Listing 1 - 10 of 14 | << page >> |
Sort by
|
Choose an application
Introduction : Les batteries lithium-ion sont présentes dans la majorité de nos appareils Ces batteries contiennent des particules micrométriques contenant du Li et peuvent représenter un risque respiratoire, principalement pour les travailleurs. Peu d'études ayant été réalisées sur la toxicité pulmonaire du Li ou des particules de Li, nous avons évalué l'éventuelle toxicité pulmonaire de 3 particules couramment utilisées (LiFeP04 ou LFP, Li4Tis012 ou LTO, et LiCoO², ou LCO). Méthodes: Les particules de Li ont été caractérisées par diffraction laser, impacteur en cascade d'Andersen, powder tap density, microscopie électronique à balayage couplée à la spectroscopie à énergie dispersive {SEM/EDX) et par spectrométrie de masse à plasma à couplage inductif (ICP-MS). Des souris C57BL/6 ont été exposées par aspiration oro-pharyngée au LFP, LTO et LCO, à un sel de lithium soluble (LiCI) et à des particules de silice cristalline (contrôle positif). L'inflammation aiguë a été analysée après 18 h et 3 j, l'inflammation sub-chronique et la fibrose 2 m après l'exposition. La sécrétion d'interleukine (IL) -1j3 a été mesurée par méthode immuno-enzymatique dans le fluide des lavages broncho-alvéolaires ainsi que dans le surnageant de macrophages en culture exposés aux particules de Li. L'implication de /'/ L-1j3 dans la toxicité pulmonaire des particules a été investiguée avec des souris / L-1j3 déficientes. La bio accessibilité des éléments constitutifs et la bio persistance des particules ainsi que leur localisation pulmonaire ont respectivement été déterminées par /CP-MS et SEM/EDX.Résultats: La caractérisation des particules de Li a montré que les poudres contenaient une fraction de particules fines pouvant être inhalées. Des réponses inflammatoires ont été observées dans les poumons de_ souris 18 h et 3 j après exposition aux particules de Li mais pas au LiCI. La sécrétion de cytokines pro-inflammatoires, comme l'IL-1j3, a été augmentée après administration des particules. Après 2 m, de l'inflammation pulmonaire a également été observée chez les souris LFP et LCO. Le dosage du collagène pulmonaire et les analyses histologiques ont révélé la présence de fibrose uniquement dans les poumons des souris LCO. ln vitro, nous avons montré que les particules de Li et le LiCI induisent une augmentation de sécrétion d'IL-1j3 par les macrophages. L'inflammation pulmonaire était significativement réduite chez les souris IL-1j3 déficientes exposées au LFP et au LCO, tant dis que la fibrose observée avec le LCO n'était pas modifiée. L'analyse de la solubilisation des particules de Li a montré que le relargage des ions tels que le u+, le Fe'+ et le Co3+ est dépendant du pH et différent selon les particules. Des éléments constitutifs des particules de Li ont été détectés dans les poumons des souris après 2 m par SEM/EDX et du fer endogène a été co-localisé avec le Co dans les poumons des souris LCO (corps ferrugineux).Conclusions: Nous rapportons pour la première fois la différence de toxicité pulmonaire des particules de Li utilisées dans les batteries et concluons qu'elles peuvent représenter un danger si elles sont inhalées. Nous avons observé que les particules de Li, principalement le LFP et le LCO, peuvent déclencher des réactions inflammatoires, et que seul le LCO induit une réponse fibrotique. Nos résultats indiquent que l'IL-1j3 joue un rôle dans l'inflammation induite par le LFP et le LCO et suggèrent que le contenu en Li, Fe et Co des particules, ainsi que la formation de corps ferrugineux identifiés dans les poumons des souris LCO, pourraient participer à leur toxicité. Background: Lithium-ion batteries are found in most of our portable electronics and have a great potential for developing spray-paintable batteries. Micrometric U-containing particles are used in U ion batteries and may represent a health risk, mainly for workers via inhalation. Because the toxicity of lithium or Li-particles has been poorly investigated, we evaluated the possible lung toxicity of 3 types of commonly used Li-particles (LiFePo. or LFP, LI4.Ti5012 or LTO, and UCoO² or LCO). Methods: Particles were characterized by laser diffraction, Andersen cascade impactor, powder tap density, scanning electron microscopy/energy dispersive X-ray spectrometry (SEM/EDX) and inductively coupled plasma mass spectrometry (
Choose an application
Addresses the methodology and theoretical foundation of battery manufacturing, service and management systems (BM 2S 2), and discusses the issues and challenges in these areas This book brings together experts in the field to highlight the cutting edge research advances in BM 2S 2 and to promote an innovative integrated research framework responding to the challenges. There are three major parts included in this book: manufacturing, service, and management. The first part focuses on battery manufacturing systems, including modeling, analysis, design and control, as well as economic and risk analyses. The second part focuses on information technology's impact on service systems, such as data-driven reliability modeling, failure prognosis, and service decision making methodologies for battery services. The third part addresses battery management systems (BMS) for control and optimization of battery cells, operations, and hybrid storage systems to ensure overall performance and safety, as well as EV management. The contributors consist of experts from universities, industry research centers, and government agency. In addition, this book: . Provides comprehensive overviews of lithium-ion battery and battery electrical vehicle manufacturing, as well as economic returns and government support. Introduces integrated models for quality propagation and productivity improvement, as well as indicators for bottleneck identification and mitigation in battery manufacturing. Covers models and diagnosis algorithms for battery SOC and SOH estimation, data-driven prognosis algorithms for predicting the remaining useful life (RUL) of battery SOC and SOH. Presents mathematical models and novel structure of battery equalizers in battery management systems (BMS). Reviews the state of the art of battery, supercapacitor, and battery-supercapacitor hybrid energy storage systems (HESSs) for advanced electric vehicle applications Advances in Battery Manufacturing, Services, and Management Systems is written for researchers and engineers working on battery manufacturing, service, operations, logistics, and management. It can also serve as a reference for senior undergraduate and graduate students interested in BM 2S 2.
Electric batteries. --- Storage batteries. --- Lithium ion batteries.
Choose an application
The Li-ion battery technology could help to accelerate the transition towards renewable energy sources. In the manufacturing chain, the electrode processing by slot die coating is one of the most crucial steps. Increased line speeds and reduced scrap rates could help decrease these costs. The scope of this work is therefore the scientific elaboration of the process limits of single and subdivided, simultaneous coated multilayer films, a minimizing of edge effects and intermittent coatings.
process windows --- coating --- lithium-ion batteries --- Dünnfilmtechnik --- Prozessfenster --- thin film technology --- Beschichtung --- Schlitzguss --- Lithium-ionen BatterienSlot die
Choose an application
Fracture of storage particles is considered to be one of the major reasons for capacity fade and increasing power loss in Li-ion batteries. In this work, we tackle the problem by merging a coupled model of mechanical stress and diffusion of Li-ions with a phase field description of an evolving crack. The novel approach allows us to study the evolution of the Li concentration together with the initiation and growth of a crack in an arbitrary geometry and without presuming a specific crack path.
Lithium-Diffusion --- Lithium-Ionen-BatterienCrack Growth --- Storage Particles --- Risswachstum --- Phasefield --- Li-Diffusion --- Phasenfeld --- Li-Ion-Batteries --- Speicherpartikel
Choose an application
This book covers selected topics in different aspects of science and technology of alkali-ion batteries written by experts from international scientific community. Through the 9 chapters, the reader will have access to the most recent research and development findings on alkali-ion batteries through original research studies and literature reviews. This book covers inter-disciplinary aspects of alkali-ion batteries including new progress on material chemistry, micro/nano structural designs, computational and theoretical models and understanding of structural changes during electrochemical processes of alkali-ion batteries.
Alkali metals. --- Lithium ions. --- Alkali metal ions --- Light metals --- Semi-conductors & super-conductors
Choose an application
Conversion-type electrodes are promising electrode materials for future lithium ion batteries since they exhibit high specific capacities compared to intercalation-type eclectrodes. In this work, a thermodynamic approach was used to elucidate the electrochemical behavior of conversion-type electrodes using Li-Cu-O and Li-Fe-O as model material systems. electrochemical properties can be calculated using self-sonstistent thermodynamic descriptions developed in this work.
Thermochemielithium ion battery --- Lithium-Ionen-Batterie --- thermische Analyse --- conversion-type electrodes --- Konversionselektroden --- CALPHAD --- thermochemistry --- thermal analysis
Choose an application
The book focuses on the solid-state physics, chemistry and electrochemistry that are needed to grasp the technology of and research on high-power Lithium batteries. After an exposition of fundamentals of lithium batteries, it includes experimental techniques used to characterize electrode materials, and a comprehensive analysis of the structural, physical, and chemical properties necessary to insure quality control in production. The different properties specific to each component of the batteries are discussed in order to offer manufacturers the capability to choose which kind of battery should be used: which compromise between power and energy density and which compromise between energy and safety should be made, and for which cycling life. Although attention is primarily on electrode materials since they are paramount in terms of battery performance and cost, different electrolytes are also reviewed in the context of safety concerns and in relation to the solid-electrolyte interface. Separators are also reviewed in light of safety issues. The book is intended not only for scientists and graduate students working on batteries but also for engineers and technologists who want to acquire a sound grounding in the fundamentals of battery science arising from the interaction of electrochemistry, solid state materials science, surfaces and interfaces.
Mechanical Engineering - General --- Mechanical Engineering --- Engineering & Applied Sciences --- Lithium ion batteries. --- Lithium cells. --- Storage batteries. --- Accumulator batteries --- Accumulators, Electric --- Batteries, Storage --- Rechargeable batteries --- Secondary batteries --- Batteries, Lithium --- Cells, Lithium --- Cells, Lithium ion --- Electrochemical cells, Lithium ion --- LIBs (Lithium ion batteries) --- Li-ion batteries --- Lithium ion cells --- Lithium ion electrochemical cells --- Electric apparatus and appliances --- Electric power supplies to apparatus --- Electric batteries --- Storage batteries --- Chemistry. --- Surfaces (Physics). --- Nanotechnology. --- Energy Storage. --- Electrochemistry. --- Characterization and Evaluation of Materials. --- Solid State Physics. --- Molecular technology --- Nanoscale technology --- High technology --- Physics --- Surface chemistry --- Surfaces (Technology) --- Physical sciences --- Energy storage. --- Materials science. --- Solid state physics. --- Solids --- Material science --- Chemistry, Physical and theoretical --- Storage of energy --- Force and energy --- Power (Mechanics) --- Flywheels --- Pulsed power systems
Choose an application
The aim of this book is to review innovative physical multiscale modeling methods which numerically simulate the structure and properties of electrochemical devices for energy storage and conversion. Written by world-class experts in the field, it revisits concepts, methodologies and approaches connecting ab initio with micro-, meso- and macro-scale modeling of components and cells. It also discusses the major scientific challenges of this field, such as that of lithium-ion batteries. This book demonstrates how fuel cells and batteries can be brought together to take advantage of well-established multi-scale physical modeling methodologies to advance research in this area. This book also highlights promising capabilities of such approaches for inexpensive virtual experimentation. In recent years, electrochemical systems such as polymer electrolyte membrane fuel cells, solid oxide fuel cells, water electrolyzers, lithium-ion batteries and supercapacitors have attracted much attention due to their potential for clean energy conversion and as storage devices. This has resulted in tremendous technological progress, such as the development of new electrolytes and new engineering designs of electrode structures. However, these technologies do not yet possess all the necessary characteristics, especially in terms of cost and durability, to compete within the most attractive markets. Physical multiscale modeling approaches bridge the gap between materials’ atomistic and structural properties and the macroscopic behavior of a device. They play a crucial role in optimizing the materials and operation in real-life conditions, thereby enabling enhanced cell performance and durability at a reduced cost. This book provides a valuable resource for researchers, engineers and students interested in physical modelling, numerical simulation, electrochemistry and theoretical chemistry.
Thermodynamics --- Electrochemistry --- Relation between energy and economics --- Electrical engineering --- Applied physical engineering --- brandstofcellen --- thermodynamica --- energie-economie --- elektrische netwerken --- lithium-ion batterijen --- energie (technologie) --- elektrolyten --- polymeren --- elektrochemie --- elektriciteitsdistributie
Choose an application
This book is a practical, up-to-date guide to the correct use of lithium for the short- and long-term treatment of mood disorders. Among the subjects addressed are the pharmacology and mechanisms of action of lithium, its use for maintenance treatment, the role of lithium in the treatment of mania and depression and in suicide prevention, further clinical indications, the administration of lithium during pregnancy and the postpartum period, and adverse effects and their management. Relevant background information is provided on the diagnosis, classification, and natural course of mood disorders, and an overview of other treatments for bipolar disorder and major depression is included. Lithium is the essential medication for patients with mood disorders. The evidence of its efficacy in maintenance treatment is acknowledged in all major international treatment guidelines for bipolar disorders and, when used correctly, lithium unquestionably produces the most dramatic benefits of any medication in psychopharmacology. This essential guide is written by two international experts in the treatment of mood disorders who have more than 25 years of experience in the use of lithium and have authored numerous scientific articles on lithium. .
Medicine. --- Psychopharmacology. --- Pharmacotherapy. --- Clinical psychology. --- Medicine & Public Health. --- Clinical Psychology. --- Lithium --- Therapeutic use. --- Psychology, clinical. --- Behavioral pharmacology --- Drugs --- Chemotherapy --- Pharmacology --- Psychotropic drugs --- Psychotropic effects --- Psychiatry --- Psychology, Applied --- Psychological tests --- Drug therapy --- Pharmacotherapy --- Therapeutics
Choose an application
This work summarizes the historical progression of the field of lithium (Li) isotope studies and provides a comprehensive yet succinct overview of the research applications toward which they have been directed. In synthesizing the historical and current research, the volume also suggests prospective future directions of study. Not even a full decade has passed since the publication of a broadly inclusive summary of Li isotope research around the globe (Tomascak, 2004). In this short time, the use of this isotope system in the investigation of geo- and cosmochemical questions has increased dramatically, due, in part, to the advent of new analytical technology at the end of the last millennium. Lithium, as a light element that forms low-charge, moderate-sized ions, manifests a number of chemical properties that make its stable isotope system useful in a wide array of geo- and cosmochemical research fields. .
Dynamic & Structural Geology --- Geology --- Earth & Environmental Sciences --- Lithium --- Isotope geology. --- Geochemistry. --- Isotopes. --- Chemical composition of the earth --- Chemical geology --- Geological chemistry --- Geology, Chemical --- Isotope geochemistry --- Nuclear geochemistry --- Nuclear geology --- Nuclear geophysics --- Stable isotope geology --- Chemistry --- Earth sciences --- Physical geology
Listing 1 - 10 of 14 | << page >> |
Sort by
|