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Showing 1 to 20 of 1526 for “"Lithium"”.
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Novel lithium iron phosphate materials for lithium-ion batteries
… associated with portable energy storage devices. Lithium-ion batteries can repeatedly generate clean energy from stored materials and convert reversely electric into chemical energy. The performance of lithium-ion batteries depends intimately on the properties of their materials. Presently used …
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Multifunctioning Electrocatalytic Cathodes for Lithium-Air and Lithium-Oxygen Batteries
Despite its historical success, currently, the limited energy density in Li-ion batteries restricts the electrifying of transportation into small and medium-scale vehicles. On the contrary, Li- O2 batteries (LOBs) and Li-air batteries (LABs) with larger theoretical energy density are capable of …
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Helium-3-Induced Reactions in Lithium-6 and Lithium-7
Made available in DSpace on 2015-05-12T21:41:44Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6808026.PDF: 1644948 bytes, checksum: 06930a43f0d2ad364fb519320612c0ff (MD5) Previous issue date: 1967
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Directed lithium transport in high capacity lithium-ion battery electrodes
Lithium-ion batteries enable a modern, mobile society and are a widely used source of portable energy storage. Chapter 1 provides background and motivation for improving lithium-ion battery performance. Specifically these batteries still need improvements in terms of specific energy, specific …
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Printable lithium batteries
Printable lithium iron phosphate (LiFePO4) cathodes and porous aerogel / polymer separators have been designed, constructed, and tested. The cathodes consist of LiFePO4, PVDF binder, and conductive carbon which was developed for robocast deposition (printing) onto carbon coated aluminum substrates …
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Nanostrucured Lithium Iron Phosphate As Cathode Material For Lithium Ion-Batteries
<p>Lithium-ion batteries are the power source of choice for portable electronics, power tools and electric-based transportation. This outstanding commercial success has spawned great international interest in applying this technology to systems that demand higher power, such as the electric …
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Light-induced ferroelectric domain engineering in lithium niobate & lithium tantalate
… on ferroelectric domain engineering in lithium niobate and lithium tantalate is investigated. The conventional method of domain inversion is electric field poling, which suffers from several limitations such as a requirement for photolithography and high-voltage equipment, the formation …
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Direct UV writing of structures in lithium niobate and lithium tantalate
… fabrication of UV direct write structures in lithium niobate and lithium tantalate. Unassisted direct writing of surface channel waveguides using lambda = 244 nm cw light resulted in polarisation specific waveguides fabricated on z- cut crystals. Waveguides were characterised using mode …
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Electrochemical studies of lithium-oxygen reactions for lithium-air battery applications
Fundamentally understanding reaction mechanisms during Li-O₂ cell operation is critical for implementing Li-air batteries with high reversibility and long cycle life. In this thesis, the rotating ring disk electrode (RRDE) technique has been used to probe the influence of different electrolyte …
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Stability of lithium aluminum manganese oxide cathodes for rechargeable lithium batteries
Lithium manganese oxides have attracted wide attention as low-cost, nontoxic intercalation cathode materials for rechargeable lithium batteries. In this work, the stability of these compounds during synthesis and in use has been studied in several respects. (1) Phase stability of LiMnO2 polymorphs …
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Recovery and regeneration of lithium manganese oxide from spent lithium-ion batteries
… a method for recovering and regenerating Lithium Manganese Oxide (LMO) from spent Lithium-polymer batteries in order to recycle it in an environmentally friendly way. Two different processes for separating LMO were developed and the environmental impact of the two processes was analyzed. A …
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Electrochemical Reduction of Lithium-Metavanadate in Molten Lithium-Chloride - Potassium-Chloride Eutectic
Made available in DSpace on 2014-12-10T23:01:30Z (GMT). No. of bitstreams: 1 7317151.pdf: 4157958 bytes, checksum: 20761e959f60e8ad2ef9582738d19bab (MD5) Previous issue date: 1972
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Synthesis and characterization of lithium-manganese-oxide electrodes for lithium battery applications
… rechargeable batteries, is increasing. Lithium batteries have several advantages over other competitive systems. Coupled with the inexpensive and environmentally friendly manganese dioxide, Li/MnO₂ batteries are being used extensively for powering a range of devices, but particular …
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MULTI-IONIC LITHIUM SALTS FOR USE IN SOLID POLYMER ELECTROLYTES FOR LITHIUM BATTERIES
Commercial lithium ion batteries use liquid electrolytes because of their high ionic conductivity (>10-3 S/cm) over a broad range of temperatures, high dielectric constant, and good electrochemical stability with the electrodes (mainly the cathode cathode). The disadvantages of their use in lithium …
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Thermal ionization energy of lithium and lithium-oxygen complexes in single-crystal silicon
The ionization energy of lithium as an impurity in single-crystal silicon has recently been determined by optical means to be dependent upon the amount of oxygen in the silicon. It was found that for float-zone crystals, having a relatively low oxygen content (less than 10¹⁶ cm⁻³), the ionization …
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Beyond Lithium-Ion Technology: Lithium-Sulfur and Potassium-Ion for Better and Cheaper Batteries
… components to power a sustainable future. While lithium-ion batteries (LIBs) have revolutionised our modern lifestyles, the cost of lithium resources and limited energy density that can be safely accessed have limited their potential as large-scale energy storage systems. Lithium-sulfur batteries …
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Ab Initio Prediction of Metal Phosphide Anode Materials for Lithium and Beyond Lithium Batteries
Identifying high capacity battery materials is critical for creating better energy storage to lower our reliance on non-renewable energy resources. While Li-ion batteries are the state-of-the-art, their graphite anodes are limited by a theoretical capacity of 372 mAh/g. Phosphorus is one …
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Investigation into Lithium-Ion Conductivity and Redox Stability of Selenium-Doped Lithium Lanthanum Titanate
Selenium-doped lithium lanthanum titanate of composition Li₀.₃₃La₀.₅₆Ti₁₋ₓSeₓO3 (x = 0, 0.025, 0.050, 0.075) was attempted using a two-step conventional synthesis process to investigate the potential of the material as a solid-state electrolyte in lithium-ion batteries. Impedance spectroscopy data …
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Composite Multifunctional Lithium Ion Batteries
… then compared to the performance of conventional lithium ion materials to see which of the pretreatments improved the carbon fiber's performance. In addition to this electrochemical testing, flexure and tensile mechanical data of various geometries of perforated pouch cell architectures were …
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