Download or read book Les batteries tout solide monolithiques written by Virginie Viallet and published by ISTE Group. This book was released on 2018-06-01 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Depuis les années 1990, les batteries Li-ion sont les systèmes de stockage d’énergie les plus utilisés. La demande en termes de performances et de sécurité étant sans cesse grandissante, les batteries commerciales actuelles à base d’électrolytes liquides ou gels risquent de ne pas réussir à satisfaire les besoins des applications émergentes : alimentation des véhicules électriques et hybrides, stockage des énergies renouvelables, etc. Il devient donc nécessaire de développer des technologies avancées de systèmes de stockage répondant aux caractéristiques industrielles telles que de grandes densités d’énergie, une longue durée de vie, un faible coût de production, peu ou pas de maintenance et une grande sécurité d’utilisation. Les batteries tout solide monolithiques présente cette technologie émergente de choix pour satisfaire à ces exigences. L’électrolyte au sein de la séparation entre les deux électrodes n’est plus liquide mais solide dans cette technologie.
Download or read book Batteries Li ion written by Didier Bloch and published by EDP Sciences. This book was released on 2022-10-25T00:00:00+02:00 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grâce à l’amélioration de leurs performances et la diminution de leur coût de fabrication, les accumulateurs au lithium initialement commercialisés en 1991 par SONY pour alimenter les équipements portables, jouent désormais un rôle-clef dans le développement massif attendu de la mobilité électrique. Connectées au réseau électrique via les véhicules électrifiés dans lesquels elles seront embarquées, les batteries au lithium seront de surcroît utilisées comme moyen massif de stockage tampon des énergies renouvelables, ainsi que comme outils de soutien au réseau (effacement des heures de pointe, régulation de fréquence...), permettant, au-delà de leur fonction première (assurer la mobilité du véhicule), de démultiplier leur utilité. Ces évolutions vont profondément transformer nos sociétés, et permettre non seulement de réduire très significativement les émissions de CO2 et la consommation d’énergies fossiles (pétrole, gaz, charbon), mais également, si elles sont conduites et coordonnées efficacement, de contribuer à la croissance économique. Le développement de la mobilité électrique offre ainsi une opportunité unique de faire coïncider des exigences légitimes de protection de l’environnement avec des objectifs de développement industriel. Cet ouvrage a pour objectif d’offrir au lecteur une vue d’ensemble des technologies d’accumulateurs au lithium, de fournir un état des lieux des initiatives en cours dans le monde, et de dresser quelques perspectives pour l’avenir. Chercheurs au CEA et au CNRS, les auteurs de cet ouvrage disposent, tous, d’une expertise fondée sur plusieurs années d’expérience dans le développement des filières d’accumulateurs au lithium et des filières post lithium-Ion, sur l’ensemble des éléments de la chaîne de la valeur, depuis le design et la synthèse des matériaux d’électrodes, jusqu’à l’intégration dans le véhicule.
Download or read book lectrolytes solides fluor s pour batteries tout solide ions F written by Johann Chable and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail porte sur la synthèse, la mise en forme et la caractérisation desolutions solides de type tysonite RE1-xMxF3-x (RE = La, Sm, Ce et M = Ba, Ca, Sr). Dans unpremier temps, une démarche d'étude rigoureuse est mise en place pour la solution solide ditede référence, La1-xBaxF3-x. Les synthèses menées à l'état solide aboutissent à une maîtrise dela composition chimique et à l'établissement de lois de variations des paramètres structuraux.Une meilleure compréhension de l'influence de la structure sur la mobilité des ions F- estégalement acquise. L'influence du frittage dans l'obtention de bonnes valeurs de conductivitéionique est également à souligner. Dans un second temps, les effets de la nanostructurationpar mécanobroyage sur les propriétés de conductivité sont évalués. L'utilisation de laméthodologie des plans d'expériences mène à la mise au point des réglages optimums debroyage. Il apparaît alors que la synthèse des électrolytes peut être accélérée et mise àl'échelle tout en gardant des valeurs optimales de conductivité. Enfin, la démarche déterminéeest appliquée à d'autres solutions solides de type tysonite et à la recherche du conducteurionique le plus performant. Si les composés issus de la substitution Ce/Sr ou encore Sm/Casemblent les plus prometteurs, la plus grande stabilité chimique de la solution solide La1-xSrxF3-x est le compromis idéal pour l'utiliser comme électrolyte solide lors des mesuresélectrochimiques des batteries.
Download or read book Friction Stir Welding written by Daniela Lohwasser and published by Elsevier. This book was released on 2009-12-18 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Friction stir welding (FSW) is a highly important and recently developed joining technology that produces a solid phase bond. It uses a rotating tool to generate frictional heat that causes material of the components to be welded to soften without reaching the melting point and allows the tool to move along the weld line. Plasticized material is transferred from the leading edge to trailing edge of the tool probe, leaving a solid phase bond between the two parts. Friction stir welding: from basics to applications reviews the fundamentals of the process and how it is used in industrial applications.Part one discusses general issues with chapters on topics such as basic process overview, material deformation and joint formation in friction stir welding, inspection and quality control and friction stir welding equipment requirements and machinery descriptions as well as industrial applications of friction stir welding. A chapter giving an outlook on the future of friction stir welding is included in Part one. Part two reviews the variables in friction stir welding including residual stresses in friction stir welding, effects and defects of friction stir welds, modelling thermal properties in friction stir welding and metallurgy and weld performance.With its distinguished editors and international team of contributors, Friction stir welding: from basics to applications is a standard reference for mechanical, welding and materials engineers in the aerospace, automotive, railway, shipbuilding, nuclear and other metal fabrication industries, particularly those that use aluminium alloys. Provides essential information on topics such as basic process overview, materials deformation and joint formation in friction stir welding Inspection and quality control and friction stir welding equipment requirements are discussed as well as industrial applications of friction stir welding Reviews the variables involved in friction stir welding including residual stresses, effects and defects of friction stir welds, modelling thermal properties, metallurgy and weld performance
Download or read book Supercapacitors Based on Carbon or Pseudocapacitive Materials written by Patrice Simon and published by John Wiley & Sons. This book was released on 2017-06-26 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrochemical capacitors are electrochemical energy storage devices able to quickly deliver or store large quantities of energy. They have stimulated numerous innovations throughout the last 20 years and are now implemented in many fields. Supercapacitors Based on Carbon or Pseudocapacitive Materials provides the scientific basis for a better understanding of the characteristics and performance of electrochemical capacitors based on electrochemical double layer electrodes or pseudocapacitive materials, as well as providing information on the design and conception of new devices such as lithium-ion capacitors. This book details the various applications of supercapacitors, ranging from power electronics and stationary use, to transportation (hybrid vehicles, trams, planes, etc.). They are increasingly used in the automotive sector, especially as part of stop/start systems that have allowed for energy recovery through braking and reduced fuel consumption.
Download or read book Modeling of Liquid Phases written by Michel Soustelle and published by John Wiley & Sons. This book was released on 2015-08-31 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is part of a set of books which offers advanced students successive characterization tool phases, the study of all types of phase (liquid, gas and solid, pure or multi-component), process engineering, chemical and electrochemical equilibria, and the properties of surfaces and phases of small sizes. Macroscopic and microscopic models are in turn covered with a constant correlation between the two scales. Particular attention has been given to the rigor of mathematical developments. This second volume in the set is devoted to the study of liquid phases.
Download or read book Thermodynamics of Surfaces and Capillary Systems written by Michel Soustelle and published by John Wiley & Sons. This book was released on 2016-06-20 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is part of a set of books which offers advanced students successive characterization tool phases, the study of all types of phase (liquid, gas and solid, pure or multi-component), process engineering, chemical and electrochemical equilibria, and the properties of surfaces and phases of small sizes. Macroscopic and microscopic models are in turn covered with a constant correlation between the two scales. Particular attention has been given to the rigor of mathematical developments. This volume, the final of the Chemical Thermodynamics Set, offers an in-depth examination of chemical thermodynamics. The author uses systems of liquids, vapors, solids and mixtures of these in thermodynamic approaches to determine the influence of the temperature and pressure on the surface tension and its consequences on specific heat capacities and latent heats. Electro-capillary phenomena, the thermodynamics of cylindrical capillary and small volume-phases are also discussed, along with a thermodynamic study of the phenomenon of nucleation of a condensed phase and the properties of thin liquid films. The final chapters discuss the phenomena of physical adsorption and chemical adsorption of gases by solid surfaces. In an Appendix, applications of physical adsorption for the determination of the specific areas of solids and their porosity are given.
Download or read book Electrodes for Li ion Batteries written by Laure Monconduit and published by John Wiley & Sons. This book was released on 2015-06-29 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electrochemical energy storage is a means to conserve electrical energy in chemical form. This form of storage benefits from the fact that these two energies share the same vector, the electron. This advantage allows us to limit the losses related to the conversion of energy from one form to another. The RS2E focuses its research on rechargeable electrochemical devices (or electrochemical storage) batteries and supercapacitors. The materials used in the electrodes are key components of lithium-ion batteries. Their nature depend battery performance in terms of mass and volume capacity, energy density, power, durability, safety, etc. This book deals with current and future positive and negative electrode materials covering aspects related to research new and better materials for future applications (related to renewable energy storage and transportation in particular), bringing light on the mechanisms of operation, aging and failure.
Download or read book The Science of metals written by Zay Jeffries and published by . This book was released on 1924 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book About the Contemplative Life written by Philo (of Alexandria.) and published by . This book was released on 1895 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shipbuilders of the Thames and Medway written by Philip Banbury and published by Newton Abbot : David and Charles. This book was released on 1971 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Connected Objects in Health written by Laure Beyala and published by Elsevier. This book was released on 2017-08-10 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Connected objects today present a range of opportunities in medicine. We live in a new digital era where the monitoring and analysis of one’s own health information no longer belongs solely to the realm of science fiction. The success of these new devices resides in their usage, which integrates seamlessly into the daily life of the user in order to continually collect the maximum amount of data. These medical connected devices therefore constitute a new hope in transforming user experience as well as the care pathway. They offer a better level of support and a better quality of life for those suffering from chronic illnesses or mental, sensorial or physical disabilities. However, these solutions also pose systematic problems, especially regarding the risks linked to their usage. This book presents a cartography which clearly details all the potential risk scenarios linked to the usage of connected devices as well as the actions which should be undertaken to promote balanced governance and guarantee the development of high-quality medical devices. Aims to help the reader understand the difference between a connected object and a medical connected device Identifies and evaluates all the potential risks and perspectives associated with the use of connected medical devices Shows how to make a comprehensive risk analysis with standards like ISO 31000 and 14971
Download or read book Satellite Situation Report written by and published by . This book was released on 1978-12 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Historical Dictionary of Laos written by Martin Stuart-Fox and published by Rowman & Littlefield. This book was released on 2023-02-06 with total page 751 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laos has the smallest population, the weakest military, and despite rapid economic growth in recent years, one of the lowest levels of per capita income in mainland Southeast Asia. Yet a glance at the map reveals its strategic location, between China and Cambodia and Thailand and Vietnam. As Laos was formerly a crossroads for trade routes, the socialist government of the Lao People’s Democratic Republic seeks to transform the country into a prosperous crossroads at the heart of this rapidly developing region. Historical Dictionary of Laos, Fourth Edition provides an in-depth examination of one of the least-known countries in Southeast Asia through a detailed chronology, comprehensive introduction, and extensive bibliography. The dictionary section has more than 1,000 cross-referenced entries on important personalities, as well as aspects of the country’s politics, economy, foreign relations, religion, and culture. This book will be an excellent resource for students, researchers, and anyone wanting to know more about Laos.
Download or read book The Forum on China Africa Cooperation FOCAC written by Ian Taylor and published by Routledge. This book was released on 2010-12-20 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increase in China’s economic and political involvement in Africa is arguably the most momentous development on the continent since the end of the Cold War. This book seeks to detail the origins, structure, workings and activities of The Forum on China-Africa Cooperation (FOCAC) and its development over the last nine years. Mindful of the growing realisation that Africa is to play an increasingly important role in global energy politics, Ian Taylor provides a clear and detailed overview of an organisation that has been generally overlooked, despite the exponential rise in the importance of the Chinese presence in Africa. Topics addressed include: the key structures, functions and operations of the FOCAC the importance and development of the triennial summits, including the focus on cultural exchanges and economic cooperation the key criticisms and challenges currently faced by the FOCAC discussion of ‘emerging issues’ – is it possible to have a "win-win" situation between Africa and China, as the FOCAC suggests? The Forum on China-Africa Cooperation provides a concise introduction to an organisation that will be instrumental in the future of Africa’s relationship with the developed world, and will be of interest to students of African and Chinese politics, International Relations and International Organizations.
Download or read book Cryptographic Hardware and Embedded Systems CHES 2001 written by CHES 2001 and published by Springer Science & Business Media. This book was released on 2001-08-15 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-proceedings of the Third International Workshop on Cryptoanalysis Hardware and Embedded Systems, CHES 2001, held in Paris, France in Mai 2001. The 31 revised full papers presented were carefully reviewed and selected from 66 submissions. The papers are organized in topical sections on side channel attacks, Rijndael hardware implementation, random number generators, elliptic curve algorithms, arithmetic architectures, cryptanalysis, embedded implementations of ciphers, and side channel attacks on elliptic curve cryptosystems.
Download or read book Biowarfare in America written by Jim Keith and published by Illuminet Press. This book was released on 1999 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The era of chemical and biological megadeath is upon us, and the potential of deadly biowarfare attacks from governments, militant independent groups, and even individuals is far greater than it has been at any time in the past. At this time, more than twenty-five countries are developing, or have stockpiles of chemical and biological weapons, in many cases in sufficient quantities to wipe out the entire population of the world. So far the danger of chemical and biological aggression has been little acknowledged, and, at least in America, little prepared for by federal and local government. Most terrorist threats and attacks are not widely reported in the mainstream media. Although information about the proliferation of man-made diseases is carefully suppressed by governments and the media they will be covered in the pages of this book. Not only is America unprepared and ignorant of what is happening, but the people in government and scientific professions who do know, who should be warning the American public about the dangers of chemical and biological terrorism, are instead doing their utmost to hide this information from us; information that is vital for our survival.The information that is contained in the pages of this book will not be measured or calculated to reassure people that everything is fine, when reassurance is the exact opposite of what is needed at this time. It may even give you nightmares when you realise the real circumstance that we are in. The information in the pages that follow will be the truth about the biowarfare threat to America.
