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A Study Of Electrodeposited Negative Electrodes For Lithium Ion Batteries With An Emphasis On Combinatorial Electrodeposition
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Author :Shane D. Beattie Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 :9780612897960 Total Pages :0 pages Book Rating :4.8/5 (979 download)
Book Synopsis A Study of Electrodeposited Negative Electrodes for Lithium-ion Batteries with an Emphasis on Combinatorial Electrodeposition [microform] by : Shane D. Beattie
Download or read book A Study of Electrodeposited Negative Electrodes for Lithium-ion Batteries with an Emphasis on Combinatorial Electrodeposition [microform] written by Shane D. Beattie and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Electrodeposited Negative Electrodes for Lithium-ion Batteries with an Emphasis on Combinatorial Electrodeposition by : Shane D. Beattie
Download or read book A Study of Electrodeposited Negative Electrodes for Lithium-ion Batteries with an Emphasis on Combinatorial Electrodeposition written by Shane D. Beattie and published by . This book was released on 2003 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Consequences of Combinatorial Studies of Positive Electrodes for Li-ion Batteries by : Eric McCalla
Download or read book Consequences of Combinatorial Studies of Positive Electrodes for Li-ion Batteries written by Eric McCalla and published by Springer. This book was released on 2014-04-30 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Li-Co-Mn-Ni oxides have been of extreme interest as potential positive electrode materials for next generation Li-ion batteries. Though many promising materials have been discovered and studied extensively, much debate remains in the literature about the structures of these materials. There is no consensus as to whether the lithium-rich layered materials are single-phase or form a layered-layered composite on the few nanometer length-scales. Much of this debate came about because no phase diagrams existed to describe these systems under the synthesis conditions used to make electrode materials. Detailed in this thesis are the complete Li-Co-Mn-O and Li-Mn-Ni-O phase diagrams generated by way of the combinatorial synthesis of mg-scale samples at over five hundred compositions characterized with X-ray diffraction. Selected bulk samples were used to confirm that the findings are relevant to synthesis conditions used commercially. The results help resolve a number of points of confusion and contradiction in the literature. Amongst other important findings, the compositions and synthesis conditions giving rise to layered-layered nano-composites are presented and electrochemical results are used to show how better electrode materials can be achieved by making samples in the single phase-layered regions.
Book Synopsis Passivation of the Negative Electrode in Lithium-ion Batteries by : Matthijs Pepijn Van den Berg
Download or read book Passivation of the Negative Electrode in Lithium-ion Batteries written by Matthijs Pepijn Van den Berg and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Lithium-ion batteries have become the standard in rechargeable batteries for both portable electronics and electric vehicles because of their high energy and power densities. The solid-electrolyte interphase (SEI) on the negative electrode of these batteries is critical for their performance: it must allow lithium ions to pass while providing a barrier between other reducible species in the electrolyte and the highly reducing electrode, while maintaining the conduction of lithium ions necessary for battery operation. However, in commercial battery production it is often left to form adventitiously on the battery's first charge, optimizing the charging conditions rather than the chemical identity of the layer. As a result these SEIs consist of a complex mixture of organic and inorganic reduction products, a large part of which cannot fulfill the main three functions of an SEI: (1) electronic insulation, (2) impermeability to solvent and electrolyte species, and (3) lithium-ion conductivity. In this thesis it is shown that a simplified SEI primarily composed of lithium fluoride (LiF) can perform these functions, mimicking the beneficial function of an SEI. Furthermore it is shown that LiF can efficiently be deposited by the electrochemical reduction of hydrogen fluoride (HF), small quantities of which are known to be present in battery electrolytes due to hydrolysis of the electrolyte salt lithium hexafluorophosphate. The deposition of this thin layer is characterized and optimized using a simplified electrolyte chemistry on metallic electrodes. 19F-Nuclear magnetic resonance (NMR) spectroscopy is introduced as a useful tool for studying the production of HF in LiPF6-containing electrolytes. Using NMR it is shown that the hydrolysis reaction is strongly dependent on the ion pairing, and that it is greatly slowed in the absence of the lithium ion. The NMR signal for HF is studied in detail, and the expected H-F coupling is observed at low concentrations in the absence of water. A facile way to precisely control the concentration of HF in non-aqueous lithium-ion battery electrolytes containing lithium hexafluorophosphate is presented and benchmarked. The effective removal of adventitiously formed HF in these electrolytes by 3-A molecular sieves is demonstrated, which enables an HF-free LiPF6-based electrolyte for the first time. Subsequently the synthesis, drying, and quantification of anhydrous hydrogen fluoride in non-aqueous solvents was developed and characterized, yielding precise control over the concentration of HF and the following electrodeposition of LiF. Using these techniques the electrodeposition of LiF can be finely controlled. The resulting thin layer can fulfill the main functions of the SEI without excess loss of lithium, clearing the way for more efficient SEI formation in commercial lithium-ion batteries.
Book Synopsis Understanding Electronic Structure and Interfaces of Positive Electrodes for Lithium Ion Batteries by : Pinar Karayaylali
Download or read book Understanding Electronic Structure and Interfaces of Positive Electrodes for Lithium Ion Batteries written by Pinar Karayaylali and published by . This book was released on 2016 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lithium ion batteries are the currently the best commercial battery in the market and they are used as energy storage devices for mobile phones, laptops, and other portable electronic devices. This is due to their balance of high energy density with high power density compared to other electrochemical energy devices. Also, these days the automotive industry wants to use lithium ion batteries to electric vehicles to reduce the pollution and independence to oil. Although lithium ion batteries are currently one of the best energy storage devices, there is still an ample room for improvement. One of the key parameters to study is electrode/electrolyte interface of electrodes. EEI on the negative electrode, also known as Solid Electrolyte Interphase (SEI) has the well-known structure with organic and inorganic compounds. Although EEI on negative electrodes is well known, it is not the case for positive electrodes. Numerous studies have been done on positive electrodes; however, there is still a need for systematic study of these interfaces on positive electrodes. This thesis is about understanding the reactivity and interactions of Li-ion battery positive electrode materials with the electrolyte. By understanding reactions at the EEI, we can develop a way to improve cycle life and safety of lithium ion batteries. To unambiguously pinpoint the electrode/electrolyte interface layers on different positive electrode materials, 100 % active materials are used as positive electrodes instead of composite electrodes.
Book Synopsis The Utilization of Meniscus Brush Plating Electrodeposition for the Fabrication of Freestanding Heterogeneous Copper-tin Films for Lithium Alloying Negative Electrodes in Lithium Ion Batteries by : Kimberly Yuri Scott
Download or read book The Utilization of Meniscus Brush Plating Electrodeposition for the Fabrication of Freestanding Heterogeneous Copper-tin Films for Lithium Alloying Negative Electrodes in Lithium Ion Batteries written by Kimberly Yuri Scott and published by . This book was released on 2014 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Combinatorial Studies of Fe-Zn and Fe-Si-Zn Alloy Negative Electrodes for Li-ion Batteries by : Lauren MacEachern
Download or read book Combinatorial Studies of Fe-Zn and Fe-Si-Zn Alloy Negative Electrodes for Li-ion Batteries written by Lauren MacEachern and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Degradation of Carbon Negative Electrodes in Lithium-ion Batteries by : Peter Magdy Attia
Download or read book Degradation of Carbon Negative Electrodes in Lithium-ion Batteries written by Peter Magdy Attia and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The graphitic negative electrode is widely used in today's commercial lithium-ion batteries. However, its lifetime is limited by a number of degradation modes, particularly growth of the solid electrolyte interphase (SEI), lithium plating, and electrode inactivation. Two major challenges to better batteries are the range of length scales (nanometers to centimeters) over which degradation modes occur, as well as slow development times. In this thesis, I overcome these challenges by studying the degradation of carbon electrodes in both model systems and commercial devices and by using machine learning methods for accelerated battery optimization. First, I study SEI growth on carbon black via microscopy, electrochemistry, and modeling. I first use cryogenic transmission electron microscopy (cryo-EM) to image the SEI on carbon black and track its evolution during cycling. I observe an evolution of inorganic components in thin (~2 nm), primary SEI directly interfaced to the carbon black, as well as deposits of SEI that span hundreds of nanometers. I then electrochemically measure the dependence of SEI growth on potential, current magnitude, and current direction during galvanostatic cycling. I find that SEI growth strongly depends on all three parameters; most notably, SEI growth rates increase with nominal C rate and are significantly higher on lithiation than on delithiation. Finally, I model the SEI as a mixed ionic-electronic conductor, where the ionic concentration modulates the electronic conductivity. This model can account for the previously observed directional dependence. This work illustrates the MIEC-like nature of the SEI on carbonaceous anodes and illustrates the strong coupling between charge storage (i.e. intercalation) and SEI growth. Second, I characterize the cell-level degradation of commercial lithium iron phosphate (LFP)/graphite cylindrical cells during fast charging. I find that the graphite electrode exhibits significant and highly heterogeneous degradation during fast charging, with large ionically inactive regions located near the electrode tab. This ionic inactivation of the electrode appears to occur via large-scale SEI growth, preceding more conventional fast charging degradation modes such as lithium plating. Third, I optimize a six-step fast-charging protocol that achieves 80% state of charge in ten minutes on commercial LFP/graphite cylindrical cells. I first develop a machine learning algorithm that uses cycling data from the first 100 cycles to predict cycle lives that reach up to 2300 cycles with ~9% error. Then, I use an optimal experimental design methodology for fast-charging protocol optimization, with two key elements to reduce the optimization cost: early prediction of failure, which reduces the cost per experiment, and adaptive Bayesian multi-armed bandits, which reduces the number of experiments required. The fast charging protocols identified by this algorithm are unexpected given the battery literature. The combination of closed-loop optimization and early prediction illustrates the power of data-driven methods to accelerate the pace of scientific discovery.
Book Synopsis Nanostructured Niobium Oxides as Negative Electrodes for Lithium and Sodium Ion Batteries by : Pete Levi Barnes
Download or read book Nanostructured Niobium Oxides as Negative Electrodes for Lithium and Sodium Ion Batteries written by Pete Levi Barnes and published by . This book was released on 2021 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Over 30 years have passed since the commercialization of the lithium ion battery (LIB), which to date continues to present key challenges in energy/power, stability, and safety. Intense research efforts have made large strides in developing durable LIBs with high energy and power densities toward a wide range of applications from electric vehicles to large scale energy storage systems for renewable energy. Nevertheless, limited work has been done in the applications of amorphous oxide electrode materials due to the perception that amorphous materials are less electrically conductive than crystalline ones. Recent studies suggest that inducing crystallization of amorphous nanostructured oxides through electrochemical cycling can lead to materials with enhanced electrochemical charge storage performance. However, fundamental knowledge regarding the driving forces, thermodynamics, and nucleation and growth kinetics of the electrochemically-induced amorphous-to-crystalline (a-to-c) transformation remains limited. In this work we report a new nanostructured rock salt (RS) Nb2O5 electrode formed through operando electrochemical cycling of amorphous Nb2O5 with Li+."--Boise State University ScholarWorks.
Book Synopsis Combinatorial Studies of Silicon-based Alloy Negatives for Lithium-ion Batteries by : Timothy D. Hatchard
Download or read book Combinatorial Studies of Silicon-based Alloy Negatives for Lithium-ion Batteries written by Timothy D. Hatchard and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Recycled Silicon Powders and Carbon Black for Negative Electrodes of Lithium Ion Batteries and Electrochemical Characterization of Electrolytes Containing Additives by : 張朝翔
Download or read book Study of Recycled Silicon Powders and Carbon Black for Negative Electrodes of Lithium Ion Batteries and Electrochemical Characterization of Electrolytes Containing Additives written by 張朝翔 and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Negative Electrodes for Lithium-ion Batteries by : Jing Li
Download or read book Advanced Negative Electrodes for Lithium-ion Batteries written by Jing Li and published by . This book was released on 2009 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Surface Chemical Treatment on Silicon Negative Electrodes for Lithium-ion Batteries: an in Situ Infrared Spectroscopic Study by : Daniel Alves Dalla Corte
Download or read book Effects of Surface Chemical Treatment on Silicon Negative Electrodes for Lithium-ion Batteries: an in Situ Infrared Spectroscopic Study written by Daniel Alves Dalla Corte and published by . This book was released on 2013 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies On Electrode Materials For Lithium-Ion Batteries by :
Download or read book Studies On Electrode Materials For Lithium-Ion Batteries written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early 1970s, research carried out on rechargeable lithium batteries at the Exxon Laboratories in the US established that lithium ions can be intercalated electrochemically into certain layered transition-metal sulphides, the most promising being titanium disulphide. Stemming from this discovery for titanium disulphide, there has been increased interest on lithium-ion intercalation compounds for application in rechargeable batteries. The first rechargeable lithium cell was commercialized in late 1980s by Moli Energy Corporation in Canada. The cell comprised a spirally wound lithium foil as the anode, a separator and MoS2 as the cathode. The cell had a nominal voltage of 1.8 V and an attractive value of specific energy, which was 2 to 3 times greater than either lead-acid or nickel-cadmium cells. However, the battery was withdrawn from the market after safety problems were experienced. This paved way for the discovery of lithium-ion battery. The origin of lithium-ion battery lies in the discovery that Li+-ions can be reversibly intercalated within or deintercalated from the van der Walls gap between graphene sheets of carbon materials at a potential close to the Li/Li+ electrode. Thus, lithium metal is replaced by carbon as the anode material for rechargeable lithium-ion batteries, and the problems associated with metallic lithium mitigated. Complimentary investigations on intercalation compounds based on transition metals resulted in establishing LiCoO2 and LiNiO2 as promising cathode materials. By employing aforesaid intercalation materials, namely carbon and LiCoO2 respectively, as negative and positive electrodes in a non-aqueous lithium-salt electrolyte, a Li-ion cell with a voltage value of about 3.5 V resulted. These findings led to a novel rechargeable battery technology. Lithium-ion batteries were first introduced commercially in 1991 by the Sony Corporation in Japan. Other Japanese manufacturers soon entered the market, followed closely by American an.
Book Synopsis Advances in Hydrochloric Acid Research and Application: 2012 Edition by :
Download or read book Advances in Hydrochloric Acid Research and Application: 2012 Edition written by and published by ScholarlyEditions. This book was released on 2012-12-26 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Hydrochloric Acid Research and Application / 2012 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized information about Hydrochloric Acid in a concise format. The editors have built Advances in Hydrochloric Acid Research and Application / 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Hydrochloric Acid in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Advances in Hydrochloric Acid Research and Application / 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Book Synopsis Inorganic Materials for the Negative Electrode of Lithium-ion Batteries by : Jose L. Tirado
Download or read book Inorganic Materials for the Negative Electrode of Lithium-ion Batteries written by Jose L. Tirado and published by . This book was released on 2002 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Battery Materials by : Claus Daniel
Download or read book Handbook of Battery Materials written by Claus Daniel and published by John Wiley & Sons. This book was released on 2012-12-21 with total page 973 pages. Available in PDF, EPUB and Kindle. Book excerpt: A one-stop resource for both researchers and development engineers, this comprehensive handbook serves as a daily reference, replacing heaps of individual papers. This second edition features twenty percent more content with new chapters on battery characterization, process technology, failure mechanisms and method development, plus updated information on classic batteries as well as entirely new results on advanced approaches. The authors, from such leading institutions as the US National Labs and from companies such as Panasonic and Sanyo, present a balanced view on battery research and large-scale applications. They follow a distinctly materials-oriented route through the entire field of battery research, thus allowing readers to quickly find the information on the particular materials system relevant to their research.