A5070643778- Advanced Battery Technologies Research
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Fuel Cells and Related Materials
- Advanced battery technologies research
- Extraction and Separation Processes
- Thermal Expansion and Ionic Conductivity
- Electrocatalysts for Energy Conversion
- Thermal and Kinetic Analysis
- Electric Vehicles and Infrastructure
- Transition Metal Oxide Nanomaterials
- Electric and Hybrid Vehicle Technologies
- Advancements in Solid Oxide Fuel Cells
- Electrochemical Analysis and Applications
- Hybrid Renewable Energy Systems
- Supercapacitor Materials and Fabrication
- Advanced Memory and Neural Computing
- Microgrid Control and Optimization
- Recycling and Waste Management Techniques
- Gas Sensing Nanomaterials and Sensors
- Solid-state spectroscopy and crystallography
- Conducting polymers and applications
- Copper Interconnects and Reliability
- Microwave Dielectric Ceramics Synthesis
- Machine Learning in Materials Science
University of Maryland, College Park
2019-2025
Advanced Research Projects Agency - Energy
2015-2022
Robert Bosch (United States)
2011-2022
Defense Advanced Research Projects Agency
2015-2017
Robert Bosch (Slovenia)
2011-2012
University of California, Berkeley
2007-2012
Palo Alto University
2011
Robert Bosch (Germany)
2011
Robert Bosch (Netherlands)
2010
Berkeley College
2007-2009
ADVERTISEMENT RETURN TO ISSUEPREVEnergy FocusNEXTChallenges for and Pathways toward Li-Metal-Based All-Solid-State BatteriesPaul AlbertusPaul AlbertusDepartment of Chemical Biomolecular Engineering, University Maryland, College Park, Maryland 20742, United StatesMore by Paul Albertushttp://orcid.org/0000-0003-0072-0529, Venkataramani AnandanVenkataramani AnandanFord Motor Company, Dearborn, Michigan 48121, Anandan, Chunmei BanChunmei BanMechanical Engineering Department, Colorado, Boulder,...
The Li/oxygen battery may achieve a high practical specific energy as its theoretical is Li assuming the product. To help understand physics of we present first physics-based model that incorporates major thermodynamic, transport, and kinetic processes. We obtain good match between porous-electrode experiments simulations by using an empirical fit to resistance discharge products (which include carbonates oxides when carbonate solvents) function thickness obtained from flat-electrode...
Abstract The coupling of solid-state electrolytes with a Li-metal anode and state-of-the-art (SOA) cathode materials is promising path to develop inherently safe batteries high energy density (>1000 Wh L −1 ). However, integrating metallic Li solid-electrolytes using scalable processes not only challenging, but also adds extraneous volume since SOA cathodes are fully lithiated. Here we show the potential for “Li-free” battery manufacturing 7 La 3 Zr 2 O 12 (LLZO) electrolyte. We...
Empirical observations have shown that lithium deposition occurs preferentially at electrode edges and extending the negative beyond edge of positive by approximately can prevent from occurring. In this work, we use a simplified COMSOL Multiphysics model to explain behavior investigate conditions under which occurs, paying particular attention magnitude effects. Model results show geometric effects generate overpotential create favor plating, despite unused capacity in center electrode....
We adapt a previously developed lithium-ion mathematical model to treat multiple types of active materials in single electrode; our treats both direct (galvanostatic) and alternating (impedance) currents. compare simulations experimental data from coin cells built with two positive-electrode (compositions based on ) mixed five different molar ratios develop parameter set that qualitatively matches the galvanostatic impedance data. found match behavior high rate discharge curves (which showed...
Abstract For storage of grid‐scale electrical energy, redox‐flow batteries (RFBs) are considered promising technologies. This paper explores the influence electrolyte composition and ion transport on cell performance by using an integrated approach experiments cost modeling. In particular, impact area‐specific resistance system capability is elucidated for hydrogen/bromine RFB. The experimental data demonstrate very good with 1.46 W cm −2 peak power 4 A limiting current density at ambient...
Silica glasses have wide applications in industrial fields due to their extraordinary properties, such as high transparency, low thermal expansion coefficient, and hardness. However, current methods of fabricating silica glass generally require long treatment time (up hours) complex setups, leading cost slow manufacturing speed. Herein, obtain high-quality using a facile rapid method, an ultrafast high-temperature sintering (UHS) technique is reported that requires no additional pressure....
Batteries for use in vehicle applications have complex and coupled electrochemical thermal phenomena, although these classes of phenomena are often treated separately modeling efforts. Because important aspects battery performance, aging, safety sensitive to both temperature states, it is include a single model. We do this by coupling well-established 1D model, Dualfoil, with 3D model cell, solving the resultant energy balance finite-volume package Fluent. Independent sizing meshes enables...
We show that the deposition of solid-state electrolyte LiPON onto films V2O5 leads to their uniform lithiation up 2.2 Li per V2O5, without affecting concentration in and its ionic conductivity. Our results indicate incorporation occurs during deposition, contrast earlier mechanisms proposed explain postdeposition transfer between LiCoO2. use our discovery demonstrate symmetric thin film batteries with a capacity >270 mAh/g, at rate 20C, 1600 cycles only 8.4% loss capacity. also how...
Here we describe a model for lithium titanate spinel paired with an activated carbon electrode: asymmetric hybrid supercapacitor. The is compared to experimental results. performance of this system spinel/lithium iron phosphate battery. used study the these chemistries and assist in cell optimization. A Ragone plot generated various designs order assess ability achieve U.S. Department Energy goals hybrid-electric vehicles. specific energy maximized by optimizing design fixed time discharge....
Mathematical models of batteries which make use the intercalation a species into solid phase need to solve corresponding mass transfer problem. Because solving this equation can significantly add computational cost model, various methods have been devised reduce time. In paper we focus on comparison formulation, accuracy, and order accuracy for two numerical spherical diffusion problem with constant or non-constant coefficient: finite volume method control method. Both provide perfect...
Abstract The present study focuses on the electrochemical-mechanical (ECM) coupling effects of a thin-film, solid-state battery with only stiff, ceramic materials, in contrast to prior investigations that focus individual active material particles or aggregations particles. We model impacts ECM couplings including stress-transport and stress-equilibrium potential full-cell performance mechanical failure modes thin-film conformally deposited nanopore scaffold, which is an experimentally...
Conventional electric field directed colloidal assembly enables fabricating ordered structures but lacks temporal control over state. Chemical reaction networks have been discovered that transiently assemble colloids; however, they slow dynamics (hrs – days) and poor tunability, utilize complex reagents, produce kinetically trapped states. Here we demonstrate transient crystals autonomously form, breakup, reconstitute in response to an electrochemical network driven by a time invariant...