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Dissertations / Theses on the topic 'Bivalent metal ion batteries'

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Published: 6 September 2023

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1

David, Lamuel Abraham. "Van der Waals sheets for rechargeable metal-ion batteries." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/32796.

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Doctor of Philosophy<br>Department of Mechanical and Nuclear Engineering<br>Gurpreet Singh<br>The inevitable depletion of fossil fuels and related environmental issues has led to exploration of alternative energy sources and storage technologies. Among various energy storage technologies, rechargeable metal-ion batteries (MIB) are at the forefront. One dominant factor affecting the performance of MIB is the choice of electrode material. This thesis reports synthesis of paper like electrodes composed for three representative layered materials (van der Waals sheets) namely reduced graphene oxide

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2

Li, Xianji. "Metal nitrides as negative electrode materials for sodium-ion batteries." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/374787/.

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3

Nose, Masafumi. "Studies on Sodium-containing Transition Metal Phosphates for Sodium-ion Batteries." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215565.

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4

Lubke, Mechthild. "Nano-sized transition metal oxide negative electrode materials for lithium-ion batteries." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10044227/.

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This thesis focuses on the synthesis, characterization and electrochemical evaluation of various nano-sized materials for use in high power and high energy lithium-ion batteries. The materials were synthesised via a continuous hydrothermal flow synthesis (CHFS) process, which is a single step synthesis method with many advantages including screening processes (chapter 5). Electrochemical energy storage is introduced in chapter 1, with a focus on high power and high energy negative electrode materials for lithium-ion batteries (and capacitors). Many different classes of materials are discussed

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5

Budak, Öznil [Verfasser]. "Metal oxide / carbon hybrid anode materials for lithium-ion batteries / Öznil Budak." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2020. http://d-nb.info/1232726214/34.

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6

Alwast, Dorothea [Verfasser]. "Electrochemical Model Studies on Metal-air and Lithium-ion Batteries / Dorothea Alwast." Ulm : Universität Ulm, 2021. http://d-nb.info/1237750822/34.

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7

Berti, Nicola. "MgH2-TiH2 hydrides as negative electrodesof Li-ion batteries." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC1029/document.

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Les batteries lithium-ion sont aujourd’hui très utilisées pour alimenter l’électronique portable telle que les ordinateurs, les smartphones et les caméras. Cependant, de nouvelles applications telles que les véhicules électriques et les systèmes stationnaires de stockage d'énergie nécessitent des batteries à performances améliorées. En particulier, de nouveaux matériaux d'électrode avec des densités d'énergie plus élevées sont requis. Les hydrures de MgH2 et TiH2 et leurs mélanges possèdent de très fortes capacités électrochimiques (>1 Ah/g). Ils ont été étudiés comme matériaux d’électrode

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8

Henriques, Alexandra J. "Nano-Confined Metal Oxide in Carbon Nanotube Composite Electrodes for Lithium Ion Batteries." FIU Digital Commons, 2017. http://digitalcommons.fiu.edu/etd/3169.

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Lithium ion batteries (LIB) are one of the most commercially significant secondary batteries, but in order to continue improving the devices that rely on this form of energy storage, it is necessary to optimize their components. One common problem with anode materials that hinders their performance is volumetric expansion during cycling. One of the methods studied to resolve this issue is the confinement of metal oxides with the interest of improving the longevity of their performance with cycling. Confinement of metal oxide nanoparticles within carbon nanotubes has shown to improve the perfor

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9

Tsukamoto, Hisashi. "Synthesis and electrochemical studies of lithium transition metal oxides for lithium-ion batteries." Thesis, University of Aberdeen, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327428.

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10

Martin, Andréa Joris Quentin. "Nano-sized Transition Metal Fluorides as Positive Electrode Materials for Alkali-Ion Batteries." Doctoral thesis, Humboldt-Universität zu Berlin, 2020. http://dx.doi.org/10.18452/21619.

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Übergangsmetallfluoridverbindungen sind sehr vielversprechende Kandidaten für die nächste Generation von Kathoden für Alkaliionenbatterien. Dennoch verhindern einige Nachteile dieser Materialklasse ihre Anwendung in Energiespeichermedien. Metallfluoride haben eine stark isolierende Wirkung, außerdem bewirken die Mechanismen beim Lade-/Entladevorgang, große Volumenänderungen und somit eine drastische Reorganisation des Materials, welche nur geringfügig umkehrbar ist. Um diese Nachteile zu reduzieren, werden in dieser Arbeit innovative Syntheserouten für die Umwandlung von Metallfluoridverbindun

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11

Dall'Agnese, Yohan. "Study of early transition metal carbides for energy storage applications." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30025/document.

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La demande urgente d'innovations dans le domaine du stockage de l'énergie est liée au développement récent de la production d'énergie renouvelable ainsi qu'à la diversification des produits électroniques portables qui consomment de plus en plus d'énergie. Il existe plusieurs technologies pour le stockage et la conversion électrochimique de l'énergie, les plus notables étant les batteries aux ions lithium, les piles à combustible et les supercondensateurs. Ces systèmes sont utilisés de façon complémentaire des uns aux autres dans des applications différentes. Par exemple, les batteries sont plu

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12

Wang, Miaojun. "Energetics of lithium transition metal oxides applied as cathode materials in lithium ion batteries /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.

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13

Limthongkul, Pimpa 1975. "Phase transformations and microstructural design of lithiated metal anodes for lithium-ion rechargeable batteries." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8443.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2002.<br>Includes bibliographical references.<br>There has been great recent interest in lithium storage at the anode of Li-ion rechargeable battery by alloying with metals such as Al, Sn, and Sb, or metalloids such as Si, as an alternative to the intercalation of graphite. This is due to the intrinsically high gravimetric and volumetric energy densities of this type of anodes (can be over an order of magnitude of that of graphite). However, the Achilles' heel of these Li-Me alloys has been the p

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14

Arayamparambil, Jeethu Jiju. "Metal carbodiimides and cyanamides, a new family of electrode materials for Li-ion batteries." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS066.

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Les batteries Li-ion constituent actuellement la technologie de choix pour tous les équipements portables, les moyens de transports électriques et le stockage stationnaire des énergies renouvelables. Actuellement, le graphite est incontestablement le matériau d'anode le plus utilisé pour les batteries Li-ion en raison de ses excellentes propriétés telles que sa durabilité, son abondance et son faible coût. Cependant, sa faible densité d'énergie est son talon d'Achille. En plus, le graphite présente certains problèmes de sécurité, en particulier à des puissances élevées. En conséquence, d’autre

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15

Thanaweera, Achchige Dumindu P. "Design and characterisation of layered transition metal oxide cathode materials for Na-ion batteries." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/228445/1/Dumindu_Thanaweera%20Achchige_Thesis.pdf.

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Owing to the scarcity of lithium, discovering alternatives for lithium in rechargeable batteries is a critical requirement. Sodium is an ideal candidate for this purpose. The absence of exceptional cathode materials in sodium-ion batteries is a bottleneck in realizing the above objective. This study focused on synthesizing novel transition metal oxide cathode materials for sodium-ion batteries and improving their electrochemical properties. The outcomes of this study emphasized the importance of novel material compositions as well as the role of smart cation substitution, anion redox reaction,

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16

LINGUA, GABRIELE. "Newly designed single-ion conducting polymer electrolytes enabling advanced Li-metal solid-state batteries." Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2969103.

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17

Wang, Luyuan Paul. "Matériaux à hautes performance à base d'oxydes métalliques pour applications de stockage de l'énergie." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAI031/document.

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Le cœur de technologie d'une batterie réside principalement dans les matériaux actifs des électrodes, qui est fondamental pour pouvoir stocker une grande quantité de charge et garantir une bonne durée de vie. Le dioxyde d'étain (SnO₂) a été étudié en tant que matériau d'anode dans les batteries Li-ion (LIB) et Na-ion (NIB), en raison de sa capacité spécifique élevée et sa bonne tenue en régimes de puissance élevés. Cependant, lors du processus de charge/décharge, ce matériau souffre d'une grande expansion volumique qui entraîne une mauvaise cyclabilité, ce qui empêche la mise en oeuvre de SnO₂

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18

Maisuradze, Mariam. "Synthesis and Characterization of Double Metal Hexacyanoferrates." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21014/.

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Manganese Hexacyanoferrate (MnHCF) and nickel doped manganese hexacyanoferrate were synthesized by simple co-precipitation method. The water content and chemical formula was obtained by TGA and MP-AES measurements, functional groups by FT-IR analysis, the crystal structure by PXRD and a local geometry by XAS. Elemental species of cycled samples were further investigated by TXM and 2D XRF. Electrochemical tests were performed in the glass cell. With addition of nickel, vacancies and water content increased in the sample. Crystal structure changed from monoclinic to cubic. Ni disturbed the local

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19

Courtney, Ian Anthony. "The physics and chemistry of metal oxide composites as anode materials for lithium-ion batteries." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0021/NQ49253.pdf.

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20

Sgarbi, Stabellini Francesca. "Synthesis and surface characterization of metal (Mn, Ti) hexacyanoferrate electrodes." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24378/.

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Due to the limited resources of lithium, new chemistries based on the abundant and cheap sodium and even zinc have been proposed for the battery market. Prussian Blue Analogues (PBAs) are a class of compounds which have been explored for many different applications because of their intriguing electrochemical and magnetic properties. Manganese and titanium hexacyanoferrate (MnHCF and TiHCF) belong to the class of PBAs. In this work, MnHCF and TiHCF electrodes were synthetized, cycled with cyclic voltammetry (CV) in different setups and subsequently, the surfaces were characterized with X-ray Ph

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21

Ohira, Koji. "Systematic survey of phosphate materials for lithium-ion batteries by first principle calculations." Master's thesis, 京都大学 (Kyoto University), 2013. http://hdl.handle.net/2433/180500.

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22

Moore, Charles J. (Charles Jacob). "Ab initio screening of lithium diffusion rates in transition metal oxide cathodes for lithium ion batteries." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/79562.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 57-62).<br>A screening metric for diffusion limitations in lithium ion battery cathodes is derived using transition state theory and common materials properties. The metric relies on net activation barrier for lithium diffusion. Several cathode materials are screened using this approach: [beta]'-LiFePO4, hexagonal LiMnBO3, monoclinic LiMnBO3, Li 3Mn(CO3)(PO4), and Li9V3 (P2O7)3(PO4) 2. The activation barriers

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23

Mohamed, Zakiah. "Relationships Among Structure, Magnetism and State of Charge in Positive Electrode Materials for Metal-Ion Batteries." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/14438.

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Polyanionic framework materials containing 3d transition metals such as iron, cobalt and manganese are attractive candidates as electrodes in lithium and sodium ion batteries due to their thermal stability, long cycle life and environmental friendliness. LiFePO4 is already used in some commercial lithium ion batteries as a positive electrode material where these are key attributes, but it still has lower energy density and higher costs compared to the more commonly used LiCoO2. This thesis describes a combined physical properties and magnetic structures some of these materials, aimed at improv

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24

Cognet, Marine. "Elaboration de matériaux hybrides pour le stockage de l’énergie et le recyclage de batteries Li-Ion." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS064.

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Le stockage de l’énergie est devenu un enjeu mondial et un défi majeur pour la transition énergétique. Il est, en effet, nécessaire de développer des matériaux de batteries plus efficaces et facilement recyclables pour un développement responsable de ces technologies.Dans le cadre de cette thèse, les MOFs ont été utilisés comme matériaux de batteries mais aussi comme outil pour le recyclage de batteries Li-ion. Trois différents modèles de matériaux ont ainsi été synthétisés, basés sur des groupements phosphonates, sulfonates ou encore carboxylates associés à différents métaux de transition (Fe

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25

Vijayakumar, V. "Preparation, characterization and application of proton, lithium and zinc-ion conducting polymer electrolytes for supercapacitors, lithium- and zinc-metal batteries." Thesis(Ph.D.), CSIR-National Chemical Laboratory, 2021. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/5972.

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The use of liquid electrolytes in energy storage devices are associated with several constraints pertaining to safety. Polymer electrolytes are suitable candidates to overcome several problems associated with free-flowing liquid electrolytes. The current thesis deals with the development of proton, lithium, and zinc conducting gel polymer electrolytes for electrochemical energy storage devices such as supercapacitors, lithium-metal batteries, and zinc-metal batteries. Special emphasis is given to the improvement of electrode|electrolyte interface in polymer electrolyte-based energy storage dev

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26

Purushothaman, Bushan K. "DEVELOPMENT OF BATTERIES FOR IMPLANTABLE APPLICATIONS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=case1151609663.

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27

Martin, Andréa Joris Quentin [Verfasser]. "Nano-sized Transition Metal Fluorides as Positive Electrode Materials for Alkali-Ion Batteries / Andréa Joris Quentin Martin." Berlin : Humboldt-Universität zu Berlin, 2020. http://d-nb.info/1220690406/34.

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28

Gao, Shuang. "INVESTIGATION OF TRANSITION-METAL IONS IN THE NICKEL-RICH LAYERED POSITIVE ELECTRODE MATERIALS FOR LITHIUM-ION BATTERIES." UKnowledge, 2019. https://uknowledge.uky.edu/cme_etds/100.

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Layered lithium transition-metal oxides (LMOs) are used as the positive electrode material in rechargeable lithium-ion batteries. Because transition metals undergo redox reactions when lithium ions intercalate in and disintercalate from the lattice, the selection and composition of transition metals largely influence the electrochemical performance of LMOs. Recently, a Ni-rich compound, LiNi0.8Co0.1Mn0.1O2 (NCM811), has drawn much attention. It is expected to replace its state-of-the-art cousins, LiCoO2 (LCO) and LiNi1/3Co1/3Mn1/3O2 (NCM111), because of its higher capacity, lower cost, and red

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29

Inamoto, Jun-ichi, and Junichi Inamoto. "Electrochemical Characterization of Surface-State of Positive Thin-Film Electrodes in Lithium-Ion Batteries." Kyoto University, 2017. http://hdl.handle.net/2433/226784.

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30

Zhao, Zijian [Verfasser], and H. [Akademischer Betreuer] Ehrenberg. "Study of Ternary Transition Metal Oxides as Conversion Anodes in Li-Ion Batteries / Zijian Zhao ; Betreuer: H. Ehrenberg." Karlsruhe : KIT-Bibliothek, 2019. http://d-nb.info/1199459917/34.

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31

Baur, Christian [Verfasser]. "Li-rich disordered rock salt transition metal oxyfluorides as novel cathode materials in lithium-ion batteries / Christian Baur." Ulm : Universität Ulm, 2020. http://d-nb.info/1219577693/34.

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32

Gosselink, Denise. "Study of Transition Metal Phosphides as Anode Materials for Lithium-ion Batteries: Phase Transitions and the Role of the Anionic Network." Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/2958.

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This study highlights the importance of the anion in the electrochemical uptake of lithium by metal phosphides. It is shown through a variety of <em>in-situ</em> and <em>ex-situ</em> analytical techniques that the redox active centers in three different systems (MnP<i><sub>4</sub></i>, FeP<i><sub>2</sub></i>, and CoP<i><sub>3</sub></i>) are not necessarily cationic but can rest almost entirely upon the anionic network, thanks to the high degree of covalency of the metal-phosphorus bond and strong P-character of the uppermost filled electronic bands in the phosphides. The electrochemical me

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33

Tian, Guiying [Verfasser], and H. [Akademischer Betreuer] Ehrenberg. "Study on lithium ion migration in the composite solid electrolyte for lithium metal batteries / Guiying Tian ; Betreuer: H. Ehrenberg." Karlsruhe : KIT-Bibliothek, 2019. http://d-nb.info/1177147157/34.

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34

Nilsson, Viktor. "Highly Concentrated Electrolytes for Lithium Batteries : From fundamentals to cell tests." Licentiate thesis, Chalmers University of Technology, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-351339.

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The electrolyte is a crucial part of any lithium battery, strongly affecting longevity and safety. It has to survive rather severe conditions, not the least at the electrode/electrolyte interfaces. Current commercial electrolytes based on 1 M LiPF 6 in a mixture of organic solvents balance the requirements on conductivity and electrochemical stability, but they are volatile and degrade when operated at temperatures above ca. 70°C. The salt could potentially be replaced with e.g. LiTFSI, but corrosion of the aluminium current collector is an issue. Replacing the graphite negative electrode by L

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35

聖, 橋上, and Satoshi Hashigami. "Studies on degradation factors and their mitigation methods of cathode materials for advanced lithium-ion batteries." Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13106330/?lang=0, 2019. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13106330/?lang=0.

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再生可能エネルギーの大量導入に向けて、電力需給の安定化を目的として蓄電池を用いる電力貯蔵技術に注目が集まっている。現状のリチウムイオン電池(LIB)がベースの先進LIBは250Wh/kgの高エネルギー密度を有し、自動車のみならず電力貯蔵用途としても普及が期待されている。本研究では先進LIB正極材料として期待されるリチウム過剰系正極と高ニッケル三元系正極について容量低下などの劣化要因を明確にして、それら課題に対して正極粒子への酸化物修飾による解決を検討した。<br>The development of energy storage technologies using batteries has attracted much attention to introduce the renewable energy. If we can achieve 250 Wh kg-1 with the advanced LIBs based on the principle of LIB, we can lower the cost of the total energy storage systems while ensuring the safety, and hence the advanced LIBs will accelerate the world-wide spread of l

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36

Combelles, Cécil. "Modélisation ab-initio Appliquée à la Conception de Nouvelles Batteries Li-Ion." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2009. http://tel.archives-ouvertes.fr/tel-00421182.

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Pour améliorer les performances des batteries au lithium, des ruptures technologiques sont nécessaires. Ceci impose que les aspects fondamentaux liés au fonctionnement de ces dispositifs électroniques soient reconsidérés. Dans cette optique, les méthodes de la chimie quantique peuvent apporter une aide précieuse, notamment pour comprendre les phénomènes électroniques microscopiques, à l'origine du stockage de l'énergie. Établir une relation directe entre la nature de la liaison chimique (microscopique) et les propriétés physico-chimiques (macroscopiques) des matériaux d'électrode pour batterie

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Li, Chengping [Verfasser], and H. [Akademischer Betreuer] Ehrenberg. "Investigation of Metal Oxides/Sulfides as Negative Electrode Materials for Li-ion and Beyond-Li Batteries / Chengping Li ; Betreuer: H. Ehrenberg." Karlsruhe : KIT-Bibliothek, 2021. http://d-nb.info/1227451296/34.

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De, Villiers Daniel. "The application of new generation batteries in old tactical radios / D. de Villiers." Thesis, North-West University, 2007. http://hdl.handle.net/10394/738.

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The power requirement for the soldier's equipment is largely supplied by batteries. Situational awareness is critical for a soldier to perform his tasks. Therefore the radio used by the soldier is a key element in situational awareness and also consumes the most power. The South African National Defence Force (SANDF) uses the A43 tactical radio specifically designed for them. The radios are regarded as old technology but will be in use for about another five years. The radios still use non-rechargeable alkaline batteries which do not last very long and are not cost effective. The purpose of th

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Lyness, Christopher. "Novel lithium-ion host materials for electrode applications." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/1921.

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Two novel lithium host materials were investigated using structural and electrochemical analysis; the cathode material Li₂CoSiO₄ and the LiMO₂ class of anodes (where M is a transition metal ion). Li₂CoSiO₄ materials were produced utilising a combination of solid state and hydrothermal synthesis conditions. Three Li₂CoSiO₄ polymorphs were synthesised; β[subscript(I)], β[subscript(II)] and γ₀. The Li₂CoSiO₄ polymorphs formed structures based around a distorted Li₃PO₄ structure. The β[subscript(II)] material was indexed to a Pmn2₁ space group, the β[subscript(I)] polymorph to Pbn2₁ and the γ₀ mat

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40

Liu, Xinye. "Binary metal organic framework derived hierarchical hollow Ni3S2/Co9S8/N-doped carbon composite with superior sodium storage performance." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1489784678856585.

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41

MANCINI, Marilena. "Improved anodic materials for lithium-ion batteries: surface modification by metal deposition and electrochemical characterization of oxidized graphite and titanium dioxide electrodes." Doctoral thesis, Università degli Studi di Camerino, 2009. http://hdl.handle.net/11581/401752.

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The research work presented in this thesis has been carried out during my Ph.D. study at the Chemistry Department of Camerino University (Italy) and at the ''Centre for Solar Energy and Hydrogen Research Baden-Wa'¼rttemberg'' (ZSW) in Ulm, (Germany). [...] The thesis deals with the evaluation of the electrochemical performances of metal-modified anodes for lithium-ion batteries. The results obtained by using either partially oxidized graphite or TiO2 anatase as active materials for anode fabrication are presented. The obtained results have been the subject of the following scientific publicati

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Giesecke, Marianne. "Characterizing ions in solution by NMR methods." Doctoral thesis, KTH, Tillämpad fysikalisk kemi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-149552.

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NMR experiments performed under the effect of electric fields, either continuous or pulsed, can provide quantitative parameters related to ion association and ion transport in solution. Electrophoretic NMR (eNMR) is based on a diffusion pulse-sequence with electric fields applied in the form of pulses. Magnetic field gradients enable the measurement of the electrophoretic mobility of charged species, a parameter that can be related to ionic association. The effective charge of the tetramethylammonium cation ion in water, dimethylsulphoxide (DMSO), acetonitrile, methanol and ethanol was estima

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Zhang, Yirui S. M. Massachusetts Institute of Technology. "Understanding the pathway and mechanism of electrolyte decomposition on metal oxide surfaces in Li-ion batteries by in situ Fourier Transform Infrared Spectroscopy." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122227.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 69-75).<br>Understanding (electro)chemical reactions at the electrode-electrolyte interface (EEI) is crucial to promote the cycle life of lithium-ion batteries. In situ studies of EEI can provide new insights into reaction intermediates and soluble species not accessible by ex situ characterization of electrode surfaces. In this study, we developed an in situ Fourier Transform infrared spectroscopy (FTIR) method t

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Popa, Andreia Ioana. "Electrochemistry and magnetism of lithium doped transition metal oxides." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-26029.

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The physics of transition metal oxides is controlled by the combination and competition of several degrees of freedom, in particular the charge, the spin and the orbital state of the electrons. One important parameter responsible for the physical properties is the density of charge carriers which determines the oxidization state of the transition metal ions. The central objective in this work is the study of transition metal oxides in which the charge carrier density is adjusted and controlled via lithium intercalation/deintercalation using electrochemical methods. Lithium exchange can be achi

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Popa, Andreia Ioana. "Electrochemistry and magnetism of lithium doped transition metal oxides." Doctoral thesis, Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden, 2009. https://tud.qucosa.de/id/qucosa%3A25180.

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Abstract:

The physics of transition metal oxides is controlled by the combination and competition of several degrees of freedom, in particular the charge, the spin and the orbital state of the electrons. One important parameter responsible for the physical properties is the density of charge carriers which determines the oxidization state of the transition metal ions. The central objective in this work is the study of transition metal oxides in which the charge carrier density is adjusted and controlled via lithium intercalation/deintercalation using electrochemical methods. Lithium exchange can be achi

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46

Gao, Suning [Verfasser], Rudolf [Gutachter] Holze, Rudolf [Akademischer Betreuer] Holze, and Qunting [Gutachter] Qu. "Layered transition metal sulfide- based negative electrode materials for lithium and sodium ion batteries and their mechanistic studies / Suning Gao ; Gutachter: Rudolf Holze, Qunting Qu ; Betreuer: Rudolf Holze." Chemnitz : Technische Universität Chemnitz, 2020. http://d-nb.info/1219910309/34.

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Bani, Hashemi Amir [Verfasser], Mantia Fabio [Akademischer Betreuer] La, Mantia Fabio [Gutachter] La, and Mauro [Gutachter] Pasta. "Electrochemical and morphological characterization of the Interface at negative electrodes in aqueous metal-ion batteries "Gas Evolution & electrodepostion Efficiency" / Amir Bani Hashemi ; Gutachter: Fabio La Mantia, Mauro Pasta ; Betreuer: Fabio La Mantia." Bremen : Staats- und Universitätsbibliothek Bremen, 2018. http://d-nb.info/1154925978/34.

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Bhatti, Asif Iqbal. "Calculs ab-initio et simulations atomistiques des propriétés thermodynamiques et cinétiques de complexes de métaux de transition utilisés comme batteries." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAI092/document.

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Ce travail théorique vise à étudier, via les méthodes Premiers Principes, les propriétés des complexes de métaux de transitions, left[Mleft(dmbpyright)_{3}right]^{n+}nCi^{-} pour un usage en batterie. Pour cette étude ab-initio, les composés mono et bi-nucléaires ont été retenus. La pertinance de notre modélisation a été validée sur les composés mononucléaires. Nous nous sommes interessé au complexes de Fe, Ru et Cu pour lesquels une validation expérimentale était possible. Notre étude a principalement consisté à faire varier les degrés de liberté que nous possédons pour optimiser le voltage e

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Adam, Robert. "Phasenumwandlungen und Änderungen der Mikrostruktur in Konversionselektroden für Lithium-Ionen-Batterien basierend auf 3d-Übergangsmetalloxiden." TU Bergakademie Freiberg, 2020. https://tubaf.qucosa.de/id/qucosa%3A75540.

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Die untersuchten Ausgangsmaterialien α-Fe2U3, ɣ-Fe2O3, Fe3O4, CoO, Co3O4, NiO sowie CuO eignen sich durch ihre hohe theoretische spezifische Kapazität als Elektrodenmaterial für Lithium-Ionen-Batterien. Die zugrundeliegenden Mechanismen zur Speicherung der Li-Ionen konnten mit allen Phasenumwandlungen und der Bildung von Zwischenprodukten im ersten Reduktionsschritt beschrieben werden. In Abhängigkeit von der Kristallstruktur der Ausgangsmaterialien und den Reaktionsgeschwindigkeiten konnten der Gesamtreaktion die einzelnen Mechanismen Interkalation von Li-Ionen, Substitution von Kationen in d

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Venkatesha, Akshatha. "Structural and Electrochemical Investigations of Monovalent and Divalent Aqueous Rechargeable Batteries." Thesis, 2023. https://etd.iisc.ac.in/handle/2005/6205.

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Several stringent laws and regulations have been enforced by various National/International agencies for the adoption of sustainable methods for energy production and usage. In recent times, electric grids based on alternative renewable sources such as solar, tidal, geothermal, and biomass have witnessed an upsurge. However, the intermittent nature of renewable resources and the sub-optimal electricity distribution/transmission calls for corrective measures leading to enhancement in the efficiency of electricity utilization. It is now widely recognized that energy storage via rechargeable batt

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