Download or read book Design Synthesis and Characterization of Novel Materials to Construct High energy density Rechargeable Cells written by Zheng Yue and published by . This book was released on 2018 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Synthesis and Characterization of Novel Electrolytes for Lithium ion Batteries written by Kan Luo and published by . This book was released on 2009 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of Novel High Energy Density Cathode Materials for Lithium Rechargeable Batteries written by Stephen L. Bewlay and published by . This book was released on 2006 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Synthesis and Characterization of Novel Materials for Use in Secondary Lithium ion Batteries written by Richard L. Nafshun and published by . This book was released on 1996 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Design Synthesis and Characterization of Novel Electronic Organic Materials written by Wesley Thomas Walker and published by . This book was released on 2009 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Novel Lithium Ion Battery Cathode Materials Produced Via Assisted Soft Chemistry written by Jason Rogers Brown and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diamond Research Frontiers on Electrochemical Energy Storage Materials Design Synthesis Characterization and Modeling written by F. Wang and published by . This book was released on 2014 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Synthesis and Characterization of Small molecule Materials for Organic Solar Cells written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Novel Cathode Materials for Lithium Sulfur Batteries and Their Use in Energy Storage Systems written by Qian Du and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen rich High Energy Density Materials written by Niko Fischer and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Energy Density Lithium Batteries written by Katerina E. Aifantis and published by John Wiley & Sons. This book was released on 2010-03-30 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials Engineering for High Density Energy Storage provides first-hand knowledge about the design of safe and powerful batteries and the methods and approaches for enhancing the performance of next-generation batteries. The book explores how the innovative approaches currently employed, including thin films, nanoparticles and nanocomposites, are paving new ways to performance improvement. The topic's tremendous application potential will appeal to a broad audience, including materials scientists, physicists, electrochemists, libraries, and graduate students.
Download or read book Synthesis Characterization Scale up and Investigation of Structure property Relationships of High Energy Density Materials written by Dominik Ernst Dosch and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Synthesis and Characterization of Novel Lead free Multiferroic and Relaxor Materials written by Hsin Yu Wu and published by . This book was released on 2019 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: New multiferroic solid solutions of (1-x)BiFeO3-xBaHfO3 (BF-BaHf) with x = 0.05 - 0.95 has been prepared by conventional solid-state reaction in the form of ceramics. X-ray powder diffraction revealed that the perovskite structure of BF-BaHf transfers from rhombohedral to cubic symmetry with the increasing concentration of BaHf, resulting in the formation of solid solution. Compared with pure BF, the ferromagnetism in the BF-BaHf solid solution is substantially enhanced by the structural distortion due to A-and B-site co-substitutions, with remanent magnetization Mr = 0.0469 ????" ⁄????. ???? in x = 0.15. Meanwhile, ferroelectric domains were observed by transmission electron microscopy for x = 0.15. This confirms the beneficial role of BaHf substitution in enhancing magnetic properties while maintaining ferroelectric properties of the BF-based multiferroic materials. Another new multiferroic solid solution of pseudo-binary system (1-x)[0.8BiFeO3- 0.2BaHfO3]-xBaTiO3 [(1-x)(0.8BF-0.2BaHf)-xBaT] has been successfully synthesized by solid state reaction with x = 0.15 - 0.95. All the composition studies showed a gradual phase transition from rhombohedral to tetragonal phase as the BaT concentration increases. A morphotropic phase boundary is found in the composition range of 0.70
Download or read book Synthesis and Characterization of Nanostructured Mixed valent Compounds for Electrochemical Energy Storage Devices written by Min Kyu Song and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The performances of current electrical energy storage systems (both batteries and electrochemical capacitors) are not capable of meeting the ever-increasing demands of emerging technologies. This is because batteries often suffer from slow power delivery, limited life-time, and long charging time whereas electrochemical capacitors suffer from low energy density. While extensive efforts have been made to the development of novel electrode materials, progress has been hindered by the lack of a profound understanding on the complex charge storage mechanism. Therefore, the main objective of this research is to develop novel electrode materials which can exhibit both high energy and power density with prolonged life-time and to gain a fundamental understanding of their charge storage mechanism. \r : \r : First, nanostructured, thin, and conformal coatings of transition metal oxides have been deposited onto three-dimensional porous substrates of current collectors to form composite electrodes. The structures and compositions of the oxide coatings are further altered by a controlled annealing process and characterized by electron microscopy and spectroscopy, laboratory X-ray diffraction, gas adsorption analysis, and in-situ and ex-situ synchrotron-enabled X-ray diffraction and absorption spectroscopy. The structural features have also been correlated with the electrochemical behavior of the transition metal oxides as an electrode in an electrochemical capacitor. It is found that the electrochemical performance of the composite electrodes depends sensitively on the composition, nanostructure, and morphology of the oxide coatings. When optimized, the electrodes displayed the highest energy and power density with excellent cycling life among all materials reported for electrochemical capacitors. Finally, new charge storage mechanisms have also been proposed for the novel electrode materials based on insights gained from in-situ synchrotron-based X-ray absorption spectroscopy.
Download or read book Materials for Energy written by Sam Zhang and published by CRC Press. This book was released on 2020-10-05 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses a wide range of material types, such as nanomaterials, carbonaceous electrocatalysts and electrolytes, thin films, phase change materials, 2D energy materials, triboelectric materials, and membrane materials Describes such applications as flexible energy storage devices, sensors, energy storage batteries, fuel and solar cells, photocatalytic wastewater treatment, and more Aimed at researchers and technologists working to solve alternative energy issues
Download or read book Design and Synthesis of Nanostructured Materials for Flexible Lithium Ion Battery written by Xing Lu and published by . This book was released on 2020 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, continuous progress in electronic devices, especially in wearable devices, has attracted surging attention from the consumer market. Therefore, flexible energy storage was developed to fulfill the needs of new flexible devices with ultra-lightweight and small volume. The very recent products and concepts such as touch screens, roll-up displays, wearable sensors, and even implantable medical devices have shown great potential in flexible applications because of their extreme convenience. However, the development of corresponding power sources largely lags behind these emerging technologies of flexible devices. Lithium-ion batteries (LIBs), owing to high energy density and high operating voltage, have been serving as an ideal power source for flexible devices. Nevertheless, direct implementation of commercial LIBs leads to irreversible deformation of structural integrity, short-circuiting or even severe explosion hazard. Such dilemma originates from the poor flexibility of electrode and electrolyte. For electrode side, current electrode sheets used in LIBs are manufactured by holding active material particles and conductive agents by a small weight fraction of polymeric binders. Such fragile electrode structure could easily lose electrical contact under physical deformation, leading to disintegrated electrode sheets, drastic degradations of electrochemical performance, and even safety issue due to internal short-circuiting. For electrolyte side, LIBs employ nonaqueous liquid electrolyte with high ionic conductivity and excellent electrode wettability. However, the drawbacks of such electrolyte system are also evident: poor ion selectivity, flammability, and leakage issue while being deformed render unsuitability of liquid electrolyte for flexible device application. To fabricate flexible LIBs, the current state-of-the-art research employs two design strategies involving electrode structure. One popular strategy is constructing scaffolding structure using carbonaceous materials to function as supportive matrix for active materials. Given carbon nanotubes (CNTs) as an example, the CNTs possess remarkable electrical conductivity and mechanical strength (elastic modulus: 1 TPa, tensile strength: 100 GPa), which contribute to conductive and flexible electrodes as the high-aspect ratio of CNTs can serve as threading materials. Another strategy is rational architecture design of active materials that are conventionally particulate. For example, vanadium pentoxide nanowires can be readily fabricated into free-standing and binder-free electrode membrane. Nevertheless, the most of strategies above still fall short of practicality due to reduced portion of active materials and consequently compromised energy density. In comparison with the mobile liquid electrolyte, the emerging solid-state electrolytes could largely solve circumventing issues of ion selectivity, flammability and leakage. As one prevailing category, solid polymer electrolytes comprising polymers and lithium salts feature decent manufacturing flexibility. Meanwhile, their poor ionic conductivity (10 8 ~ 10 5S cm 1) could be ameliorated by gel polymer electrolytes with organic solvents (plasticizers) and/or inorganic solid fillers (e.g., SiO2). Nevertheless, the non-conductive fillers block ion-transport pathways while allow partial electrical conduction, limiting the interfacial engineering and compatibility with electrodes. In this dissertation, we tackle the aforementioned critical issues of flexible batteries in two aspects. Firstly, we design and synthesize flexible electrode from prospective of material and architecture. A novel cathode constructed by entangling networks of V2O5, CNTs and polytetrafluoroethylene (PTFE) is design and fabricated. Notably, the resulting flexible battery simultaneously achieves excellent mechanical strength (800 MPa young's module), superior cycle durability (86% retention after 1000 times bending) and intriguing capacity (300 mAh g-1 at 0.25C). Furthermore, a Zr-based metal-organic framework (MOF) possessing open-metal sites (OMSs) was used as the microporous filler to facilitate cation (Li+) conduction in GPL. Compared with the state-of-the-art research, our work significantly enhanced tLi+ of GLP from 0.39 up to 0.66 while maintained 1.5 mS cm 1 ionic conductivity. Notably, a reduced thermal activation energy (from 113 to 76 meV) was observed, suggesting diffusion energy barriers was eased by selective promotion of Li+ conduction. To conclude, flexible Li-ion batterie system research is still at early developing stage. Above work provides rational design and improvement of the current FLIBs system in rather facile and cost-effective way. The methodology we proposed are hoped to bring further innovation toward FLIBs field and be extended to numerous applications in the future.
Download or read book Synthesis and Characterization of Novel Molecular Organic Materials for Clean Energy Applications written by Ewa Krystyna Gorski and published by . This book was released on 2013 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
