thermal convection induced due to Joule's volumetric heating in the electrolyte.Initial study has been done on a single layer with volumetric heating subject to different thermal and kinematic boundary conditions. Later a horizontal magnetic field has been applied to detect its effects on the critical parameters of thermal convection.Equations governing thermal convection induced by Joule heating in the whole battery have been formulated together with the boundary conditions including the interfaces. A numerical code has been developed to solve these equations. These thresholds are found to depend on the ratio of fluid properties of electrodes to those of the electrolyte. The variation of the ratio of electrodes thicknesses to that of the electrolyte leads to a new mode of thermal instability in the upper electrode for very large thickness. The effect of heat exchange of the battery with its ambient environment is to destabilize the conduction state and to facilitate thermal convection. Joule heating in the electrolyte can affect the interfacial tension at both the interfaces and induce thermocapillary (Marangoni) convection, threshold of which depends on the ratio of the electrodes thicknesses. In shallow electrolytes, thermoconvection can appear in the upper electrode before it occurs in the electrolyte. An applied external magnetic field along the horizontal plane increases the threshold of thermal convection elongates the convection cells. All the modes of thermal convection induced by Joule heating are stationary
Pickaert, Guillaume. "Nouvelles oligopyridines fonctionnalisées : Application aux cristaux liquides". Université Louis Pasteur (Strasbourg) (1971-2008), 2003. https://publication-theses.unistra.fr/public/theses_doctorat/2003/PICKAERT_Guillaume_2003.pdf.
Pełny tekst źródłaNigon, Marc. "Une analyse critique de la méthode des pseudopotentiels appliquée aux métaux polyvalents et à leurs alliages binaires". Paris 12, 2002. http://www.theses.fr/2002PA120065.
Pełny tekst źródłaThis work is a critical analysis of the pseudopotential method applied to the determination of the interatomic structure of liquid polyvalent metals. We particularly used Bachelet, Hamann and Schlüter (BHS) and Shaw model potentials with the following problematical : is it an elaborated potential model which allow to satisfactorily represent the structure of different polyvalent metals and their alloys ? Our analysis suggests a further notice. For this reason, it seems to be reasonable to leave the "universal" first principles potential idea without any adjustable parameter. Consequently we preferred build an "hybrid" model potential having parameters directly optimised to the pure polyvalent metal structure. This work shows that such "hybrid" model compared to first principles models improves agreement between calculated structure and experimental data
Kwamou, Kouayep Bertrand Mirador. "Synthèse et caractérisation électrochimique de liquides ioniques à base de phosphonium pour les applications aux batteries au lithium". Mémoire, Université de Sherbrooke, 2014. http://hdl.handle.net/11143/5884.
Pełny tekst źródłaDo, Phuong Lien. "Etude de l'ordre local par simulation numérique : application aux liquides de métaux de transition et à leurs alliages". Grenoble INPG, 1993. http://www.theses.fr/1993INPG0164.
Pełny tekst źródłaPillin, Béatrice. "Utilisation des champs magnétiques intenses pour la séparation d'inclusions : application aux particules solides immergées dans les métaux liquides". Grenoble INPG, 1997. http://www.theses.fr/1997INPG0017.
Pełny tekst źródłaParant, Hélène. "Le concept d'électrodes liquides de carbone appliqué au domaine des batteries en flux : étude et application aux matériaux d'intercalation du lithium". Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0726/document.
Pełny tekst źródłaThis project deals with flow batteries, which are very promising technologies for large scale energy storage, especially for intermittent energies. This work aims at developing new types of electrolytes with carbon particles to enhance power of batteries. This concept is called "liquid electrode" and is implemented in flow batteries with redox lithium intercalation particles in aqueous media. The first objective is to formulate the carbon electrolyte, with a good electronic conductivity (1-4 mS/cm) and a reasonable viscosity. A compromise is reached thanks to the study of the mixing procedure and the carbon type. Conductivity is also studied by impedance spectroscopy and in flow to visualize the strength of the carbon network. The electrolytes are then, tested in a ferrocyanide/iodine millifluidic battery. The conversion of the soluble species is compared with a modelisation. A particular attention is paid to the effect of the flow and the kinetic on the battery intensity. Finally, these carbon electrolytes are used in a particles-based flow battery. For example, a battery LiFePO4{MnO2 demonstrates in flow, an intensity recovery between 5 et 30 mA{cm2 which is around 10 to 100 times higher than values reported in literature
Brunel, Alan. "Propriétés thermodynamiques et thermophysiques des liquides à haute température : applications aux combustibles nucléaires". Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS426.
Pełny tekst źródłaDuring a severe accident involving the meltdown of the core of a pressurized water nuclear reactor, the nuclear fuel will react with the zircalloy cladding around it and the structural materials of the core to make a high temperature magma called corium. Depending on its composition and its temperature, the corium can stratify because of two non-miscible metallic and oxidic liquids. For some stratification configurations, the heat flow can focus on the vessel’s wall, threatening its integrity with a corium flowing outside of it. The aim of this thesis is to collect thermodynamic and thermophysic data on a prototypical corium, the U-Zr-Fe-O system. The thermodynamic data collected in this thesis are related to the definition of the liquid miscibility gap and the compositions of the liquids in the U-Zr-Fe-O system and its sub-systems, depending on the composition and the temperature. Compositions of interest were selected after performing thermodynamic calculation by the CALPHAD method with the TAF-ID V13 database. The corresponding samples underwent heat treatments and post-treatment analyses to measure the compositions of the liquids and to compare them to thermodynamic calculations. An iron rich liquid miscibility gap and a zirconium rich one were highlighted in the Fe-Zr-O system. Although calculations were in agreement with data from the first miscibility gap at 1990 °C, measurements in the zirconium rich miscibility gap at 2420 °C and 2650 °C reveal an underestimation of the zirconium quantity in the metallic liquid and its overestimation in the oxidic liquid by the model. Studies on the UO2-Zr-Fe system at 2423 °C show that the liquid miscibility gap definition and the compositions of the liquids depend on the quantity of iron in the system, the U/Zr ratio and corium oxidation degree. Furthermore, the zirconium molar fraction is underestimated by the model in the metallic liquid to the benefit of iron, and is overestimated in the oxidic liquid. Finally, the oxygen solubility in the metallic liquid is underestimated by the model. Thermophysic data were collected thanks to the improvement of the ATTILHA experimental setup, allowing the study of oxygen sensitive or radioactive liquids at high temperature by using a laser heating. Experimental values on liquidus and eutectic transformation temperatures of the oxygen-rich domain of the Zr-O system were acquired with this setup. Furthermore, the development of the aerodynamic levitation allows us the investigation liquids’densities for the Zr-Fe2O3 and the Zr-UO2 systems between 1884 °C and 2268 °C for different zirconium molar fractions. Densities of liquids from the Zr-Fe2O3 system were used to refine surface tension values acquired on the VITI-MBP setup at CEA Cadarache. These values confirmed the surfacting properties of the oxygen on these liquids. The experimental data collected during this thesis will be used to feed the databases and to improve the forecast of the corium’s behavior during a severe accident
Taty-Costodes, Victorien Christian. "Adsorption des métaux lourds cadmium (II) et plomb (II) par la sciure de pin sylvestre : application aux traitements des effluents liquides industriels". Paris 6, 2003. http://www.theses.fr/2003PA066314.
Pełny tekst źródłaCzęści książek na temat "Batteries aux métaux liquides"
KOMABA, Shinichi, i Kei KUBOTA. "NaMO2 lamellaires à l’électrode positive". W Les batteries Na-ion, 9–59. ISTE Group, 2021. http://dx.doi.org/10.51926/iste.9013.ch1.
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