Synthesis, Characterization and Aging Behavior of Silicate- and Phosphate Based Cathode Materials for Lithium Ion Batteries PDF Download
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Author: Christian Dippel
Publisher:
ISBN:
Category :
Languages : en
Pages : 260
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Author: Christian Dippel
Publisher:
ISBN:
Category :
Languages : en
Pages : 260
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Author: Pier Paolo Prosini
Publisher: Springer Science & Business Media
ISBN: 0857297457
Category : Technology & Engineering
Languages : en
Pages : 87
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Book Description
Iron Phosphate Materials as Cathodes for Lithium Batteries describes the synthesis and the chemical–physical characteristics of iron phosphates, and presents methods of making LiFePO4 a suitable cathode material for lithium-ion batteries. The author studies carbon’s ability to increase conductivity and to decrease material grain size, as well as investigating the electrochemical behaviour of the materials obtained. Iron Phosphate Materials as Cathodes for Lithium Batteries also proposes a model to explain lithium insertion/extraction in LiFePO4 and to predict voltage profiles at various discharge rates. Iron Phosphate Materials as Cathodes for Lithium Batteries is written for postgraduate students and researchers in electrochemistry, R&D professionals and experts in electrochemical storage.
Author: Feray Chi Hung Wong
Publisher:
ISBN:
Category : Lithium cells
Languages : en
Pages : 110
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Book Description
Author: Madhav Singh
Publisher:
ISBN: 9783844014051
Category :
Languages : en
Pages : 166
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Book Description
Author: Youngmin Chung
Publisher:
ISBN: 9781369137149
Category : Cathodes
Languages : en
Pages : 159
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Author: Evelyn Kai-Hua Ng
Publisher:
ISBN: 9780494213032
Category :
Languages : en
Pages : 110
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Book Description
Lithium ion batteries deliver the highest specific energy and energy density of commercially available secondary batteries. The objective of this study was to evaluate lithium-manganese phosphate (LiMnPO4) for potential application as a cathode material in lithium ion batteries due to its high theoretical capacity and stable phospho-olivine structure. LiMnPO 4 was successfully synthesized via a novel aqueous sol-gel process under an inert nitrogen and air atmosphere. Microstructural design strategies including annealing treatment and the addition of 1 wt% copper dopant were evaluated in order to improve the electrochemical performance of the LiMnPO4 cathode. The cathode particle microstructure and morphology were characterized using X-ray diffraction and scanning electron microscopy. Open circuit voltage was 4.1 V for all samples. The electrochemical performance of LiMnPO 4 is significantly improved by the addition of a dopant in an inert nitrogen atmosphere with a specific capacity of 28 mAh/g achieved during the first discharge cycle.
Author: Karen Galoustov
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Gouri Cheruvally
Publisher: Trans Tech Publications Ltd
ISBN: 3038132403
Category : Technology & Engineering
Languages : en
Pages : 140
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Book Description
Since the first development of lithium-ion batteries in the early 1990s, there have been tremendous advances in the science and technology of these electrochemical energy sources. At present, lithium batteries dominate the field of advanced power sources and have almost entirely replaced their bulkier and less energetic counterparts such as nickel-cadmium and nickel-metalhydride batteries; especially in portable electronic devices. But lithium batteries are still the object of continuing intense research aimed at making further improvements in performance and safety, at lower cost, so as to make them suitable for higher-power and more demanding applications such as electric vehicles. The research and development of new electrode materials, particularly for cathodes, having an improved electrochemical performance has always been a matter of changing focus. Thus, olivine, lithium iron phosphate, has attracted considerable attention in recent years as a safe, environmentally friendly, extremely stable and very promising cathode material.
Author: Dong Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 282
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Author: Huijing Wei
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
"Lithium metal orthosilicates (Li2MSiO4) are attracting attention as one of the next generation cathode materials for automotive lithium-ion batteries (LIBs). In this thesis, lithium iron silicate (Li2FeSiO4, or LFS) crystals were successfully synthesized using a two-step method involving organic-assisted hydrothermal precipitation of an intermediate and annealing in reducing (5% H2) atmosphere. The hydrothermal synthesis step was conducted in the presence of organic additives, namely ethylenediamine (EN) and ethylene glycol (EG) that are known crystal growth control agents. The annealing-induced crystallization and structural transformation of the hydrothermally obtained intermediate into monoclinic and/or orthorhombic LFS phases was studied using X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It was found that LFS annealed at 400°C exhibits monoclinic nanocrystalline (10-20 nm size) structure whereas annealing at 900°C produces dense orthorhombic phase crystals (500 nm). Intermediate temperature annealing leads to mixed phase LFS. During annealing the organic components were found to decompose forming a carbon coating as determined by surface-sensitive Raman spectroscopy and X-ray photoelectron spectroscopy (XPS)." --
