A5071097596- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced battery technologies research
- Magnesium Alloys: Properties and Applications
- Aluminum Alloys Composites Properties
- Hydrogen Storage and Materials
- Microstructure and mechanical properties
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Advanced Battery Technologies Research
- Metal and Thin Film Mechanics
- Electrochemical Analysis and Applications
- Aluminum Alloy Microstructure Properties
- Electrocatalysts for Energy Conversion
- Advanced Photocatalysis Techniques
- MXene and MAX Phase Materials
- Surfactants and Colloidal Systems
- Calcium Carbonate Crystallization and Inhibition
- Material Dynamics and Properties
- Corrosion Behavior and Inhibition
- Thermal Expansion and Ionic Conductivity
- Molten salt chemistry and electrochemical processes
- Chemical and Physical Properties in Aqueous Solutions
- Electronic and Structural Properties of Oxides
- Layered Double Hydroxides Synthesis and Applications
The University of Texas at Austin
2024-2025
Massachusetts Institute of Technology
2021-2024
Shenyang Normal University
2022-2024
Shenyang University
2022-2024
Cornell University
2018-2023
Materials Science & Engineering
2022
Ithaca College
2020
China University of Geosciences (Beijing)
2019
Shanghai Jiao Tong University
2015-2018
United States Department of Energy
2006
Controlling electrode growth Batteries with metal anodes can grow dendrites during cycling, which cause short circuits in a battery or subsequently reduce the charge capacity. Zheng et al. developed process to electrodeposit zinc on graphene-coated stainless-steel electrode, such that forms plates preferential orientation parallel electrode. This is achieved by depositing graphene layer stainless steel designed epitaxially match basal (002) plane of metallic zinc, minimizing lattice strain....
An artificial solid electrolyte interphase on aluminum enables aqueous batteries with high specific energy and good reversibility.
Solid-state batteries enabled by solid-state polymer electrolytes (SPEs) are under active consideration for their promise as cost-effective platforms that simultaneously support high-energy and safe electrochemical energy storage. The limited oxidative stability poor interfacial charge transport in conventional well known, but difficult challenges must be addressed if high-voltage intercalating cathodes to used such batteries. Here, ether-based situ polymerized a ring-opening reaction the...
The propensity of metal anodes contemporary interest (e.g., Li, Al, Na, and Zn) to form non-planar, dendritic morphologies during battery charging is a fundamental barrier achievement full reversibility. We experimentally investigate the origins electrodeposition Zn, Cu, Li in three-electrode electrochemical cell bounded at one end by rotating disc electrode. find that classical picture ion depletion-induced growth dendrites valid dilute electrolytes but essentially irrelevant concentrated...
Understanding cation (H+ , Li+ Na+ Al3+ etc.) intercalation/de-intercalation chemistry in transition metal compounds is crucial for the design of cathode materials aqueous electrochemical cells. Here we report that orthorhombic vanadium oxides (V2 O5 ) supports highly reversible proton reactions media, enabling aluminum cells with extended cycle life. Empirical analyses using vibrational and x-ray spectroscopy are complemented theoretical analysis electrostatic potential to establish how why...
Control of crystallography metal electrodeposit films has recently emerged as a key to achieving long operating lifetimes in next-generation batteries. It is reported that the large crystallographic heterogeneity, e.g., broad orientational distribution, appears characteristic commercial foils, results rough morphology upon plating/stripping. On this basis, an accumulative roll bonding (ARB) methodology-a severe plastic deformation process-is developed. Zn used first example interrogate...
Abstract Lithium metal is a promising anode for energy-dense batteries but hindered by poor reversibility caused continuous chemical and electrochemical degradation. Here we find that increasing the Li plating capacity to high values ( e.g ., 10–50 mAh cm −2 ), deposits undergo morphological transition produce dense structures, composed of large grains with dominantly (110) crystallographic facets. The resultant electrodes manifest fast kinetics lithium stripping/plating processes higher...
Aqueous zinc batteries are attracting interest because of their potential for cost-effective and safe electricity storage. However, metallic exhibits only moderate reversibility in aqueous electrolytes. To circumvent this issue, we study Zn able to form nanometric interphases at the metal/liquid electrolyte interface, composed an ion-oligomer complex. In Zn||Zn symmetric cell studies, report highly reversible cycling high current densities capacities (e.g., 160 mA cm-2; 2.6 mAh cm-2). By...
This paper reports facile synthesis of nitrogen-doped mesoporous carbon nanospheres (MCNSs) with average diameters around 300 nm and well-controlled pore sizes ranging from 8 to 38 nm, by employing polystyrene-b-poly(ethylene oxide) (PS-b-PEO) diblocks different PS block lengths as the soft templates dopamine carbon-rich precursor. For first time, a linear equation is achieved for quantitative control size MCNSs simply adjusting length diblock copolymer. The resultant possess high surface...
Significance Liquid electrolytes with thermophysical properties analogous to solid polymers, but exceptional liquidlike ionic conductivities, are formed spontaneously when moderate amounts (≤1 M) of inorganic salts coordinate strongly small molecules in a conventional aprotic solvent. Specifically, we report that composed the cyclic liquid ether, dioxolane (DOL), and containing simple salt LiNO 3 able completely bypass → crystalline thermal transition, exhibit abnormally high bulk...
The dendritic electrodeposition of lithium, leading to physical orphaning and chemical instability, is considered responsible for the poor reversibility premature failure electrochemical cells that utilize Li metal anodes. Herein we critically assess roles instability electrodeposited on electrode using planar nonplanar architectures. electrodes allow morphology be interrogated in detail absence complications associated with cell stacking pressure. We find a key determinant Li. report...
Abstract Reversible electrodeposition of metals at liquid‐solid interfaces is a requirement for long cycle life in rechargeable batteries that utilize as anodes. The process has been studied extensively from the perspective electrochemical transformations impact reversibility, however, fundamental challenges associated with maintaining morphological control when intrinsically crystalline solid metal phase emerges an electrolyte solution have less studied, but provide important opportunities...
How surface chemistry influences reactions occurring thereupon has been a long-standing question of broad scientific and technological interest. Here, we consider the relation between at interfaces reversibility electrochemical transformations rechargeable battery electrodes. Using Zn as model system, report that moderate strength chemical interaction deposit substrate-neither too weak nor strong-enables highest stability plating/stripping redox processes. Focused ion beam electron...
This paper reports a novel and remarkably facile approach towards vertically aligned nanosheets on three-dimensional (3D) Ni foams. Conducting polypyrrole (PPy) sheets were grown foam through the volatilization of environmentally friendly solvent from an ethanol-water solution pyrrole (Py), followed by polymerization coated Py in ammonium persulfate (APS) solution. The PPy-decorated foams commercial activated carbon (AC) modified employed as two electrodes for assembly flexible...
Abstract Metallic sodium is receiving renewed interest as a battery anode material because the metal earth‐abundant, inexpensive, and offers high specific storage capacity (1166 mAh g −1 at −2.71 V vs standard hydrogen potential). Unlike metallic lithium, case for Na in rechargeable batteries has already been demonstrated on commercial scale high‐temperature Na||S Na||NiCl 2 secondary batteries, which increases interest. The reversibility of room temperature anodes investigated galvanostatic...
Coupled electron/ion transport is a defining characteristic of electrochemical processes, for example, battery charge/discharge. Analytical models that represent the complex and processes in an electrode terms equivalent electrical circuits provide simple, but successful framework understanding kinetics these coupled phenomena. The premise this review nature time-dependent phase transitions dynamic environments serves as important design parameter, orthogonal to intrinsic mixed conducting...
Aqueous zinc flow batteries (AZFBs) with high power density and areal capacity are attractive, both in terms of cost safety. A number fundamental challenges associated out-of-plane growth undesirable side reactions on the anode side, as well sluggish reaction kinetics active material loss cathode limit practical deployment these batteries. We investigated artificial interphases created using a simple electrospray methodology strategy for addressing each challenges. The effectiveness full...