Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Transition Metal Carbodiimides As Molecular Negative Electrode Materials For Lithium And Sodium Ion Batteries With Excellent Cycling Properties
Download Transition Metal Carbodiimides As Molecular Negative Electrode Materials For Lithium And Sodium Ion Batteries With Excellent Cycling Properties full books in PDF, epub, and Kindle. Read online Transition Metal Carbodiimides As Molecular Negative Electrode Materials For Lithium And Sodium Ion Batteries With Excellent Cycling Properties ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Transition-Metal Carbodiimides as Molecular Negative Electrode Materials for Lithium- and Sodium-Ion Batteries with Excellent Cycling Properties by :
Download or read book Transition-Metal Carbodiimides as Molecular Negative Electrode Materials for Lithium- and Sodium-Ion Batteries with Excellent Cycling Properties written by and published by . This book was released on 2016 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here we report evidence for the electrochemical activity of transition-metal carbodiimides versus lithium and sodium. In particular, iron carbodiimide, FeNCN, can be efficiently used as a negative electrode material for alkali-metal-ion batteries, similar to its oxide analogue FeO. Based on 57Fe M ssbauer and infrared spectroscopy (IR) data, the electrochemical reaction mechanism can be explained by the reversible transformation of the Fe NCN into Li/Na NCN bonds during discharge and charge. These new electrode materials exhibit higher capacity compared to well-established negative electrode references such as graphite or hard carbon. Contrary to its oxide analogue, iron carbodiimide does not require heavy treatments (nanoscale tailoring, sophisticated textures, coating etc.) to obtain long cycle life with density current as high as 9 A/g-1 for hundreds of charge/discharge cycles. Similar to the iron compound, several other transition-metal carbodiimides Mx(NCN)y with M = Mn, Cr, Zn can cycle successfully versus lithium and sodium. Ultimately, their electrochemical activity and performances open the way to the design of a novel family of anode materials.
Download or read book Na-ion Batteries written by and published by John Wiley & Sons. This book was released on 2021-03-11 with total page 384 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.
Book Synopsis Handbook of Solid State Chemistry, 6 Volume Set by : Richard Dronskowski
Download or read book Handbook of Solid State Chemistry, 6 Volume Set written by Richard Dronskowski and published by John Wiley & Sons. This book was released on 2017-10-23 with total page 3912 pages. Available in PDF, EPUB and Kindle. Book excerpt: This most comprehensive and unrivaled compendium in the field provides an up-to-date account of the chemistry of solids, nanoparticles and hybrid materials. Following a valuable introductory chapter reviewing important synthesis techniques, the handbook presents a series of contributions by about 150 international leading experts -- the "Who's Who" of solid state science. Clearly structured, in six volumes it collates the knowledge available on solid state chemistry, starting from the synthesis, and modern methods of structure determination. Understanding and measuring the physical properties of bulk solids and the theoretical basis of modern computational treatments of solids are given ample space, as are such modern trends as nanoparticles, surface properties and heterogeneous catalysis. Emphasis is placed throughout not only on the design and structure of solids but also on practical applications of these novel materials in real chemical situations.
Book Synopsis Coherent Wireless Power Charging and Data Transfer for Electric Vehicles by : Chih-Cheng Huang
Download or read book Coherent Wireless Power Charging and Data Transfer for Electric Vehicles written by Chih-Cheng Huang and published by Bentham Science Publishers. This book was released on 2022-01-04 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on reducing emissions and improving fuel economy, automotive manufacturers are developing electric vehicles (EV) to replace fuel and diesel vehicles starting in 2030 onwards. The EVs, with their green power supplies maximize environmental benefits with zero emissions thereby lowering air pollution levels. There is now an increased demand for stable electric storage systems (ESS) that are part of the design of new electric vehicles. This timely reference gives an overview of modern electrical power systems applied in the current generation of electric vehicles which require an ESS, and how these can be utilized for simultaneous power and data communication. The book starts with an introduction to the topic, before giving a summary of the green power trend for the electric vehicle market. The book then delves into the theoretical and analytical framework required to understand adaptive compensation of the magnetic inductive system (ACMIS), based on zero voltage switch (ZVS). The chapters demonstrate how these systems are used for transmitting electric power from a single-end inverter combined with a compensated network of parallel to parallel (P-P) type and an auto-tuning impedance of LC tank. The book also covers the experimental method for a multifunctional contactless power flow of the G2V mode and bidirectional outer communication and inner communication with giant magnetoresistance (GMR) effect for car parking guidance. The experiment shows how to analyze data transferring performance including the current trimming method and how to evaluate data transmission quality according to the relevant parameters. Overall the book serves to familiarize automotive engineers and industry professionals involved in the electric vehicle market with the issues that surround wireless power charging and data transfer systems for electric vehicles, and introduces them to more coherent designs.
Book Synopsis Chemical Bonding by : Richard Dronskowski
Download or read book Chemical Bonding written by Richard Dronskowski and published by Walter de Gruyter GmbH & Co KG. This book was released on 2023-10-04 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern DFT simulations of solids and molecules are typically based on the mighty plane-wave pseudopotential combination. Despite being numerically efficient, it does not allow for chemical conclusions unless the electronic structure is unitarily transformed into atomic orbitals. This primer for chemists and as well for physicists and engineers shows how to simply extract the chemistry and, hence, truly understand a plethora of real-world materials The goal of this humorous primer entertaining to read is to truly serve but not repel the reader. Recent in-person and also virtual summer schools in Europe and Asia have demonstrated the need for such a primer, also to be used for self-training
Book Synopsis Layered Transition Metal Sulfide-based Negative Electrode Materials for Lithium and Sodium Ion Batteries and Their Mechanistic Studies by : Suning Gao
Download or read book Layered Transition Metal Sulfide-based Negative Electrode Materials for Lithium and Sodium Ion Batteries and Their Mechanistic Studies written by Suning Gao and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nano-sized Transition Metal Oxide Negative Electrode Materials for Lithium-ion Batteries by : Mechthild Lübke
Download or read book Nano-sized Transition Metal Oxide Negative Electrode Materials for Lithium-ion Batteries written by Mechthild Lübke and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nanostructured Transition Metal Oxides as Negative Electrode Materials for Lithium-ion Batteries by : Wenlei Xu
Download or read book Nanostructured Transition Metal Oxides as Negative Electrode Materials for Lithium-ion Batteries written by Wenlei Xu and published by . This book was released on 2022* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nano-sized Transition Metal Oxide Negative Electrode Materials for Lithium-ion Batteries by : Mechthild Lubke
Download or read book Nano-sized Transition Metal Oxide Negative Electrode Materials for Lithium-ion Batteries written by Mechthild Lubke and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carbon and Metal Oxide Based Electrode Materials for Sodium Ion Batteries and Sodium Ion Capacitors by : Jia Ding
Download or read book Carbon and Metal Oxide Based Electrode Materials for Sodium Ion Batteries and Sodium Ion Capacitors written by Jia Ding and published by . This book was released on 2015 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is focused on the design and fabrication of carbon-based electrode materials for sodium-ion batteries (NIBs) and sodium-ion capacitors (NICs), as well as metal oxide (SnO2) based anode material for NIBs and lithium-ion batteries (LIBs). Na ion based energy storage systems are attracting significant interest as a potential lower cost alternative to Li ion based systems due to the geographically democratic reserves of the sodium metal. In its infancy, there is a strong demand for suitable electrode materials. In our first attempt, we created carbon materials (CPM-A) as NIB anodes, which exhibited many attractive electrochemical properties, similar to graphite as a LIB anode. An abundant wild plant, peat moss was chosen as the carbon precursor. The highly cross-linked polymer tissue of peat moss suppressed the nucleation of equilibrium graphite phase at high temperatures, instead transforming into highly ordered pseudographitic domains with substantially larger interlayer spacing (0.388nm) than that of graphite (0.335nm). These domains can provide Na intercalation sites analogous to the Li storage sites in graphite. By inheriting the unique cellular structure of peat moss leaves, CPM-A were composed of 3D macroporous frameworks of carbon nanosheets, which not only provided facile electrolyte access pathways but also greatly reduced the Na bulk diffusion distances. Benefiting from all these superiorities, the best CPM-A anode exhibited many highly desirable features, including low capacity voltage, negligible voltage hysteresis, high Coulombic efficiency, good cycling retention and high rate capacity. Based on this set of CPM-A specimens with tunable graphitic order, surface area and heteroatoms level, we also discovered the inner correlation between the physical/chemical properties of carbon and the galvanostatic voltage profile of the corresponding NIB anode, which provided important guidance for future carbon NIB anode design and preparation. In our second attempt, we built a Na-ion based hybrid capacitor device (NIC) which has spanned the energy-power divide between the traditional batteries and supercapacitors. Both the anode carbon and cathode carbon were entirely derived from a highly economical biowaste: peanut shell. By skillfully utilizing the heterogeneous tissue of peanut shell, an adsorption cathode carbon (PSNC) and an intercalation anode carbon (PSOC) were prepared using the outer and inner skin of peanut shell, respectively. The cathode carbon has a high surface area, a high level of oxygen doping and a unique hierarchically porous architecture, which all positively contribute to the excellent capacitive performance. On the contrary, the anode carbon is highly ordered with low surface area and low heteroatom doping, and thus provides large intercalation capacity in the low voltage region. By pre-sodiating the anode, the working voltage windows of both the cathode and anode in the full NIC cell were optimized. In more detail, the cathode swung within a wide voltage window from 1.5 to 4.2V hence the high adsorption capacity of PSNC was fully utilized. The anode was restricted within the low voltage region (below 0.1V), in order to achieve the largest possible working voltage window for the full device. Benefiting from the excellent electrochemical properties of electrode materials and the optimized working style of the electrodes, the resultant NIC devices can offer a state-of-the-art cyclically stable combination of energy and power densities, even comparable to the performances of previously reported Li-ion capacitors (LICs). In the third attempt, we tried to develop anode materials with high volumetric capacity for NIBs. SnO2 was chosen as the active material. A glucose mediated self-assembling method was employed to prepare a novel SnO2-carbon nanocomposite, which exhibited very promising cyclability and rate behavior as both a NIB and LIB anode. In addition to the advanced material synthesis, we also made systemic investigation on the fundamental energy storage mechanism of SnO2 anodes. Combining characterization methods of TEM, XRD and XPS, the phase transformations of SnO2 during the sodiation/desodiation, lithiation/delithiation processes have been studied in detail. These analyses have revealed the inner cause of the capacity discrepancy for SnO2 anode between Li and Na systems, which although frequently observed has never been explained. The much lower capacity of SnO2 anode against Na is due to the kinetic difficulty of Na-Sn alloying reaction to reach the terminal Na15Sn4 intermetallic. Therefore, a large portion of the active material only shuffles between SnO2 and Sn+NaO2. The characterization data also revealed a critical difference in the conversion reactions between the two systems. LiO2 is reduced directly to SnO2 and Li, whereas the NaO2 to SnO2 reaction proceeds through an intermediate SnO phase. These fundamental findings have great significance for future SnO2 anode development.
Book Synopsis Intercalation Compounds for Battery Materials by : Gholamabbas Nazri
Download or read book Intercalation Compounds for Battery Materials written by Gholamabbas Nazri and published by The Electrochemical Society. This book was released on 2000 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research on carbon-based and metal-based negative electrode materials via DFT calculation for high potassium storage performance: a review by : Yuefang Chen
Download or read book Research on carbon-based and metal-based negative electrode materials via DFT calculation for high potassium storage performance: a review written by Yuefang Chen and published by OAE Publishing Inc.. This book was released on 2023-10-12 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The key R&D concern in the domain of new energy in recent years has been the large-scale development of electrochemical energy storage. However, the steep increase in pricing has constrained the further expansion of lithium-ion batteries, primarily due to the ongoing depletion of their scarce lithium supplies. A potential candidate material at the moment is the potassium-ion battery (KIB), which has an anode made of carbon and/or an alloy and rich reserves, offering an excellent theoretical capacity and ideal working voltage. More significant advancements are still required to achieve long life and high energy density, despite the fact that some significant breakthroughs have been reported. The most recent findings from research on carbon-based [graphite, hard carbon (HC), and nanoporous carbon] and alloy-based (mainly including Sb, Sn, P, and its compounds) anodes for KIBs are compiled in this document. Numerous simulations at the atomic level based on particular chemical interactions, phase transitions, ion/electron transport dynamics, and conduction band spin utilizing density functional theory (DFT) calculations have been conducted to thoroughly investigate the storage mechanism of K+ on various electrode materials. Moreover, this paper examined contemporary structural modification techniques used in carbon- and alloy-based anode electrode materials and applied DFT calculations to confirm the advancement of its thorough tests. To promote the manufacturing of rechargeable KIBs, the challenges and potential of KIBs were also explored in future research.
Book Synopsis Synthesis, Structure and Electrochemistry of Positive Electrode Materials for Rechargeable Magnesium and Lithium Ion Batteries by : Xiaoqi Sun
Download or read book Synthesis, Structure and Electrochemistry of Positive Electrode Materials for Rechargeable Magnesium and Lithium Ion Batteries written by Xiaoqi Sun and published by . This book was released on 2017 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: To meet the requirements for high energy density storage systems, rechargeable batteries based on the “beyond lithium ion” technologies have been widely investigated. The magnesium battery is a promising candidate benefiting from the utilization of a Mg metal negative electrode, which offers high volumetric capacity (3833 mAh mL-1), low redox potential (-2.37 V vs. S.H.E.), non-dendritic growth, low price and safe handling in atmosphere. However, the discovery of potential positive electrode materials beyond the seminal Mo6S8 has been limited, mainly due to the sluggish mobility of a divalent Mg2+ ion in solid frameworks. This thesis presents the research on both finding new positive electrode materials and investigating mechanisms to understand the limitation. Two structures of titanium sulfide are identified as the second family of Mg2+ insertion positive electrodes, offering almost twice the capacity of the benchmark Mo6S8. The facile Mg2+ solid diffusion is mainly supported by the polarizable lattices, while the crystal structure plays a critical rule on the specific diffusion mechanism, which further influences the electrochemistry. While sulfides provide moderate energy density, it can be largely increased by shifting to oxide materials. However, poor electrochemistry has been widely observed for oxide based Mg positive electrode materials. In the present thesis work, a case study with birnessite MnO2 identifies desolvation as a key factor limiting Mg2+ insertion into oxides from nonaqueous electrolytes, while another study with Mg2Mo3O8 demonstrates the strong influence of transition states on setting the magnitude of migration barriers. Those limitations have to be overcome to allow facile Mg2+ insertion into oxides. Alternative setups which would accomplish the advantages of a Mg negative electrode and avoid the sluggish Mg2+ solid diffusion include the Mg-Li hybrid system. Two “high voltage” Prussian blue analogues (average 2.3 V vs. Mg/Mg2+) are investigated as positive electrode materials in the thesis, both showing promising energy density and cycle life. Finally, novel positive electrode materials for Li-ion batteries are examined. The possibility of stabilizing lithium transition-metal silicate in the olivine structure is studied by combined atomistic scale simulation and solid state synthesis, suggesting a potential solution by cation substitution.
Book Synopsis Mechanochemically Synthesized Conversion Electrodes and Their Application in Sodium and Lithium Ion Batteries with Diglyme Electrolytes by : Wolfgang Brehm
Download or read book Mechanochemically Synthesized Conversion Electrodes and Their Application in Sodium and Lithium Ion Batteries with Diglyme Electrolytes written by Wolfgang Brehm and published by . This book was released on 2021* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The strongly limited abundance of lithium (Li) and also that of other elements contained in a Li-ion battery (LIB) leads to the need of low-cost and more abundant alternatives. Sodium-ion batteries (SIBs) are a promising alternative as sodium (Na) cells show similar properties to the Li analogues in many cases and allow the use of more environmentally friendly and/or more abundant electrode materials. In comparison to the well-known and commercially used intercalation type electrodes, conversion electrodes enable the transfer of several electrons per formula unit of an electrode material and hence provide higher specific capacities. Conversion electrodes may be classified into alloys and transition metal compounds, both being studied within this dissertation. The first publication (doi: 10.1002/ente.201900389) in this cumulative thesis deals about the influence of the ball milling time onto the electrochemical performance for an SnSb/C intermetallic phase and Sn+Sb/C mixture as an example for alloy electrodes. Herein, it is found that longer milling leads to a more stable composite formation with carbon in order to enhance the cycle life for Sn+Sb and SnSb by galvanostatic cycling and in situ dilatometry studies. In the second publication (doi: 10.1016/j.powera.2020.100031) Cu3P is studied as a transition metal compound electrode, which is found to show a better electrochemical performance for the use of an ether electrolyte in comparison to carbonate electrolytes for both, LIBs and NIBs. In the last publication, (doi: 10.1002/adfm.201910583) a thiophosphate (Cu3PS4) was considered as an electrode material for the first time for NIBs which shows a by sulfur dominated redox activity with capacities of about 450 mAh g-1 after 1400 cycles @1 A g-1 in a voltage window between 0.01 and 2.5 V vs. Na+/Na. The results of this dissertation improve the understanding of using alloy and transition metal compound based conversion electrodes in diglyme electrolytes.
Book Synopsis The Effect of Transition Metals on Amorphous Alloy Negative Electrode Materials for Lithium-ion Batteries by : Michael David Fleischauer
Download or read book The Effect of Transition Metals on Amorphous Alloy Negative Electrode Materials for Lithium-ion Batteries written by Michael David Fleischauer and published by . This book was released on 2005 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Transition Metals on Amorphous Alloy Negative Electrode Materials for Lithium-ion Batteries by : Michael David Fleischauer
Download or read book The Effect of Transition Metals on Amorphous Alloy Negative Electrode Materials for Lithium-ion Batteries written by Michael David Fleischauer and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Si Alloy Negative Electrode Materials for Li-ion Batteries by : Simeng Cao
Download or read book Si Alloy Negative Electrode Materials for Li-ion Batteries written by Simeng Cao and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Si-based negative electrode materials are promising for lithium batteries. However, Si-based negative electrode materials suffer from huge volume change, crystallization effect (Li15Si4 formation), unstable solid electrolyte interface during cycling. Preparing Si/inactive materials and Si/C compounds (especially carbon coated Si materials) are two efficient methods to alleviate these problems mentioned above. This work focuses on designing and developing new Si-transition metal negative electrode materials. Si-Mo, Si-TiN, and Si-Ti-N-O alloys were prepared by Ar milling, N2 (g) milling, and air milling, respectively. Composition, morphology, and electrochemical performance of Si-Mo, Si-TiN, and Si-Ti-N-O alloys were investigated. Thermal stability of these alloys was also studied, since high thermal stability is an important requirement for preparing carbon coated Si negative electrode materials at high temperature. A preliminary study of high temperature carbon coating preparation for these Si alloys studied in this thesis and related issues were also discussed.
