Sökning: "lithium iron silicate"

Hittade 4 avhandlingar innehållade orden lithium iron silicate.

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

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

   Sammanfattning : 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. LÄS MER

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

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

   Sammanfattning : 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. LÄS MER

4. 3. All silicon lithium-ion batteries

   Författare :Chao Xu; Torbjörn Gustafsson; Kristina Edström; Daniel Brandell; Ola Nilson; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Lithium-ion batteries have been widely used as power supplies for portable electronic devices due to their higher gravimetric and volumetric energy densities compared to other electrochemical energy storage technologies, such as lead-acid, Ni-Cd and Ni-MH batteries. Developing a novel battery chemistry, ‘‘all silicon lithium-ion batteries’’, using lithium iron silicate as the cathode and silicon as the anode, is the primary aim of this Ph. LÄS MER

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

   Författare :Peter Larsson; Rajeev Ahuja; Priya Vashishta; Uppsala universitet; []
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER