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The search for new electrode and membrane materials for lithium-ion batteries (LIBs) has been under investigation to satisfy the ever-growing demands for better performance with higher energy density, improved safety and longer cycle life. In this study, electrospraying has been used to produce mesoporous thin films for the application as Li-ion battery separators. Electrospraying is a film formation technique that utilizes electrical rather than mechanical forces to form uniformly sprayed films. Polyacrylonitrile (PAN) was used to produce these thin membranes of thickness ranging between 20 and 25 microns. In this system, Polyethylene Oxide was incorporated as a sacrificial polymer. An ideal separator for LIB must be permeable and must have pore sizes ranging from 30 to 100 nm to facilitate good ion transport. In addition, a low thickness is required for high energy and power densities. Using this approach, we were able to achieve thinner and more porous membranes with pore sizes ranging from 0.1 microns to 0.3 microns. Silica precursors like PSSQ(Poly(silsesquioxane)) and OPSZ (Organopolysilazane) were incorporated into the film to increase the ionic conductivity of the membranes and thermal stability thereby increasing the battery performance. Results from SEM, BET, DSC, FTIR, Impedance Spectroscopy, Capillary Flow Analysis, Dynamic Mechanical Analysis of resulting mesoporous polymer/ceramic will be discussed. The battery tests reveal that mesoporous polymeric/ceramic film separators exhibit higher capacity and better capacity retention than polymeric/ceramic nanofiber separators. Meanwhile, metal oxides can prevent the corrosion of the electrode under harsh electrochemical conditions and thus they are regarded as promising electrode coating materials for highperformance Lithium Ion Batteries (LIBs). Zirconium metal oxide was studied as a potential anode coating material to further improve the cycle stability and performance of the LIBs. The Zirconium metal oxide was electrosprayed onto the silicon (Si)/reduced graphene ocide (RGO) anodes. Si/RGO anodes have been prepared by gas-assisted electrospraying the mixture of Si and Graphene Oxide (GO), followed by thermal treatment. Results from SEM, Impedance Spectroscopy, battery testing will be discussed.
The series covers the fundamentals and applications of different smart material systems from renowned international experts.
As global energy consumption continues to rapidly increase, the need for new technologies to meet this demand in a sustainable way. Renewable sources such as solar and wind power are being increasingly utilized for electricity generation. However, the intermittent nature of these sources requires large-scale energy storage to reliably provide consistent power. Current grid-scale energy storage usually involves pumped hydroelectric systems, which are limited by location, or flywheel systems, which have limited use in high-power low-energy applications. Electrochemical storage solutions, such as lithium-ion batteries, provide robust energy storage that is not limited by location with a range of power and energy densities. Current lithium-ion battery technologies are used to power everything from electric vehicles (EVs) to handheld electronics. However, as the power and energy requirements of these devices continue to increase, new battery technologies will be needed. For example, the shift toward EVs faces issues related to vehicle batteries, including vehicle range, charging time, and cost.Thin-film batteries have several characteristics, such as high energy and power densities and long cycle life, that make them promising for next-generation lithium-ion batteries. Additionally, materials that have major drawbacks, such as large changes in volume during battery cycling, are possible to use in thin film systems. High-rate charging is also possible using thin film lithium-ion batteries due to the short distance lithium ions must intercalate during the charging process.In this thesis, an aerosol chemical vapor deposition (ACVD) technique is used to synthesize structured, single-crystal thin-film battery electrodes in a single-step process that operates at atmospheric pressure. Several materials were synthesized, such as SnO2, TiO2, and doped TiO2, for use as lithium-ion battery electrodes. A scale-up study on the ACVD reactor was conducted by developing a coupled computational fluid-dynamics -- aerosol dynamics model. This model was used to study the effect of reactor operating parameters on the resultant thin film morphology, deposition rate, and uniformity. Finally, a lithium-sulfur battery electrode was synthesized using a TiO2 thin film synthesized via ACVD combined with a metal-organic-framework synthesized using electrospray.
Lithium Batteries: Science and Technology is an up-to-date and comprehensive compendium on advanced power sources and energy related topics. Each chapter is a detailed and thorough treatment of its subject. The volume includes several tutorials and contributes to an understanding of the many fields that impact the development of lithium batteries. Recent advances on various components are included and numerous examples of innovation are presented. Extensive references are given at the end of each chapter. All contributors are internationally recognized experts in their respective specialty. The fundamental knowledge necessary for designing new battery materials with desired physical and chemical properties including structural, electronic and reactivity are discussed. The molecular engineering of battery materials is treated by the most advanced theoretical and experimental methods.
Offers the first comprehensive account of this interesting and growing research field Printed Batteries: Materials, Technologies and Applications reviews the current state of the art for printed batteries, discussing the different types and materials, and describing the printing techniques. It addresses the main applications that are being developed for printed batteries as well as the major advantages and remaining challenges that exist in this rapidly evolving area of research. It is the first book on printed batteries that seeks to promote a deeper understanding of this increasingly relevant research and application area. It is written in a way so as to interest and motivate readers to tackle the many challenges that lie ahead so that the entire research community can provide the world with a bright, innovative future in the area of printed batteries. Topics covered in Printed Batteries include, Printed Batteries: Definition, Types and Advantages; Printing Techniques for Batteries, Including 3D Printing; Inks Formulation and Properties for Printing Techniques; Rheological Properties for Electrode Slurry; Solid Polymer Electrolytes for Printed Batteries; Printed Battery Design; and Printed Battery Applications. Covers everything readers need to know about the materials and techniques required for printed batteries Informs on the applications for printed batteries and what the benefits are Discusses the challenges that lie ahead as innovators continue with their research Printed Batteries: Materials, Technologies and Applications is a unique and informative book that will appeal to academic researchers, industrial scientists, and engineers working in the areas of sensors, actuators, energy storage, and printed electronics.
"This is the first machine-generated scientific book in chemistry published by Springer Nature. Serving as an innovative prototype defining the current status of the technology, it also provides an overview about the latest trends of lithium-ion batteries research. This book explores future ways of informing researchers and professionals. State-of-the-art computer algorithms were applied to: select relevant sources from Springer Nature publications, arrange these in a topical order, and provide succinct summaries of these articles. The result is a cross-corpora auto-summarization of current texts, organized by means of a similarity-based clustering routine in coherent chapters and sections. This book summarizes more than 150 research articles published from 2016 to 2018 and provides an informative and concise overview of recent research into anode and cathode materials as well as further aspects such as separators, polymer electrolytes, thermal behavior and modelling. With this prototype, Springer Nature has begun an innovative journey to explore the field of machine-generated content and to find answers to the manifold questions on this fascinating topic. Therefore it was intentionally decided not to manually polish or copy-edit any of the texts so as to highlight the current status and remaining boundaries of machine-generated content. Our goal is to initiate a broad discussion, together with the research community and domain experts, about the future opportunities, challenges and limitations of this technology."--Publisher's website.