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Title: Current Density Distribution in Electrochemical Cells with Small Cell Heights and Coplanar Thin Electrodes as Used in ec-S/TEM Cell Geometries

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.0211904jes· OSTI ID:1502547

The electrochemical engineering aspects of high aspect ratio cells, such as those used in in situ electrochemical scanning transmission microscopy (ec-S/TEM) were examined, focusing on aspects that could cause non-uniform current distribution. Having a uniform current distribution across the working electrode is important for any spectroelectrochemical technique in order to provide accurate electrochemical information as well as structural electrolyte-electrode interface information. An analytical model was developed to determine current density distribution and a Wagner number was derived for a small cell height with coplanar electrodes. The main assumptions of this analysis are: 1) mass transport effects are negligible, 2) a uniform potential distribution in the direction of the cell height due to their small size, and 3) the working electrode potential is constant across its length. With our analysis, the assumptions were found to be reasonable. In addition, the effect of the conductivity and thickness of the thin film electrode and its potential effect on current density distribution have been analyzed. Now, with this work, high aspect ratio cells with a small cell heights and coplanar thin electrodes can be analyzed to determine their current density distribution.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Workforce Development for Teachers and Scientists (WDTS)
Grant/Contract Number:
AC05-00OR22725; SC0014664
OSTI ID:
1502547
Journal Information:
Journal of the Electrochemical Society, Vol. 166, Issue 4; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

References (40)

Designing spectroelectrochemical cells: A review journal May 2018
Electron microscopy of specimens in liquid journal October 2011
Structural and Morphological Evolution of Lead Dendrites during Electrochemical Migration journal November 2013
Electronmicroscope investigations of the initial stages of silver electrodeposition journal November 1976
Description and performance of a novel aqueous all-copper redox flow battery journal December 2014
Electrochemical Measurements in In Situ TEM Experiments journal January 2017
Current status and future directions for in situ transmission electron microscopy journal November 2016
A potentiostatic study of the electrochemical nucleation of silver on vitreous carbon journal January 1982
The theory of chronoamperometry for the investigation of electrocrystallization journal October 1987
Time-resolved in situ Raman spectroscopy of working catalysts: sulfated and tungstated zirconia : Time-resolved raman spectroscopy of sulfated and tungstated zirconia catalyst journal May 2002
The morphology and nucleation kinetics of copper islands during electrodeposition journal May 2006
The electrical conductivity and Hall effect of glassy carbon journal October 1983
Atomic-Resolution Electrochemistry with the Atomic Force Microscope: Copper Deposition on Gold journal January 1991
Evolution of surface width in electrochemical nucleation and growth journal March 2010
Observation of materials processes in liquids by electron microscopy journal January 2015
Nanoscale Imaging of Fundamental Li Battery Chemistry: Solid-Electrolyte Interphase Formation and Preferential Growth of Lithium Metal Nanoclusters journal February 2015
Quantifying Electrochemical Nucleation and Growth of Nanoscale Clusters Using Real-Time Kinetic Data journal February 2006
Theoretical and experimental studies of multiple nucleation journal July 1983
Factors influencing the interfacial width of copper gradients on gold produced by spatiotemporal control of the in-plane electrochemical potential distribution: electrode geometry and plating solution composition journal October 2004
Direct in Situ Determination of the Mechanisms Controlling Nanoparticle Nucleation and Growth journal September 2012
An Electrochemical Study of the Reactivity at the Lithium Electrolyte/Bare Lithium Metal Interface journal January 1992
Theoretical Analysis of the Current Density Distribution in Electrolytic Cells journal January 1951
Preparation of a cost-effective, scalable and energy efficient all-copper redox flow battery journal October 2015
Electron–Water Interactions and Implications for Liquid Cell Electron Microscopy journal September 2014
The potentiostatic study of the growth of deposits on electrodes journal July 1959
In Situ Study of the Growth Kinetics of Individual Island Electrodeposition of Copper journal April 2006
Dynamic microscopy of nanoscale cluster growth at the solid–liquid interface journal July 2003
Observation and Quantification of Nanoscale Processes in Lithium Batteries by Operando Electrochemical (S)TEM journal February 2015
In Situ Transmission Electron Microscopy of Lead Dendrites and Lead Ions in Aqueous Solution journal June 2012
Visualization of Electrode–Electrolyte Interfaces in LiPF 6 /EC/DEC Electrolyte for Lithium Ion Batteries via in Situ TEM journal March 2014
Quantitative Electrochemical Measurements Using In Situ ec-S/TEM Devices journal March 2014
Experimental procedures to mitigate electron beam induced artifacts during in situ fluid imaging of nanomaterials journal April 2013
In situ scanning tunneling microscopy journal September 1990
Direct Visualization of Solid Electrolyte Interphase Formation in Lithium-Ion Batteries with In Situ Electrochemical Transmission Electron Microscopy journal July 2014
In-Situ Electrochemical Transmission Electron Microscopy for Battery Research journal April 2014
A Sealed Liquid Cell for In Situ Transmission Electron Microscopy of Controlled Electrochemical Processes journal August 2015
A review of the analysis of multiple nucleation with diffusion controlled growth journal June 2003
A mathematical model of the current density distribution in electrochemical cells journal January 2011
Factors influencing quantitative liquid (scanning) transmission electron microscopy journal January 2014
Electrochemical nucleation and the classical theory: Overpotential and temperature dependence of the nucleation rate journal June 2008

Cited By (1)

Electrochemical Behavior of Carbon Electrodes for In Situ Redox Studies in a Transmission Electron Microscope journal October 2019