Results 191 to 200 of about 27,947 (223)

Analysis of the Electrochemical Stability of Sulfide Solid Electrolyte Dry Films for Improved Dry‐Processed Solid‐State Batteries

Advanced Functional Materials, EarlyView.
An adapted processing for solvent‐free argyrodite solid electrolyte films based on insights into degradation mechanisms of the widely used binder polytetrafluoroethylene is presented. By adapting the dry film processing, long‐term cycling in Si||NMC pouch cells is demonstrated over more than 1000 cycles with a capacity retention of more than 80%, and ...
Maria Rosner, Sahin Cangaz, Felix Hippauf, Susanne Dörfler, Burak Aktekin, Thomas Meyer, Anja Henss, Thomas Abendroth, Holger Althues, Jürgen Janek, Stefan Kaskel   +10 more
wiley   +1 more source

Deformation and Degradation in 18650 Li‐Ion Cells Under Freeze‐Thaw Cycling

Advanced Functional Materials, EarlyView.
This study investigates the impact of freezethaw degradation of 18650 cells via combined electrochemical and x‐ray imaging studies. High‐resolution synchrotron X‐ray tomography reveals deformation of the jelly‐roll structure and delamination of electrode active materials in cells cycled at 1C and 4C. These structural changes are quantitatively assessed
Xunkai Chen, Nicole M. Callen, Nghia T. Vo, Michael Drakopoulos, Zhong Zhong, Kelsey B. Hatzell   +5 more
wiley   +1 more source

A Study of Corrosion Electrochemistry of Steel in Chloride Contaminated Concrete Using a Rapid Scan Polarization Technique

CORROSION 1987, 1987
Abstract Corrosion of steel in portland cement concrete has been found to be very damaging and costly to many countries in the world. It is possible to control this corrosion damage in several ways and one of these is the use of inhibitors.
Carl E. Locke, Oladis Rincon
openaire   +2 more sources

Correlation of surface concentration polarization with the surface electrochemistry of a permselective Membrane: An ex situ electrical impedance spectroscopy study

Journal of the Taiwan Institute of Chemical Engineers, 2018
Abstract Surface concentration polarization induces fouling processes accompanied by changes in the resistance of a semipermeable membrane, but the connection between these two phenomena has not yet been evaluated. Here, we propose to connect them by introducing the concept of pH equivalent (pHeq), which is used to describe the electrical properties ...
Lingling Li, Ruiming Zhao, Li Wang, Shikui Wu, TsingHai Wang   +4 more
openaire   +3 more sources

Crystal Structure, Spin Polarization, Solid-State Electrochemistry, and High n-Type Carrier Mobility of a Paramagnetic Semiconductor: Vanadyl Tetrakis(thiadiazole)porphyrazine

Inorganic Chemistry, 2011
We report the synthesis, crystal structure, and magnetic, electrochemical, and carrier-transport properties of vanadyl tetrakis(thiadiazole)porphyrazine (abbreviated as VOTTDPz) with S = ½. X-ray crystal analysis reveals two polymorphs, the α and β forms; the former consists of a 1D regular π stacking, while the latter forms a 2D π network.
Yasuhito Miyoshi, Kouji Takahashi, Takuya Fujimoto, Hirofumi Yoshikawa, Michio M. Matsushita, Yukio Ouchi, Mikael Kepenekian, Robert Vincent, DONZELLO, Maria Pia, ERCOLANI, Claudio, Kunio Awaga   +10 more
openaire   +5 more sources

Structure and Electrochemistry of LiV₃O₈ Thin Film Electrode: Effect of Diffusion Rate and Concentration on Cell Polarization

ECS Meeting Abstracts, 2019
Electrochemistry of lithium trivanadate (LiV3O8, LVO) has been extensively studied due to its large capacity and high rate capability. The material undergoes both insertion/extraction and phase transform reactions during discharge and charge in a Li-ion battery. However, the rate limiting factors of the material are unclear over the cycling window of
Yiman Zhang, Amy C. Marschilok, Kenneth J Takeuchi, Andrew Kercher, Esther S Takeuchi, Nancy J. Dudney   +5 more
openaire   +2 more sources

Extra capacity beyond electrochemistry: electrons storage by spin-polarization

Science Bulletin, 2020
Huicong Yang, Huicong Yang, Feng Li, Feng Li   +3 more
openaire   +4 more sources

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Dependence of Quinone Electrochemistry on Solvent Polarity and pH

Journal of The Electrochemical Society, 2022
We studied the polarographic reduction of quinones in aqueous/organic mixtures with dielectric constants (ε) from 78.4 down to 47. Added organic co-solvents were either protic or aprotic. The increase in polarographic half-wave potential,E1/2, with decliningεwas successfully fit to the Born equation down toε≈ 55.
Todd P. Silverstein, Jason R. Rosé
openaire   +1 more source

Interfacial Electrochemistry of ZnO: An Influence of the Surface Polarity?

ECS Meeting Abstracts, 2009
Abstract not Available.
Anne-Laure Joudrier, François Levy, Nathalie Simon, M. Bouttemy, François Levy, G. Feuillet, Arnaud Etcheberry   +6 more
openaire   +2 more sources

Alleviating the common confusion caused by polarity in electrochemistry

Journal of Chemical Education, 1989
The issue of polarity encountered in electrochemistry and relevant to a variety of electrochemical concepts often confuses students and is an unnecessary deterrent to the study of electrochemistry.
P. J. Moran, E. Gileadi
openaire   +2 more sources