Journal of Electrochemical Energy Conversion and Storage: Recent submissions
Now showing items 441-460 of 533
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Microstructural Analysis of the Effects of Thermal Runaway on Li-Ion and Na-Ion Battery Electrodes
(The American Society of Mechanical Engineers (ASME), 2018)Thermal runaway is a phenomenon that occurs due to self-sustaining reactions within batteries at elevated temperatures resulting in catastrophic failure. Here, the thermal runaway process is studied for a Li-ion and Na-ion ... -
The Effect of Solvent on the Capacity Retention in a Germanium Anode for Lithium Ion Batteries
(The American Society of Mechanical Engineers (ASME), 2018)A thin and mechanically stable solid electrolyte interphase (SEI) is desirable for a stable cyclic performance in a lithium ion battery. For the electrodes that undergo a large volume expansion, such as Si, Ge, and Sn, the ... -
Multicoordination Control Strategy Performance in Hybrid Power Systems
(The American Society of Mechanical Engineers (ASME), 2018)This paper evaluates a state-space methodology of a multi-input multi-output (MIMO) control strategy using a 2 × 2 tightly coupled scenario applied to a physical gas turbine fuel cell hybrid power system. A centralized ... -
Influence of Roasting Temperature on Electrochemical Performance of LiNi0.5Mn1.5O4 Cathode for Lithium-Ion Battery
(The American Society of Mechanical Engineers (ASME), 2018)Nanomicro spheres of LiNi0.5Mn1.5O4 materials are prepared by carbonate coprecipitation method. The effect of calcination temperatures on morphology and electrochemical property is explored. Results show that the structure ... -
A Three-Dimensional Agglomerate Model of an Anion Exchange Membrane Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2018)In this study, a three-dimensional (3D) agglomerate model of an anion exchange membrane (AEM) fuel cell is proposed in order to analyze the influence of the composition of the catalyst layers (CLs) on overall fuel cell ... -
Application of Adaptive Neuro-Fuzzy Inference System Techniques to Predict Water Activity in Proton Exchange Membrane Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2018)This work defines and implements a technique to predict water activity in proton exchange membrane fuel cell. This technique is based on the electrochemical impedance spectroscopy (EIS) as sensor and adaptive neuro-fuzzy ... -
Taking Advantage of the Vastly Underused European Biogas Potential: Break-Even Conditions for a Fuel Cell and an Engine as Biogas Converters
(The American Society of Mechanical Engineers (ASME), 2018)In this study, the European biogas market and its potential are analyzed. The four countries with the biggest biogas production and potential, namely Germany, Italy, France, and the UK, are studied in detail. Particular ... -
Innovating Safe Lithium-Ion Batteries Through Basic to Applied Research
(The American Society of Mechanical Engineers (ASME), 2018)This paper for inclusion in the special issue provides a brief synopsis of lithium-ion battery safety research efforts at the Naval Research Laboratory (NRL) and presents the viewpoint that lithium-ion battery safety is a ... -
Neutron Imaging and Electrochemical Characterization of a Glucose Oxidase-Based Enzymatic Electrochemical Cell
(The American Society of Mechanical Engineers (ASME), 2018)Enzymatic electrochemical cells (EECs) are a candidate for providing “green” solutions to a plethora of low-power, long-lifetime applications. A prototype three-electrode biobattery configuration of an EEC has been designed ... -
Mesoscale Physicochemical Interactions in Lithium–Sulfur Batteries: Progress and Perspective
(The American Society of Mechanical Engineers (ASME), 2018)The shuttle effect and poor conductivity of the discharge products are among the primary impediments and scientific challenges for lithium–sulfur batteries. The lithium–sulfur battery is a complex energy storage system, ... -
Characteristic Time Constants Derived From the Low-Frequency Arc of Impedance Spectra of Fuel Cell Stacks
(The American Society of Mechanical Engineers (ASME), 2018)Electrochemical impedance spectroscopy is used during operation of different polymer electrolyte membrane fuel cell (PEMFC) stack assemblies at various conditions with special interest given to the characteristic time ... -
Multiscale Tomography-Based Analysis of Polymer Electrolyte Fuel Cells: Towards a Fully Resolved Gas Diffusion Electrode Reconstruction
(The American Society of Mechanical Engineers (ASME), 2018)The microstructure of a fuel cell electrode largely determines the performance of the whole fuel cell system. In this regard, tomographic imaging is a valuable tool for the understanding and control of the electrode ... -
Apply Robust Proportional Integral Derivative Controller to a Fuel Cell Gas Turbine
(The American Society of Mechanical Engineers (ASME), 2018) -
Equivalent Stiffness Model of a Proton Exchange Membrane Fuel Cell Stack Including Hygrothermal Effects and Dimensional Tolerances
(The American Society of Mechanical Engineers (ASME), 2018)Proton exchange membrane fuel cells (PEMFCs) require mechanical compression to ensure structural integrity, prevent leakage, and to minimize the electrical contact resistance. The mechanical properties and dimensions of ... -
Blue Refrigeration: Capacitive De-ionization for Brackish Water Treatment
(The American Society of Mechanical Engineers (ASME), 2018)There is a growing interest in minimizing the energy and cost associated with desalination. To do this, various new desalination systems and approaches are being explored. One growing area of interest revolves around ... -
Ion Storage in Nanoconfined Interstices Between Vertically Aligned Nanotubes in Electric Double-Layer Capacitors
(The American Society of Mechanical Engineers (ASME), 2018)Ionic liquids are considered promising electrolytes for developing electric double-layer capacitors (EDLCs) with high energy density. To identify optimal operating conditions, we performed molecular dynamics simulations ... -
Modeling the Effects of Using Gas Diffusion Layers With Patterned Wettability for Advanced Water Management in Proton Exchange Membrane Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2018)We present a macrohomogeneous two-phase model of a proton exchange membrane fuel cell (PEMFC). The model takes into account the mechanical compression of the gas diffusion layer (GDL), the two-phase flow of water, the ... -
Plant-Wide Control of an Integrated Molten Carbonate Fuel Cell Plant
(The American Society of Mechanical Engineers (ASME), 2018)This paper presents the design and part-load operation of a molten carbonate-micro gas turbine (MCFC/MGT) hybrid system (HS), and proposes a multiloop control strategy for the HS. A mathematical model of the system is ... -
Coupled Numerical Approach for Automotive Battery Pack Lifetime Estimates With Thermal Management
(The American Society of Mechanical Engineers (ASME), 2018)This study combined a simple two-dimensional (2D) finite volume model (Kim model), which employs Ohm's law along with charge conservation over the electrodes and Butler–Volmer charge transfer kinetics for prismatic battery ... -
An Electrochemical Performance Characterization Method for Comparing PEFCs of Varying Channel Dimensions
(The American Society of Mechanical Engineers (ASME), 2018)A method which allows for the comparison of polymer electrolyte fuel cell (PEFC) bipolar plates (BPs) with various channel dimensions is outlined here. It is applied to data from an experiment with different channel and ...