Showing papers in "Journal of Power Sources in 2007"

TL;DR: In this paper, a review of methodologies adopted for reducing the capacity fade observed in silicon-based anodes, discuss the challenges that remain in using silicon and siliconbased anode, and propose possible approaches for overcoming them.

TL;DR: In this paper, the separators used in liquid electrolyte Li-ion batteries are classified into three groups: microporous polymer membranes, non-woven fabric mats and inorganic composite membranes.

TL;DR: In this article, the state-of-the-art understanding of durability issues of Pt-based catalysts for proton exchange membrane fuel cell (PEMFC) and the approaches for improving and studying catalyst durability are reviewed.

TL;DR: In this article, the economic potential of two utility-owned fleets of battery-electric vehicles to provide power for a specific electricity market, regulation, in four US regional regulation services markets was evaluated.

TL;DR: In this paper, an overview of catalysts tested as anode and cathode materials for DEFCs, with particular attention on the relationship between the chemical and physical characteristics of the catalysts (catalyst composition, degree of alloying, and presence of oxides) and their activity for the ethanol oxidation reaction.

TL;DR: In this paper, the authors reviewed over 150 articles on the subject of the effect of contamination on PEM fuel cell and found that even trace amounts of impurities present in either fuel or air streams or fuel cell system components could severely poison the anode, membrane, and cathode, particularly at low-temperature operation.

TL;DR: In this paper, a review describes the polymer electrolyte membranes (PEM) that are both under development and commercialized for direct methanol fuel cells (DMFC) and outlines the prospects of the currently known membranes for DMFC.

TL;DR: In this article, the authors reviewed the recent advances in the stability improvement of the Pt/C cathodic catalysts in PEMFC, especially focusing on the durability enhancement through the improved Pt-C interaction.

TL;DR: A comprehensive review of the research work conducted on metal bipolar plates to prevent corrosion while maintaining a low contact resistance is presented in this paper, where metal bipolar plate is used as the current conductors between cells, providing conduits for reactant gases flow, and constitute the backbone of a power stack.

TL;DR: In this paper, the surface chemistry of the following cathode materials: LiCoO 2, V 2 O 5, LiMn 2 O 4, Li Mn 0.5 O 4 and Li MmN 0.

TL;DR: In this article, a coin cell assembled with microporous activated carbon and N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR14TFSI) ionic liquid as the electrolyte was cycled for 40,000 cycles without any change of cell resistance.

TL;DR: In this article, the authors explore the influence of the catalysts on the performance of a nonaqueous O 2 electrode on a Li/O 2 cell and find that Co 3 O 4 gives the best compromise between initial capacity (2000 mAhg −1 ) and capacity retention (6.5% per cycle), as well as the lowest charging voltage 4 V.

TL;DR: In this paper, the Coulombic efficiency and power density of single-chamber PEM-less MFCs were adapted by applying a J-Cloth layer on the water-facing side of air cathode.

TL;DR: In this paper, the thermal abuse behavior of large format Li-ion batteries for automotive applications was investigated using one-dimensional modeling approach formulated by Hatchard et al. and extended to three dimensions so they could consider the geometrical features, which are critical in large cells for automotive application.

TL;DR: In this paper, a carbon nanotube (CNT)/polyaniline (PANI) composite is evaluated as an anode material for high-power microbial fuel cells (MFCs).

TL;DR: In this article, a review of the recent developments of anode in SOFCs with principal emphasis on the material aspects is presented, and the mechanism and kinetics of fuel oxidation reactions are also addressed.

TL;DR: In this paper, the authors characterize the associated vehicle attributes and, in particular, the various levels of hybrid, and derive new requirements for the electrical storage system, including: shallow-cycle life, high dynamic charge acceptance particularly for regenerative braking and robust service life in sustained partial-state-of-charge usage.

TL;DR: Proton exchange membrane fuel cell (PEMFC) is considered as one promising clean and highly efficient power generation technology in 21st century as mentioned in this paper, which is considered to be a promising energy generation technology.

TL;DR: In this article, the authors investigated the hydrogen generation reaction in the presence of Pt supported on γ-Al 2 O 3, VULCAN ® carbon and SiO 2, and it was found that Pt on the smallest particle size is the most active.

TL;DR: In this paper, an activated carbon-MnO2 hybrid electrochemical supercapacitor was constructed and characterized in K2SO4 aqueous media, and a laboratory cell achieved 195,000 cycles with stable performance.

TL;DR: A review of recent advances related to the physico-chemical and electronic interactions at the catalyst-support interface and the catalyst activity enhancement through improved Pt-C interaction is provided in this article.

TL;DR: Nafion/SiO2 hybrid membrane was used as separator for vanadium redox flow battery (VRB) to evaluate the vanadium ions permeability and cell performance.

TL;DR: In this article, the effect of carbon black support corrosion on the stability of Pt/C catalyst was investigated by cyclic voltammograms and X-ray photoelectron spectroscopy (XPS).

TL;DR: In this paper, the effect of heat treatment on the catalytic activity and stability of proton exchange membrane (PEM) fuel cell catalysts is discussed. But, the authors do not consider the effects of temperature and time on the individual catalysts.

TL;DR: In this article, a simple electrical model has been established to describe supercapacitor behavior as a function of frequency, voltage and temperature for hybrid vehicle applications, which was derived from experimental data using electrochemical impedance spectroscopy (EIS).

TL;DR: In this article, the effect of VC as electrolyte additive on the electrochemical performance of Si film anode was studied and it was found that the SEI layer formed in VC-containing electrolyte possessed better properties.

TL;DR: In this article, the design and fabrication of mixed oxide-ion/electron conductor (MIEC) anodes are evaluated and several constraints on these MIECs are outlined, and preliminary results of this on-going investigation are reviewed.

TL;DR: The causes of charge reversal and the impact of prolonged reversal on power generation using a two air-cathode MFCs stack were investigated and the reason for the voltage reversal was shown to be fuel starvation, resulting in a loss of bacterial activity.

TL;DR: In this paper, the effect of the addition of CeO 2 and NiO to the Pt/C and Pd/C electrocatalysts on ethanol oxidation is also studied in alkaline media.

TL;DR: In this paper, the durability and degradation behavior of Nafion NR111 proton exchange membranes (PEMs) are investigated in detail under various mechanical, chemical and polarization conditions.