Showing papers in "Journal of Power Sources in 2009"

TL;DR: In this article, room temperature ionic liquids (RTILs) are used as electrolytes for lithium and lithium-ion batteries. But the authors focus on the formation of the solid electrolyte interface on the anode surface.

TL;DR: In this paper, structural characteristics and Li-electrochemical reactivity, along with synthetic approaches, of nanostructures and nano-composites based on lithium titanites are reviewed.

TL;DR: In this article, the surface chemistry of the solid electrolyte interphase (SEI) formed on silicon due to the reduction of the electrolyte was investigated and the results were used to determine the optimal cycling parameters for good cycling.

TL;DR: In this paper, a review of the most recent research on degradation and durability issues in the catalyst layers including: (1) platinum catalysts, (2) carbon supports, and (3) Nafion ionomer and interfacial degradation.

TL;DR: A review of the development of microfluidic fuel cells can be found in this paper, with an emphasis on theory, fabrication, unit cell development, performance achievements, design considerations, and scale-up options.

TL;DR: The theoretical mass specific capacitance (C s ) of polyaniline (PANI) is firstly estimated by combining electrical double-layer capacitance and pseudocapacitance as discussed by the authors.

TL;DR: In this paper, the authors proposed a perfect energy source supplied by a polymer electrolyte membrane fuel cell (PEMFC) as a main power source and storage devices: battery and supercapacitor, for modern distributed generation system, particularly for future fuel cell vehicle applications.

TL;DR: In this article, the capacity fading of an 18650 LiFePO4-based lithium ion cell was studied using the dynamic stress test (DST) schedule in a cycle life evaluation.

TL;DR: In this article, a review of the recent progress in the development of the hydrogen generation from sodium borohydride hydrolysis is reviewed and the critical issues of this hydrogen generation technology have been highlighted and discussed.

TL;DR: In this paper, the authors combined modeling and experiments to quantify tortuosity in electrolyte-filled porous battery structures (separator and active-material film) by measuring the AC impedance and polarization-interrupt.

TL;DR: In this article, the electronic structure of nitrogen introduced into various carbon-based cathode catalysts for the polymer electrolyte fuel cell (PEFC) was investigated using X-ray absorption spectroscopy (XAS).

TL;DR: In this article, the authors developed analytic expressions for the evolution of stress and strain energy within a spherically shaped electrode element under either galvanostatic (constant current) or potentiostatic operation when irreversible phenomena are dominated by solute diffusion resistance within host particles.

TL;DR: In this paper, a passive thermal management system utilizing phase change material (PCM) provides faster heat dissipation than active cooling during high pulse power discharges while preserving sufficiently uniform cell temperature to ensure the desirable cycle life.

TL;DR: In this paper, pyridinic and graphitic (quaternary) nitrogens may act as active sites of catalysts for oxygen reduction reaction, which facilitates the reductive oxygen adsorption.

TL;DR: A bibliometric analysis of the publications on the GDLs since 1992 shows a total of 400+ publications (>140 papers in the Journal of Power Sources alone) and reveals an exponential growth due to reasons that PEMFC promises a lot of potential as the future energy source for varied applications as discussed by the authors.

TL;DR: In this article, the authors showed that long-term CO 2 electrolysis is possible in SOECs with nickel electrodes and that the passivation rate was independent of the current density and irreversible when operated at conditions that would oxidise carbon.

TL;DR: Palladium and platinum-ruthenium nanoparticles supported on multi-walled carbon nanotubes (MWCNT) are prepared by the impregnation-reduction procedure as discussed by the authors.

TL;DR: In this article, a review of the current research activities on BSCF-based cathodes for intermediate-temperature (IT)-SOFCs is presented and analyzed to provide some guidelines in the search for the new generation of cathode materials for IT-SOFC.

TL;DR: In this paper, the effects of carbon-support degradation in proton exchange membrane fuel cells are reviewed, focusing on those caused by fuel and oxidant starvation, and an illustrative fault tree is built, pointing out the relationship between causes and symptoms in catalyst degradation.

TL;DR: In this article, the current status of development of micro-fabricated micro-solid oxide fuel cell membranes for power delivery is discussed and compared along with their microstructures.

TL;DR: In this paper, a novel sulfur-coated multi-walled carbon nanotubes composite material (Scoated-MWCNTs) was prepared through capillarity between the sulfur and multi-wall carbon nanotsubes.

TL;DR: In this article, a new class of electrochemical capacitors by utilizing vertically aligned carbon nanotubes as the electrodes and environmentally friendly ionic liquids (ILs) as the electrolytes was reported.

TL;DR: In this article, the electrochemical reactions of sulfur cathode during discharge-charge process were investigated by EIS technique combining with XRD, SEM and EDS methods, and it was found that the EIS can distinguish the individual contributions of charge transfer resistances, ion diffusion impedance and properties originating from Li 2 S film in the frequency domain of 100 kHz to 100 mHz.

TL;DR: In this article, an asymmetric supercapacitor based on activated carbon (AC) and NaMnO 2 as electrodes and aqueous Na 2 SO 4 solution as electrolyte was assembled.

TL;DR: In this paper, Boron and nitrogen co-doped porous carbons (BNCs) were prepared through a facile procedure using citric acid, boric acid and nitrogen as precursors, respectively.

TL;DR: In this article, an experimental thermoelectric generator unit incorporating commercially available Tefas with the parallel-plate heat exchanger has been constructed to examine the influences of the main operating conditions, the hot and cold fluid inlet temperatures, flow rates and the load resistance, on the power output and conversion efficiency.

TL;DR: A review of the synthesis procedures used for the production of LiFePO 4 powders along with the highlights of doped and coated derivatives is presented in this paper, where several alternative procedures are mentioned.

TL;DR: A site cation-ordered PrBaCo2O5+δ (PrBC) double perovskite oxide was synthesized and evaluated as the cathode of an intermediate-temperature solid-oxide fuel cell (IT-SOFC) on a samarium-doped ceria (SDC) electrolyte as mentioned in this paper.

TL;DR: In this article, an optimization study of vanadium V(V) supersaturated solutions in terms of concentrations, temperature, and precipitation behavior are reported along with properties such as density and viscosity.