Search for dissertations about: "li2fesio4"

Found 4 swedish dissertations containing the word li2fesio4.

2. 1. Low-Cost Iron-Based Cathode Materials for Large-Scale Battery Applications

   Author : Anton Nytén; Josh Thomas; Jean-Marie Tarascon; Uppsala universitet; []
   Keywords : Inorganic chemistry; Li-ion battery; cathode material; lithium iron phosphate; lithium iron silicate; X-ray powder diffraction; Mössbauer spectroscopy; photoelectron spectroscopy; Oorganisk kemi;

   Abstract : There are today clear indications that the Li-ion battery of the type currently used worldwide in mobile-phones and lap-tops is also destined to soon become the battery of choice in more energy-demanding concepts such as electric and electric hybrid vehicles (EVs and EHVs). Since the currently used cathode materials (typically of the Li(Ni,Co)O2-type) are too expensive in large-scale applications, these new batteries will have to exploit some much cheaper transition-metal. READ MORE

4. 2. Computational Studies of Nanotube Growth, Nanoclusters and Cathode Materials for Batteries

   Author : Peter Larsson; Rajeev Ahuja; Priya Vashishta; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Materials science; density functional theory; cathode materials; hydrogen-storage materials; carbon nanotube growth; Computational physics; Beräkningsfysik; materiefysik; Physics of Matter; materialvetenskap; Materials Science;

   Abstract : Density functional theory has been used to investigate cathode materials for rechargeable batteries, carbon nanotube interactions with catalyst particles and transition metal catalyzed hydrogen release in magnesium hydride nanoclusters. An effort has been made to the understand structural and electrochemical properties of lithium iron silicate (Li2FeSiO4) and its manganese-doped analogue. READ MORE

5. 3. Stability Phenomena in Novel Electrode Materials for Lithium-ion Batteries

   Author : Mårten Stjerndahl; Torbjörn Gustafsson; John O. Thomas; Robert M. Kostecki; Uppsala universitet; []
   Keywords : Inorganic chemistry; Li-ion battery; electrode material; intermetallic; AlSb; lithium iron phosphate; lithium iron silicate; photoelectron spectroscopy; Oorganisk kemi;

   Abstract : Li-ion batteries are not only a technology for the future, they are indeed already the technology of choice for today’s mobile phones, laptops and cordless power tools. Their ability to provide high energy densities inexpensively and in a way which conforms to modern environmental standards is constantly opening up new markets for these batteries. READ MORE

6. 4. 3d Transition Metals Studied by Mössbauer Spectroscopy

   Author : Saeed Kamali-Moghaddam; Roger Wäppling; Lennart Häggström; Friedrich Wagner; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Mössbauer Spectroscopy; SQUID Magnetometry; XRD; Layered Structures; Magnetism; Magnetic Superlattices; Nanoparticles; Li-ion Batteries; Brass; Fysik; Physics; Fysik;

   Abstract : Layered crystals with magnetic elements as Co and Fe have been studied. In TlCo2Se2, where Co atoms in one sheet are separated by Tl and Se from the next Co sheet, magnetic interaction within and between the sheets have been studied. READ MORE