Download or read book Laser Drying Of Graphite Anodes For The Production Of Lithium Ion Batteries A Process And Material Side Analysis For Sustainable Battery Production written by Sebastian Wolf and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Structuring of Graphite Anodes for Functionally Enhanced Lithium Ion Batteries written by Jan Bernd Habedank and published by utzverlag GmbH. This book was released on 2022-01-21 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low Cost and Scalable Material Designs and Processes for Next Generation Lithium Ion Battery Anodes written by Jesse Adam Baucom and published by . This book was released on 2020 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern human civilization depends on the production and utilization of vast quantities of energy. While innovations in technology are generally met with applause, discoveries over the potential catastrophic impacts of our current ways of generating energy on our climate and society have prompted worldwide efforts to mitigate these issues. Although environmentally-friendly and sustainable methods for electricity generation such as solar photovoltaic energy hold promise for solving our energy issues, a complete shift towards renewable energy would require the development of grid-scale energy storage systems due to the intermittent nature of such technology. In addition, the automotive industry is undergoing a complete transformation to electrification in efforts to reduce the environmental impact of vehicles and comply with increasingly stringent regulations, representing yet another urgent need for high-performance energy storage systems. Of all energy storage technologies for potentially enabling grid storage and electric vehicles, lithium-ion batteries are of particular interest due to their rechargeability, high energy and power densities, and energy efficiency. Although lithium-ion batteries are now widely used for a variety of applications, their prohibitively high cost has prevented their application in these crucial technologies. For specific applications such as electric vehicles and portable electronics, lithium-ion batteries have yet to achieve the energy and power density requirements necessary, posing additional barriers. On top of these obstacles, the commercial viability of lithium-ion batteries for these applications depends on the ability to scale up the production processes to satisfy the market need, creating yet another challenge for solving these important issues. While the development of high-capacity anode materials for lithium-ion batteries is a promising route towards enabling these applications, many of the novel designs for such materials are prohibitively expensive or difficult to scale, preventing them from achieving widespread market adoption. In this dissertation, we describe novel materials and processes for producing three high-capacity anode materials of great industry and academic interest: graphene, silicon, and lithium metal. First, we present a novel method for induction heating-mediated synthesis of freestanding anodes for improving the scalability of traditional chemical vapor deposition processes through reduced process downtimes while enabling higher energy and volumetric densities in lithium-ion batteries by virtue of the freestanding nature of the electrode design, reducing the mass and volume of electrochemically-inactive components. Next, we describe a method for the production of silicon/PVA/graphite composite anodes with long cycling life through the use of a 1-step ball milling method utilizing low-cost precursors for scalable production of high-capacity anode materials. Finally, we reveal a design for air-stable lithium metal hosts fabricated from a scalable powder metallurgic approach, which allows for the fabrication of high-performance lithium metal batteries compatible with existing infrastructure, circumventing the need for a high-cost assembly in an inert atmosphere.
Download or read book Modeling of Adhesion Mechanisms of Graphite based Anodes for Lithium ion Batteries67z written by Nicolas Billot and published by utzverlag GmbH. This book was released on 2022-08-16 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical Study on Graphite and Lithium Metal as Anode Materials for Next Generation Rechargeable Batteries written by Gabin Yoon and published by Springer Nature. This book was released on 2022-07-08 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes in-depth theoretical efforts to understand the reaction mechanism of graphite and lithium metal as anodes for next-generation rechargeable batteries. The first part deals with Na intercalation chemistry in graphite, whose understanding is crucial for utilizing graphite as an anode for Na-ion batteries. The author demonstrates that Na ion intercalation in graphite is thermodynamically unstable because of the unfavorable Na-graphene interaction. To address this issue, the inclusion of screening moieties, such as solvents, is suggested and proven to enable reversible Na-solvent cointercalation in graphite. Furthermore, the author provides the correlation between the intercalation behavior and the properties of solvents, suggesting a general strategy to tailor the electrochemical intercalation chemistry. The second part addresses the Li dendrite growth issue, which is preventing practical application of Li metal anodes. A continuum mechanics study considering various experimental conditions reveals the origins of irregular growth of Li metal. The findings provide crucial clues for developing effective counter strategies to control the Li metal growth, which will advance the application of high-energy-density Li metal anodes.
Download or read book Laser Micro Nano Manufacturing and 3D Microprinting written by Anming Hu and published by Springer Nature. This book was released on 2020-11-28 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the latest advances in laser techniques for micro-nano-manufacturing and an in-depth analysis of applications, such as 3D printing and nanojoining. Lasers have gained increasing significance as a precise tool for advanced manufacturing. Written by world leading scientists, the first part of the book presents the fundamentals of laser interaction with materials at the micro- and nanoscale, including multiphoton excitation and nonthermal melting, and allows readers to better understand advanced processing. In the second part, the authors focus on various advanced fabrications, such as laser peening, surface nanoengineering, and plasmonic heating. Finally, case studies are devoted to special applications, such as 3D printing, microfluidics devices, energy devices, and plasmonic and photonic waveguides. This book integrates both theoretical and experimental analysis. The combination of tutorial chapters and concentrated case studies will be critically attractive to undergraduate and graduate students, researchers, and engineers in the relevant fields. Readers will grasp the full picture of the application of laser for micro-nanomanufacturing and 3D printing.
Download or read book Recycling of Lithium Ion Batteries written by Arno Kwade and published by Springer. This book was released on 2017-12-12 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses recycling technologies for many of the valuable and scarce materials from spent lithium-ion batteries. A successful transition to electric mobility will result in large volumes of these. The book discusses engineering issues in the entire process chain from disassembly over mechanical conditioning to chemical treatment. A framework for environmental and economic evaluation is presented and recommendations for researchers as well as for potential operators are derived.
Download or read book Lithium Ion Batteries written by Masaki Yoshio and published by Springer Science & Business Media. This book was released on 2010-07-17 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here in a single source is an up-to-date description of the technology associated with the Li-Ion battery industry. It will be useful as a text for researchers interested in energy conversion for the direct conversion of chemical energy into electrical energy.
Download or read book Lithium ion Batteries written by and published by . This book was released on 2019 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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.
Download or read book Optimization and Domestic Sourcing of Lithium Ion Battery Anode Materials written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this Cooperative Research and Development Agreement (CRADA) between ORNL and A123Systems, Inc. was to develop a low-temperature heat treatment process for natural graphite based anode materials for high-capacity and long-cycle-life lithium ion batteries. Three major problems currently plague state-of-the-art lithium ion battery anode materials. The first is the cost of the artificial graphite, which is heat-treated well in excess of 2000°C. Because of this high-temperature heat treatment, the anode active material significantly contributes to the cost of a lithium ion battery. The second problem is the limited specific capacity of state-of-the-art anodes based on artificial graphites, which is only about 200-350 mAh/g. This value needs to be increased to achieve high energy density when used with the low cell-voltage nanoparticle LiFePO4 cathode. Thirdly, the rate capability under cycling conditions of natural graphite based materials must be improved to match that of the nanoparticle LiFePO4. Natural graphite materials contain inherent crystallinity and lithium intercalation activity. They hold particular appeal, as they offer huge potential for industrial energy savings with the energy costs essentially subsidized by geological processes. Natural graphites have been heat-treated to a substantially lower temperature (as low as 1000-1500°C) and used as anode active materials to address the problems described above. Finally, corresponding graphitization and post-treatment processes were developed that are amenable to scaling to automotive quantities.
Download or read book Silicon Based Thin Film Anodes for Next Generation Lithium Ion Battery written by Polat Karahan Billur Deniz and published by LAP Lambert Academic Publishing. This book was released on 2015-08-12 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the selection criteria for material and production process are explained to improve the capacity and the cycle life of negative electrodes for lithium ion battery. In this sense, importance of Si thin film anode has been widely discussed. Among alternative production processes, magnetron sputtering is highlighted since it leads to form highly adherent amorphous/nano-sized crystaline structured film due to energetic particles deposition. Moreover to improve the electonic conductivity and to promote the mechanical resistance, Cu atoms are deposited with Si. The test results of different Si-Cu films show that compositionally graded film represents the most promising anode material because high Cu content at the bottom of the film enhances the adhesion and the low Cu content on top increases the capacity and the reversibility of lithiation/delithiation reactions. In the concept of the book, a clear understanding on the relationship between morphological, structural design and electrochemical performance of the thin films has been made. This would increase the likelihood of making high capacity anodes for next generation lithium ion batteries.
Download or read book Surface Functionalization for the Development of Nanocomposite Anodes for Lithium Ion Batteries written by Gul Zeb and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The requirements of reducing cost per kWh and increasing production of Li ion battery packs to achieve commercial viability of the electric vehicles have put enormous pressure on producing battery electrodes with higher energy densities than before. Silicon (Si) and tin (Sn) with their theoretical capacities of 4200 mAh/g and 994 mAh/g, respectively, are candidates to replace the conventional graphite anode having its theoretical capacity limited at 372 mAh/g. The practical use of Si and Sn, however, faces the challenges of mechanical degradation induced by the large volume change (>250%) during cycling, and the associated instability of solid electrolyte interphase (SEI). Consequently, the anodes of Si and Sn bulk materials exhibit poor cyclability and low Coulombic efficiencies. These challenges require innovative approaches to make Si- and Sn-based anode materials practical and feasible for Li ion battery technology.Composites of Sn nanoparticles (NP) and graphene are mechanically stable and avoid quick fading of capacity. A uniform dispersion of NP with controlled size on graphene is necessary to obtain high performance. The first part of our research focuses on controlling the nucleation of Sn NP on highly ordered pyrolitic graphite (HOPG) from solution. We demonstrate that functional groups act as sites for Sn NP nucleation, and that homogeneous NP nucleation can be achieved by surface functionalization of HOPG through diazonium chemistry.Next, we use diazonium chemistry to functionalize graphene flakes, and document the electrochemical performance of the bare and the functionalized graphene. The functionalized graphene exhibits higher Coulombic efficiency and reversible capacity. We proceed to deposit Sn NP on the functionalized graphene and perform structural and electrochemical characterization. This Sn/graphene composite delivers a reversible capacity of 434 mAh/g after 60 cycles, which is twice as much as the bare graphene. The layer of SEI on this anode, however, appears to be instable and prompts for a fix.We propose two types of surface treatments on the Sn/graphene anode surface to improve the formation of the SEI layer. These treatments include the deposition of graphene oxide sheets and the grafting of sulfophenyl groups. Both treatments result in the formation of a stable layer of SEI, which explains the lower and stable charge transfer resistance at the anode interface during cycling. The anodes treated with layers of graphene oxide and sulfophenyl groups deliver reversible capacities which are 39% and 85% higher than the untreated Sn/graphene anode, viz. 603 and 802 mAh/g, respectively. We relate the enhanced electrochemical performance of the treated anodes to the formation of a stable SEI layer.While Sn-based materials appear very promising, Si-based materials offer even higher Li storage capacities, inspiring us to study Si/graphene composites. We compare the cycle life of three formulations of Si/graphene nanocomposite anodes that only differ in the nature of bonding between Si nanoparticles and graphene flakes, i.e. mechanically mixed, electrostatically coupled and covalently bonded Si NP/graphene composites. We synthesize the electrostatically coupled nanocomposite via electrostatic assembly of positively charged aminated-Si nanoparticles and negatively charged carboxylated-graphene. We prepare the covalently coupled nanocomposite via amide bond formation between aminated-Si nanoparticles and carboxylated-graphene using carbodiimide as coupling agent. We experimentally demonstrate that the capacity fading for the covalently bonded composite is significantly slower than for the electrostatically coupled and mechanically mixed Si NP and graphene flakes. These results suggest that covalent coupling of Si and graphene improves the nanoscale mechanical stability during cycling and improves electrical contact between graphene and Si, thus resulting in higher cyclability." --
Download or read book Laser Fabrication and Machining of Materials written by Narendra B. Dahotre and published by Springer Science & Business Media. This book was released on 2008-01-25 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the fundamental principles and physical phenomena behind laser-based fabrication and machining processes. It also gives an overview of their existing and potential applications. With laser machining an emerging area in various applications ranging from bulk machining in metal forming to micromachining and microstructuring, this book provides a link between advanced materials and advanced manufacturing techniques. The interdisciplinary approach of this text will help prepare students and researchers for the next generation of manufacturing.
Download or read book Long term Lithium ion Battery Performance Improvement Via Ultraviolet Light Treatment of the Graphite Anode written by and published by . This book was released on 2016 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of ultraviolet (UV) light on dried graphite anodes were investigated in terms of the cycle life of lithium ion batteries. The time variations for the UV treatment were 0 (no treatment), 20, 40, and 60 minutes. UV-light-treated graphite anodes were assembled for cycle life tests in pouch cells with pristine Li1.02Ni0.50Mn0.29Co0.19O2 (NMC 532) cathodes. UV treatment for 40 minutes resulted in the highest capacity retention and the lowest resistance after the cycle life testing. X-ray photoelectron spectroscopy (XPS) and contact angle measurements on the graphite anodes showed changes in surface chemistry and wetting after the UV treatment. XPS also showed increases in solvent products and decreases in salt products on the SEI surface when UV-treated anodes were used. In conclusion, the thickness of the surface films and their compositions on the anodes and cathodes were also estimated using survey scans and snapshots from XPS depth profiles.
Download or read book Rational Design of Lithium Sodium Ion Battery Anode for High Performance Energy Storage written by Xianyang Li and published by . This book was released on 2019 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid increasing consumption of fossil fuels since the industrial revolution has brought about environmental and ecological contamination and its depletion, thus, humankind must stop to utilize more clean and renewable energy such as solar, hydraulic power, wind power as alternative. In this case, an effective and efficient medium is a must since those sorts of renewable energy are difficult to be stored and utilized in a standard way. As the invention and improvement of battery, electrical power come up to be the chosen solution. Therefore, electrical vehicles are already commercialized for a long time and growing up rapidly, grabbing the market share from traditional Inner Combustion Engine vehicles. Among the various battery chemistries, Lithium-ion Batteries (LIBs) have acquire most of attention from both academia and industry. With a similar mechanism, Sodium-ion Batteries (SIBs) are acting as an alternative for LIBs for their low cost. However, the current battery performance cannot satisfy the market of electrical vehicle and consumer electronics, thus, energy density and power density as two of the crucial factors for battery performance must be enhanced. To address these issues, the anode of LIBs and SIBs need to be improved. In this dissertation, novel ideas for anode materials design were given, towards not only the current anode modification, but next generation anode production as well. With a high theoretical capacity of 2595 mAh g-1 from alloy reaction, phosphorus is one of the most promising candidates as next generation anode material for lithium/sodium ion battery. Nonetheless, it is suffering volume expansion (300% for LIBs and 500% for SIBs) and low conductivity during cycling, leading to sacrificed robustness of the electrode. Herein, we developed an efficient and effective high energy ball milling route to crystalline phosphorus within carbon matrix as anode material for LIB and SIB. The special structure offers many advantages: enhanced the conductivity; shortened distance for Li+ or Na+ diffusion; buffered volumetric expansion and more stable structure. Benefitting from the merits, the composite delivers a capacity over 1000 mAh g-1 for about 300 cycles at a specific current of 1 A g-1. Both half-cell and full cell cycling test show an 80% retention around 300th cycle. More essentially, crystalline phosphorus can be still found after many cycles. As-prepared material also delivered a high sodium capacity over 700 mAh g-1 over 300 cycles. For increasing utilization in electrical vehicles, the limitation of power density has become a severe issue for LIBs. Therefore, LIBs with advanced high rate performance is highly desirable. A major issue for developing high rate battery is the performance of anode as their sluggish intercalation kinetics. Herein, we provide a new strategy for advanced performance LIB anode design and its demonstration. To fabricate anode with both high energy and power density, two different materials with each character respectively were mixed to achieve the goal, meanwhile, they need to have different charge and discharge plateaus. As the redox plateaus of these materials are different, the electrochemical interaction will occur when they are being charged or discharged as composite, thus enhance the performance as anode for LIBs. Phosphorus-carbon composite and commercialized LTO were utilized to demonstrate this strategy. The current anode system in commercialized LIBs are difficult to be substituted in the near future because of their low charging potential which leads to a high energy density for full cell. In this case, the development of LIBs in EV are highly depends on modification of the current system in recent years. Therefore, we developed a new route for graphite anode improvement with the additive of Metal-organic Framework (MOF). With its special structure, open metal sites (OMS), MOF can immobilize the anion of electrolyte by forming coordination bond, thereby prevents the electrolyte from decomposition, so as to eliminate the byproduct and heat release. With these advantages from MOF additive, the graphite anode performance was improved a great deal especially fast discharging (full cell). And post-cycle characterization explores that MOF keeps higher crystallinity of graphite and lower down the decomposition of the electrolyte LiPF6.
Download or read book Na ion Batteries written by and published by John Wiley & Sons. This book was released on 2021-05-11 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers both the fundamental and applied aspects of advanced Na-ion batteries (NIB) which have proven to be a potential challenger to Li-ion batteries. Both the chemistry and design of positive and negative electrode materials are examined. In NIB, the electrolyte is also a crucial part of the batteries and the recent research, showing a possible alternative to classical electrolytes – with the development of ionic liquid-based electrolytes – is also explored. Cycling performance in NIB is also strongly associated with the quality of the electrode-electrolyte interface, where electrolyte degradation takes place; thus, Na-ion Batteries details the recent achievements in furthering knowledge of this interface. Finally, as the ultimate goal is commercialization of this new electrical storage technology, the last chapters are dedicated to the industrial point of view, given by two startup companies, who developed two different NIB chemistries for complementary applications and markets.
Download or read book Lithium ion Battery Materials and Engineering written by Malgorzata K. Gulbinska and published by Springer. This book was released on 2014-09-06 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gaining public attention due, in part, to their potential application as energy storage devices in cars, Lithium-ion batteries have encountered widespread demand, however, the understanding of lithium-ion technology has often lagged behind production. This book defines the most commonly encountered challenges from the perspective of a high-end lithium-ion manufacturer with two decades of experience with lithium-ion batteries and over six decades of experience with batteries of other chemistries. Authors with years of experience in the applied science and engineering of lithium-ion batteries gather to share their view on where lithium-ion technology stands now, what are the main challenges, and their possible solutions. The book contains real-life examples of how a subtle change in cell components can have a considerable effect on cell’s performance. Examples are supported with approachable basic science commentaries. Providing a unique combination of practical know-how with an in-depth perspective, this book will appeal to graduate students, young faculty members, or others interested in the current research and development trends in lithium-ion technology.
