Showing papers in "Journal of Power Sources in 1996"

TL;DR: In this article, a thermal model for a Ballard Mark V 35-cell 5 kW PEM fuel cell stack was developed by performing mass and energy balances on the stack, which was coupled with a previously developed electrochemical model linking the power produced by the stack and the stack temperature to the amount and method of heat removal from the surface of the stack.

TL;DR: In this paper, a three-dimensional mathematical model of a solid oxide fuel cell is presented, which allows the computation of the local distributions of the electrical potential, temperature and concentration of the chemical species.

TL;DR: In this article, the principal methods of converting natural gas into hydrogen, namely catalytic steam reforming, autothermic reforming, pyrolysis and partial oxidation, are reviewed.

TL;DR: The worldwide market for capacitors was approximately US$ 12.3 billion in 1993, of which production within Japan accounted for approximately 50% and the combined domestic and overseas production of Japanese manufacturers accounted for about 70% as discussed by the authors.

TL;DR: In this article, LiP oxynitride was used to satisfy power requirements within a relatively broad range for rechargeable lithium batteries, which employed characteristics of thin-film batteries and employed a lithium intercalation compound as its cathode material.

TL;DR: In this article, the performance of a composite cathode with La(Sr)mnO3 and yttria stabilised zirconia (YSZ) was studied by means of impedance spectrsocopy and d.c. electrochemical methods.

TL;DR: In this article, an expert panel was assembled at the Sixth Asian Battery Conference to answer questions from delegates on various technical and operational aspects of valve-regulated lead/acid batteries, and the interaction between the audience and the panel was both vigorous and informative.

TL;DR: In this article, high energy density capacitors were built with a newly discovered electrode material (amorphous RuO 2 · x H 2 O), which achieved energy densities as high as 96 J/g (26 Wh/kg).

TL;DR: In this paper, the electrochemical reactivities and structural properties of several nickel hydroxide powders were analyzed by X-ray diffraction, Raman spectroscopy and extended Xray absorption fine structure (EXAFS).

TL;DR: In this paper, Tafel slopes and impedance measurements were used to examine the corrosion aspects of magnesium and its alloys AZ 31 (MgAl-Zn), AZ61 (mg-a-al-zn), and AP 65 (pb) in aqueous magnesium perchlorate solution and the results showed that the electrode/ electrolyte interfacial mechanism is activation-controlled.

TL;DR: In this paper, a mathematical simulation of fuel cells and a few examples of fundamental research on catalysts are shown and it is concluded from these fundamental investigations, that poisoning of electrocatalysts in alkaline fuel cells with rolled electrodes due to carbon dioxide does not take place.

TL;DR: In this article, the material, construction and performance of coin-type capacitors for memory protection and power capacitors, for large power sources are described, and the performance of the capacitor depends not only on the material used but also on the construction of the cells.

TL;DR: In this article, the electrochemical properties of FePc and tetracarboxylic iron phthalocyanine (FePcTc) have been measured by rotating disk electrode and in polymer electrolyte fuel cells.

TL;DR: In this paper, an active carbon fiber (ACF) electrode with deaeration was used to increase the inner resistance of the capacitance of the capacitor and showed an enhancement of capacitance with decreasing inner resistance.

TL;DR: In this article, the negative plate degradation is suppressed by increasing the amount of carbon, one of the negative-plate additives, which improves the cycle-life performance of the battery.

TL;DR: In this article, a folding continuous, flexible lithium ion containing polymer laminate electrolyte sandwiched between first and second polarity lithium containing discrete electrode plates is described, and the assembled polymer laminates are folded and stacked, connected to current collectors and packed into a battery case.

TL;DR: In this article, a passivating layer on the carbon surface has been analyzed by means of transmission electron microscopy (electron diffraction, electron energy loss spectroscopy, and imaging) and Fourier transform infrared spectrograms (FTIR) and has shown that this layer is composed of lithium carbonate Li2CO3 and alkyl carbonates of lithium ROCO2Li.

TL;DR: In this paper, the influence of the PTFE coating and the following sintering time on through paper plane conductivity, gas permeability and paper hydrophobicity is analyzed and discussed.

TL;DR: In this paper, the effects of the reduction of nickel oxide in the anode to metallic nickel and the volume change associated with this may damage the supported electrolyte have been investigated and it was shown that the initial reduction does not seem to damage the cell, although an increase in volume with respect to the initial volume upon reoxidation of anode cracks the electrolyte and will fracture the cell when constrained in an operational environment.

TL;DR: In this paper, the authors proposed a novel electroactive energy storing polyacetylene-co-polysulfur (PAS) materials of general formula: (C2Sx)n wherein x is greater than 1 to about 100, and n is equal to or greater than 2.

TL;DR: In this paper, the first order for a test fleet of these buses was also reported and progress in the development of fuel cell stacks for stationary and motive applications was described, with a high power density stack producing over 1000 W/1.

TL;DR: In this paper, single cells with doped lanthanum gallate electrolyte material were constructed and tested from 600 to 800°C, and the results clearly indicate that anode overpotential is the dominant factor in the power loss of the cells.

TL;DR: In this article, a triangular voltage-sweep cyclic voltammetry was carried out for several activated carbons used as polarizable electrodes of electric double-layer capacitors in an aqueous electrolytic solution.

TL;DR: In this paper, the Selemion AMV and Type 2 anion-exchange membranes were modified to improve their water transport properties in the vanadium redox cell, and a significant reduction in the amount of water transport across the membranes was achieved.

TL;DR: In this article, the authors proposed a novel electroactive energy storing polycarbon sulfide (PCS) materials of general formula: (CSx)n wherein x is greater than 2.3 to about 50, and n is equal to or equal to 2.

TL;DR: In this article, the use of the water/ethanol mixture has been investigated as an alternative fuel for molten carbonate fuel cells, and the thermodynamic efficiencies determined for this system have been correlated with the main operative parameters that give some interesting findings indicating encouraging aspects on the utilization of these systems to the production of electricity and heat.

TL;DR: In this paper, the authors present a method and apparatus of charging a battery of an electric vehicle through inductive coupling between a primary inductive device having a core and a primary coil connected to a power source and a secondary inductive devices having a primary and a SINR connected to the battery.

TL;DR: In this article, the electrochemical behavior of activated carbon/carbon (AC/C) composite electrodes was investigated for high-power electric doublelayer capacitors (EDLCs) and it was found that high-rate charge/discharge characteristics are affected by the resistance of the electrolyte phase in the pores of the electrode.

TL;DR: In this paper, the reliability of multilayer ceramic capacitors with Ni internal electrodes has been studied from the viewpoint of partial oxygen pressure (PO2) during firing, and it is shown that the load-life time of the insulation resistance (1R) was prolonged by firing under low Po2 annealing after firing and the addition of dopants.

TL;DR: In this paper, a battery heating device for an electric vehicle is described, which includes a combustion heater for heating an interior of the electric vehicle, batteries which are a driving source of the vehicle, the batteries being disposed about the combustion heater; and a transfer device for transferring exhaust heat from the combustion heating system to the batteries.