Results 161 to 170 of about 5,746 (260)

Electrochemical Stabilization of Polytetrafluoroethylene (PTFE) via Electronic Band Engineering Enables Long‐Life, High‐Energy‐Density Li‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
Frontier orbital energy engineering of PTFE by incorporating electron‐withdrawing oxygen‐ and nitrogen‐containing functional groups alters the local electronic environment and elevates the LUMO energy. This molecular modification strategy suppresses reduction‐induced side reactions in dry‐processed anodes.
Minsung Kim   +6 more
wiley   +1 more source

Slowing Down Zinc Electrodeposition Kinetics Can Maximize and Compromise Anode Stability: How Slow Is Too Slow?

open access: yesAngewandte Chemie, EarlyView.
Zinc anode performance is maximized within an optimal deposition‐kinetic window. Additives that tune the deposition exchange current density (i0,Dep) suppress HER at intermediate values, but overly fast kinetics promote dendrites and overly slow kinetics accelerate corrosion/HER.
Md. Arif Faisal   +7 more
wiley   +2 more sources

Reaction kinetics model in liquid and solid phases and its parameterization for room temperature sodium–sulfur battery

open access: yesAIChE Journal, EarlyView.
Abstract A multipore, multiphase, continuum model is assembled for the first time for room temperature sodium–sulfur (RT Na–S) batteries, with Na+ ion transport and redox reactions in the liquid electrolyte phase and semisolid phase of precipitates softened by the electrolyte solvent, as guided by molecular dynamics simulations in this study ...
Hakeem A. Adeoye   +3 more
wiley   +1 more source

On the Role of Reaction Current Distribution to Attain Competitive Solid‐State Batteries

open access: yesAngewandte Chemie, EarlyView.
We conducted a case study on reaction current inhomogeneities when increasing areal loadings and charging rates in NCM‐argyrodite composite cathodes for solid‐state batteries. Using a combination of cycling experiments and operando high‐energy X‐ray diffraction, we show that employing faster conducting Li5.5PS4.5Cl1.5 instead of Li6PS5Cl as catholyte ...
Johannes Hartel   +8 more
wiley   +2 more sources

Information Dense and Industry Scalable Accelerated Formation

open access: yesAdvanced Intelligent Discovery, EarlyView.
Pulsed formation can reduce lithium‐ion battery formation time by over 50% while maintaining or enhancing performance. Validated on 25 Ah prismatic cells, this industry‐scalable method yields thinner, more homogeneous solid electrolyte interphases (SEIs).
Leon Merker   +3 more
wiley   +1 more source

Origin of Electrochemical Activation Leading to Enhanced Cycling Stability of Li‐ and Mn‐Rich Cathodes

open access: yesAngewandte Chemie, EarlyView.
Electrochemical activation is critical for enhancing the performance of Li‐ and Mn‐rich (LMR) cathodes, however, the underlying mechanism has not been fully understood. A spinel‐like phase is found within the C2/m domains of LMR after activation, where above a critical activation voltage is needed. ABSTRACT Electrochemical activation is a critical step
Peng Zuo   +2 more
wiley   +2 more sources

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