Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Thermochemical And Electrochemical Investigations Of Linimncoo2 Nmc As Positive Electrode Material For Lithium Ion Batteries
Download Thermochemical And Electrochemical Investigations Of Linimncoo2 Nmc As Positive Electrode Material For Lithium Ion Batteries full books in PDF, epub, and Kindle. Read online Thermochemical And Electrochemical Investigations Of Linimncoo2 Nmc As Positive Electrode Material For Lithium Ion Batteries ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Thermochemical and Electrochemical Investigations of Li(Ni,Mn,Co)O2 (NMC) as Positive Electrode Material for Lithium-ion Batteries by : Maryam Masoumi
Download or read book Thermochemical and Electrochemical Investigations of Li(Ni,Mn,Co)O2 (NMC) as Positive Electrode Material for Lithium-ion Batteries written by Maryam Masoumi and published by . This book was released on 2020* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis STUDY AND DEVELOPMENT OF LAYERED LI-NI-MN-CO OXIDE POSITIVE ELECTRODE MATERIALS FOR LITHIUM ION BATTERIES. by : Jing Li
Download or read book STUDY AND DEVELOPMENT OF LAYERED LI-NI-MN-CO OXIDE POSITIVE ELECTRODE MATERIALS FOR LITHIUM ION BATTERIES. written by Jing Li and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Layered Li-Ni-Mn-Co oxides (NMC) with low cobalt content are promising positive electrode materials for Li-ion batteries. However, the detailed structural properties of these materials are still debated. This thesis work, in part, focused on a systematic study of layered NMC samples to understand the dependence of electrochemical properties on structure and transition metal composition, as well as the structural evolution of layered NMC materials during lithium intercalation. The calendar and cycle lifetimes of lithium-ion cells are affected by the structural stability of active electrode materials as well as parasitic reactions between the charged electrode materials and electrolyte that occur in lithium-ion batteries. It is necessary to explore the failure mechanisms of layered NMC/graphite cells to guide future improvements. This thesis work, in part, thoroughly studied the failure mechanisms of LiNi0.8Mn0.1Co0.1O2/graphite cells from the perspectives of the bulk structural stability, surface structure reconstruction and electrolyte oxidation. Core-shell (CS) structured positive electrode materials based on layered NMC could be the next generation of positive electrode materials for high energy density lithium-ion batteries. This is because a high energy core material (Ni-rich NMC), with poor stability against the electrolyte, can be protected by a thin layer of a stable and active shell material with lower Ni and higher Mn content. A large part of this thesis focused on the development of CS materials using Li-rich and Mn-rich materials as the protecting shell for voltages above 4.5 V, and on an understanding of inter-diffusion phenomena observed during the synthesis of core-shell materials.
Book Synopsis Structural and Electrochemical Studies of Positive Electrode Materials in the Li-Mn-Ni-O System for Lithium-ion Batteries by : Aaron William Rowe
Download or read book Structural and Electrochemical Studies of Positive Electrode Materials in the Li-Mn-Ni-O System for Lithium-ion Batteries written by Aaron William Rowe and published by . This book was released on 2014 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT Cont.'d : Finally, high precision coulometry studies of one Li-deficient and two Li-rich single-phase layered compositions are discussed. These materials exhibit minimal oxidation of simple carbonate-based electrolyte when cycled to high potential, with the Li-deficient composition producing less electrolyte oxidation at 4.6 V vs. Li/Li+ than commercial Li[Ni1/3Mn1/3Co1/3]O2 at 4.2 V. The inherent inertness of this composition may make it suitable for use as a thin protective layer in a core-shell particle.
Book Synopsis Studies on Two Classes of Positive Electrode Materials for Lithium-ion Batteries by :
Download or read book Studies on Two Classes of Positive Electrode Materials for Lithium-ion Batteries written by and published by . This book was released on 2008 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of advanced lithium-ion batteries is key to the success of many technologies, and in particular, hybrid electric vehicles. In addition to finding materials with higher energy and power densities, improvements in other factors such as cost, toxicity, lifetime, and safety are also required. Lithium transition metal oxide and LiFePO4/C composite materials offer several distinct advantages in achieving many of these goals and are the focus of this report. Two series of layered lithium transition metal oxides, namely LiNi1/3Co1/3-yMyMn1/3O2 (M=Al, Co, Fe, Ti) and LiNi0.4Co0.2-yMyMn0.4O2 (M = Al, Co, Fe), have been synthesized. The effect of substitution on the crystal structure is related to shifts in transport properties and ultimately to the electrochemical performance. Partial aluminum substitution creates a high-rate positive electrode material capable of delivering twice the discharge capacity of unsubstituted materials. Iron substituted materials suffer from limited electrochemical performance and poor cycling stability due to the degradation of the layered structure. Titanium substitution creates a very high rate positive electrode material due to a decrease in the anti-site defect concentration. LiFePO4 is a very promising electrode material but suffers from poor electronic and ionic conductivity. To overcome this, two new techniques have been developed to synthesize high performance LiFePO4/C composite materials. The use of graphitization catalysts in conjunction with pyromellitic acid leads to a highly graphitic carbon coating on the surface of LiFePO4 particles. Under the proper conditions, the room temperature electronic conductivity can be improved by nearly five orders of magnitude over untreated materials. Using Raman spectroscopy, the improvement in conductivity and rate performance of such materials has been related to the underlying structure of the carbon films. The combustion synthesis of LiFePO4 materials allows for the formation of nanoscale active material particles with high-quality carbon coatings in a quick and inexpensive fashion. The carbon coating is formed during the initial combustion process at temperatures that exceed the thermal stability limit of LiFePO4. The olivine structure is then formed after a brief calcination at lower temperatures in a controlled environment. The carbon coating produced in this manner has an improved graphitic character and results in superior electrochemical performance. The potential co-synthesis of conductive carbon entities, such as carbon nanotubes and fibers, is also briefly discussed.
Book Synopsis Synthesis, Structure and Electrochemistry of Positive Electrode Materials for Rechargeable Magnesium and Lithium Ion Batteries by : Xiaoqi Sun
Download or read book Synthesis, Structure and Electrochemistry of Positive Electrode Materials for Rechargeable Magnesium and Lithium Ion Batteries written by Xiaoqi Sun and published by . This book was released on 2017 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: To meet the requirements for high energy density storage systems, rechargeable batteries based on the “beyond lithium ion” technologies have been widely investigated. The magnesium battery is a promising candidate benefiting from the utilization of a Mg metal negative electrode, which offers high volumetric capacity (3833 mAh mL-1), low redox potential (-2.37 V vs. S.H.E.), non-dendritic growth, low price and safe handling in atmosphere. However, the discovery of potential positive electrode materials beyond the seminal Mo6S8 has been limited, mainly due to the sluggish mobility of a divalent Mg2+ ion in solid frameworks. This thesis presents the research on both finding new positive electrode materials and investigating mechanisms to understand the limitation. Two structures of titanium sulfide are identified as the second family of Mg2+ insertion positive electrodes, offering almost twice the capacity of the benchmark Mo6S8. The facile Mg2+ solid diffusion is mainly supported by the polarizable lattices, while the crystal structure plays a critical rule on the specific diffusion mechanism, which further influences the electrochemistry. While sulfides provide moderate energy density, it can be largely increased by shifting to oxide materials. However, poor electrochemistry has been widely observed for oxide based Mg positive electrode materials. In the present thesis work, a case study with birnessite MnO2 identifies desolvation as a key factor limiting Mg2+ insertion into oxides from nonaqueous electrolytes, while another study with Mg2Mo3O8 demonstrates the strong influence of transition states on setting the magnitude of migration barriers. Those limitations have to be overcome to allow facile Mg2+ insertion into oxides. Alternative setups which would accomplish the advantages of a Mg negative electrode and avoid the sluggish Mg2+ solid diffusion include the Mg-Li hybrid system. Two “high voltage” Prussian blue analogues (average 2.3 V vs. Mg/Mg2+) are investigated as positive electrode materials in the thesis, both showing promising energy density and cycle life. Finally, novel positive electrode materials for Li-ion batteries are examined. The possibility of stabilizing lithium transition-metal silicate in the olivine structure is studied by combined atomistic scale simulation and solid state synthesis, suggesting a potential solution by cation substitution.
Book Synopsis Synthesis and Characterization of Lini0. 6mn0. 35co0. 05o2 and Li2fesio4/C As Electrodes for Rechargeable Lithium Ion Battery by : Pengda Hong
Download or read book Synthesis and Characterization of Lini0. 6mn0. 35co0. 05o2 and Li2fesio4/C As Electrodes for Rechargeable Lithium Ion Battery written by Pengda Hong and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Synthesis and characterization of LiNi0.6Mn0.35Co0.05O2 and Li2FeSiO4/C as electrodes for rechargeable lithium ion battery" by Pengda, Hong, 洪鹏达, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: The rechargeable lithium ion batteries (LIB) are playing increasingly important roles in powering portal commercial electronic devices. They are also the potential power sources of electric mobile vehicles. The first kind of the cathode materials, LiXCoO2, was commercialized by Sony Company in 1980s, and it is still widely used today in LIB. However, the high cost of cobalt source, its environmental unfriendliness and the safety issue of LiXCoO2 have hindered its widespread usage today. Searching for alternative cathode materials with low cost of the precursors, being environmentally benign and more stable in usage has become a hot topic in LIB research and development. In the first part of this study, lithium nickel manganese cobalt oxide (LiNi0.6Mn0.35Co0.05O2) is studied as the electrode. The materials are synthesized at high temperatures by solid state reaction method. The effect of synthesis temperature on the electrochemical performance is investigated, where characterizations by, for example, X-ray diffraction (XRD) and scanning electron microscopy (SEM), for particle size distribution, specific surface area, and charge-discharge property, are done over samples prepared at different conditions for comparison. The electrochemical tests of the rechargeable Li ion batteries using LiNi0.6Mn0.35Co0.05 cathode prepared at optimum conditions are carried out in various voltage ranges, at different discharge rates and at high temperature. In another set of experiments, the material is adopted as anode with lithium foil as the cathode, and its capacitance is tested. In the second part of this study, the iron based cathode material is investigated. Lithium iron orthosilicate with carbon coating is synthesized at 700℃ by solid state reaction, which is assisted by high energy ball milling. Characterizations are done for discharge capacities of the samples with different carbon weight ratio coatings. DOI: 10.5353/th_b4715029 Subjects: Lithium ion batteries Cathodes Lithium compounds - Synthesis Cobalt compounds - Synthesis Manganese compounds - Synthesis Silicon compounds - Synthesis Iron compounds - Synthesis
Author :Tracy Alexandra Kerr Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 :9780612772366 Total Pages :516 pages Book Rating :4.7/5 (723 download)
Book Synopsis Synthesis, Characterization, and Electrochemical Investigation of Novel Electrode Materials for Lithium Ion Batteries [microform] by : Tracy Alexandra Kerr
Download or read book Synthesis, Characterization, and Electrochemical Investigation of Novel Electrode Materials for Lithium Ion Batteries [microform] written by Tracy Alexandra Kerr and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2002 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural and Electrochemical Study of Positive Electrode Materials for Rechargeable Lithium Ion Batteries by : Meng Jiang
Download or read book Structural and Electrochemical Study of Positive Electrode Materials for Rechargeable Lithium Ion Batteries written by Meng Jiang and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigating Disordered Positive Electrode Materials for Lithium-Ion Batteries Using Li(1+x)Ti2xFe(1-3x)O2 by : Stephen Glazier
Download or read book Investigating Disordered Positive Electrode Materials for Lithium-Ion Batteries Using Li(1+x)Ti2xFe(1-3x)O2 written by Stephen Glazier and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies On Electrode Materials For Lithium-Ion Batteries by :
Download or read book Studies On Electrode Materials For Lithium-Ion Batteries written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early 1970s, research carried out on rechargeable lithium batteries at the Exxon Laboratories in the US established that lithium ions can be intercalated electrochemically into certain layered transition-metal sulphides, the most promising being titanium disulphide. Stemming from this discovery for titanium disulphide, there has been increased interest on lithium-ion intercalation compounds for application in rechargeable batteries. The first rechargeable lithium cell was commercialized in late 1980s by Moli Energy Corporation in Canada. The cell comprised a spirally wound lithium foil as the anode, a separator and MoS2 as the cathode. The cell had a nominal voltage of 1.8 V and an attractive value of specific energy, which was 2 to 3 times greater than either lead-acid or nickel-cadmium cells. However, the battery was withdrawn from the market after safety problems were experienced. This paved way for the discovery of lithium-ion battery. The origin of lithium-ion battery lies in the discovery that Li+-ions can be reversibly intercalated within or deintercalated from the van der Walls gap between graphene sheets of carbon materials at a potential close to the Li/Li+ electrode. Thus, lithium metal is replaced by carbon as the anode material for rechargeable lithium-ion batteries, and the problems associated with metallic lithium mitigated. Complimentary investigations on intercalation compounds based on transition metals resulted in establishing LiCoO2 and LiNiO2 as promising cathode materials. By employing aforesaid intercalation materials, namely carbon and LiCoO2 respectively, as negative and positive electrodes in a non-aqueous lithium-salt electrolyte, a Li-ion cell with a voltage value of about 3.5 V resulted. These findings led to a novel rechargeable battery technology. Lithium-ion batteries were first introduced commercially in 1991 by the Sony Corporation in Japan. Other Japanese manufacturers soon entered the market, followed closely by American an.
Book Synopsis Electrochemical and Thermodynamic Studies of the Electrode Materials for Lithium Ion Batteries by : Hyun Joo Bang
Download or read book Electrochemical and Thermodynamic Studies of the Electrode Materials for Lithium Ion Batteries written by Hyun Joo Bang and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Surface Modification of the Co-free LiNi0.5Mn1.5O4-δ Positive Electrode Material for High-voltage Lithium-ion Batteries by : Fulya Ulu Okudur
Download or read book Surface Modification of the Co-free LiNi0.5Mn1.5O4-δ Positive Electrode Material for High-voltage Lithium-ion Batteries written by Fulya Ulu Okudur and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Transition-metal Ions in the Nickel-rich Layered Positive Electrode Materials for Lithium-ion Batteries by : Shuang Gao
Download or read book Investigation of Transition-metal Ions in the Nickel-rich Layered Positive Electrode Materials for Lithium-ion Batteries written by Shuang Gao and published by . This book was released on 2019 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies of High Voltage LiNi0.5Mn1.5O4 as Positive Electrode Material in Lithium Ion Cells by : Giulio Gabrielli
Download or read book Studies of High Voltage LiNi0.5Mn1.5O4 as Positive Electrode Material in Lithium Ion Cells written by Giulio Gabrielli and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of the Positive Electrode of a Lithium Ion Battery for Possible Use in a Microbattery by : Thomas Cornell Jarman
Download or read book Investigation of the Positive Electrode of a Lithium Ion Battery for Possible Use in a Microbattery written by Thomas Cornell Jarman and published by . This book was released on 2000 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantitative Microstructure Characterization of a NMC Electrode by :
Download or read book Quantitative Microstructure Characterization of a NMC Electrode written by and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Performance of lithium-ion batteries (LIBs) is strongly influenced by the porous microstructure of their electrodes. In this work, 3D microstructures of calendared and un-calendared positive electrode LiNi1/3Mn1/3Co1/3O2 (NMC) have been investigated in order to extract relevant properties useful for battery modeling. Transport (volume fraction, connectivity, particle size and tortuosity) and electrochemical (specific surface area) properties have been calculated for the pore and the active material. Special attention has been paid to determine the size of the so-called representative volume element (RVE) required to be statistically representative of the heterogeneous medium. Several parameters have been calculated using a panel of different numerical methods in order to compare their results. Besides, the image level of detail has been evaluated (using original criteria based upon edge detection) to assess the overall data quality available for the study.
Book Synopsis Combined NMR and PDF Studies of Positive Electrode Materials for Rechargeable Li-ion Batteries by : Julien Bréger
Download or read book Combined NMR and PDF Studies of Positive Electrode Materials for Rechargeable Li-ion Batteries written by Julien Bréger and published by . This book was released on 2006 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Synthesis, Characterization, and Electrochemical Investigation of Novel Electrode Materials for Lithium Ion Batteries [microform] PDF Online Free](https://books.google.com/books/content/images/frontcover/RWCvwgEACAAJ?fife=w200-h370)
