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Gholam-Abbas Nazri

Bio: Gholam-Abbas Nazri is an academic researcher from Wayne State University. The author has contributed to research in topics: Lithium & Hydrogen storage. The author has an hindex of 34, co-authored 101 publications receiving 4212 citations. Previous affiliations of Gholam-Abbas Nazri include General Motors & University of Windsor.


Papers
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Book
01 Jan 2003
TL;DR: In this paper, the role of electronic properties in the electrochemical behavior of intercalation compounds from a first principles Vantage Point is discussed, and the Role of Nanoparticles in Reactivity of 3D metal Oxides Toward Lithium.
Abstract: Fundamentals.- Materials Aspects: An Overview.- The Role of Electronic Properties in the Electrochemical Behavior of Intercalation Compounds From a First Principles Vantage Point.- Synthesis of Battery Materials.- Anode Materials.- Anodes and Composite Anodes: An Overview.- Carbonaceous and Graphitic Anodes.- Graphite-Electrolyte Interface in Lithium-Ion Batteries.- The Key Role of Nanoparticles in Reactivity of 3D Metal Oxides Toward Lithium.- Nitride and Silicide Negative Electrodes.- Alloys and Intermetallic Anodes.- Current Issues of Metallic Lithium Anode.- Cathode Meterials.- Trends in Cathode Materials for Rechargeable Batteries.- Spinel Cathode Materials for Lithium-Ion Batteries.- Layered Manganese Oxides as Cathodes.- Cathodes Based on Lico02 and Lini02.- Polyanion-Based Positive Electrode Materials.- Understanding Phase Transformations in Lithium Battery Materials by Transmission Electron Microscopy.- Electrolytes.- Liquid Electrolytes: Some Theoretical and Practical Aspects.- Advanced Liquid Electrolyte Solutions.- Polymeric Electrolytes: An Overview.- Glass and Ceramic Electrolytes for Lithium and Lithium-Ion Batteries.- Battery Systems and Applications.- Lithium-Ion Batteries for Ev, Hev and other Industrial Applications.- Lithium Batteries for Medical Applications.- Current Issues and Market Trends of Li-Ion Batteries for Consumer Applications.

701 citations

Journal ArticleDOI
TL;DR: The electrochemical reactivity of MgH(2) with Li is presented, which constitutes the first use of a metal-hydride electrode for Li-ion batteries, and produces nanosized Mg and Mgh(2), which show enhanced hydrogen sorption/desorption kinetics.
Abstract: Classical electrodes for Li-ion technology operate via an insertion/de-insertion process. Recently, conversion electrodes have shown the capability of greater capacity, but have so far suffered from a marked hysteresis in voltage between charge and discharge, leading to poor energy efficiency and voltages. Here, we present the electrochemical reactivity of MgH2 with Li that constitutes the first use of a metal-hydride electrode for Li-ion batteries. The MgH2 electrode shows a large, reversible capacity of 1,480 mAh g−1 at an average voltage of 0.5 V versus Li+/Li∘ which is suitable for the negative electrode. In addition, it shows the lowest polarization for conversion electrodes. The electrochemical reaction results in formation of a composite containing Mg embedded in a LiH matrix, which on charging converts back to MgH2. Furthermore, the reaction is not specific to MgH2, as other metal or intermetallic hydrides show similar reactivity towards Li. Equally promising, the reaction produces nanosized Mg and MgH2, which show enhanced hydrogen sorption/desorption kinetics. We hope that such findings can pave the way for designing nanoscale active metal elements with applications in hydrogen storage and lithium-ion batteries. Conversion electrodes for lithium-ion batteries are capable of high capacity but low energy efficiency and low voltages are problematic. The electrochemical reactivity of MgH2 with Li shows promise in using metal-hydride electrodes for both lithium-ion-battery and hydrogen storage applications.

339 citations

Book
31 May 1994
TL;DR: In this article, the design and optimization of Solid-State Batteries is discussed. But the authors focus on the application of solid-state Ionic materials in the field of energy storage.
Abstract: Preface. 1. Design and Optimization of Solid-State Batteries. 2. Materials for Electrolyte: Crystalline Compounds. 3. Materials for Electrolyte: Fast-Ion-Conducting Glasses. 4. Materials for Electrolyte: Thin Films. 5. Polymer Electrolytes. 6. Materials for Electrodes: Crystalline Compounds. 7. Materials for Electrodes: Amorphous and Thin-Films. 8. Applications of Solid-State Ionic Materials. Subject Index.

262 citations

Journal ArticleDOI
TL;DR: Raman and infrared spectroscopic studies and conductivity and viscosity measurements of propylene carbonate (PC) doped with various concentrations of lithium perchlorate are reported in this paper.
Abstract: Raman and infrared spectroscopic studies and conductivity and viscosity measurements of propylene carbonate (PC) doped with various concentrations of lithium perchlorate are reported. The assignment of the vibrational modes was supplemented by AM1 normal coordinate analysis. Both Raman and infrared spectra showed band splitting in the fundamental vibrational frequencies of PC and perchlorate anion. Spectral curve fitting within the totally symmetric perchlorate band shape showed contributions of free ion, solvent-shared ion pairs, and contact ion pairs. Strong Li + -PC interaction was observed for the PC ring deformation band at 112 cm -1 . Ion pairing as deduced by spectroscopic techniques provided a rationale to account for conductivity and viscosity data

187 citations

Journal ArticleDOI
TL;DR: In this article, the Raman spectra, conductivity, and viscosity of the EC-based binary solvent electrolytes were measured and the salt concentration was optimized for maximum conductivity.
Abstract: Electrolyte solutions formed by the addition of lithium perchlorate to a binary solvent mixture obtained by mixing ethylene carbonate (EC) with propylene carbonate (PC), diethyl carbonate (DEC), or dimethyl carbonate (DMC) were studied. The Raman spectra, conductivity, and viscosity of the EC based binary solvent electrolytes were measured. The salt concentration was optimized for maximum conductivity. Conductivity increases with increasing lithium perchlorate concentration in the EC/PC/LiClO4 electrolyte until a maximum of 6.1 kΩ-1 cm-1 is reached at 0.82 M LiClO4 (EC/PC/LiClO4 = 8/8/1). For the optimized salt concentration, the conductivity and viscosity dependence on the percent EC content of each electrolyte was measured at 25 °C. The maximum conductivity is observed for the EC/DMC/LiClO4 electrolyte at about 60% EC. The temperature dependence of conductivity and viscosity in the −30 ° to 60 °C range was also examined. The spectroscopic evidence for specific Li+ coordination is supported by quantum ch...

177 citations


Cited by
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Journal ArticleDOI
TL;DR: This review describes some recent developments in the discovery of nanoelectrolytes and nanoeLECTrodes for lithium batteries, fuel cells and supercapacitors and the advantages and disadvantages of the nanoscale in materials design for such devices.
Abstract: New materials hold the key to fundamental advances in energy conversion and storage, both of which are vital in order to meet the challenge of global warming and the finite nature of fossil fuels. Nanomaterials in particular offer unique properties or combinations of properties as electrodes and electrolytes in a range of energy devices. This review describes some recent developments in the discovery of nanoelectrolytes and nanoelectrodes for lithium batteries, fuel cells and supercapacitors. The advantages and disadvantages of the nanoscale in materials design for such devices are highlighted.

8,157 citations

Journal ArticleDOI
TL;DR: The energy that can be stored in Li-air and Li-S cells is compared with Li-ion; the operation of the cells is discussed, as are the significant hurdles that will have to be overcome if such batteries are to succeed.
Abstract: Li-ion batteries have transformed portable electronics and will play a key role in the electrification of transport. However, the highest energy storage possible for Li-ion batteries is insufficient for the long-term needs of society, for example, extended-range electric vehicles. To go beyond the horizon of Li-ion batteries is a formidable challenge; there are few options. Here we consider two: Li-air (O(2)) and Li-S. The energy that can be stored in Li-air (based on aqueous or non-aqueous electrolytes) and Li-S cells is compared with Li-ion; the operation of the cells is discussed, as are the significant hurdles that will have to be overcome if such batteries are to succeed. Fundamental scientific advances in understanding the reactions occurring in the cells as well as new materials are key to overcoming these obstacles. The potential benefits of Li-air and Li-S justify the continued research effort that will be needed.

7,895 citations

Journal ArticleDOI
TL;DR: The theoretical charge capacity for silicon nanowire battery electrodes is achieved and maintained a discharge capacity close to 75% of this maximum, with little fading during cycling.
Abstract: There is great interest in developing rechargeable lithium batteries with higher energy capacity and longer cycle life for applications in portable electronic devices, electric vehicles and implantable medical devices. Silicon is an attractive anode material for lithium batteries because it has a low discharge potential and the highest known theoretical charge capacity (4,200 mAh g(-1); ref. 2). Although this is more than ten times higher than existing graphite anodes and much larger than various nitride and oxide materials, silicon anodes have limited applications because silicon's volume changes by 400% upon insertion and extraction of lithium which results in pulverization and capacity fading. Here, we show that silicon nanowire battery electrodes circumvent these issues as they can accommodate large strain without pulverization, provide good electronic contact and conduction, and display short lithium insertion distances. We achieved the theoretical charge capacity for silicon anodes and maintained a discharge capacity close to 75% of this maximum, with little fading during cycling.

6,104 citations

Journal ArticleDOI
TL;DR: The phytochemical properties of Lithium Hexafluoroarsenate and its Derivatives are as follows: 2.2.1.
Abstract: 2.1. Solvents 4307 2.1.1. Propylene Carbonate (PC) 4308 2.1.2. Ethers 4308 2.1.3. Ethylene Carbonate (EC) 4309 2.1.4. Linear Dialkyl Carbonates 4310 2.2. Lithium Salts 4310 2.2.1. Lithium Perchlorate (LiClO4) 4311 2.2.2. Lithium Hexafluoroarsenate (LiAsF6) 4312 2.2.3. Lithium Tetrafluoroborate (LiBF4) 4312 2.2.4. Lithium Trifluoromethanesulfonate (LiTf) 4312 2.2.5. Lithium Bis(trifluoromethanesulfonyl)imide (LiIm) and Its Derivatives 4313

5,710 citations

Journal ArticleDOI
TL;DR: In this article, a review of the key technological developments and scientific challenges for a broad range of Li-ion battery electrodes is presented, and the potential/capacity plots are used to compare many families of suitable materials.

5,057 citations