A least-squares error minimization approach in the determination of ferric ion diffusion coefficient of Fricke-infused dosimeter gels

2005 ◽  
Vol 32 (4) ◽  
pp. 1017-1023 ◽  
Author(s):  
Y. J. Tseng ◽  
Sung-Cheng Huang ◽  
W. C. Chu
Keyword(s):  
Diffusion Coefficient ◽  
Least Squares ◽  
Ferric Ion ◽  
Error Minimization ◽  
Ion Diffusion ◽  
Minimization Approach

Lithium Ion Diffusion Through Glassy Carbon Plate

1997 ◽  
Vol 496 ◽  
Author(s):  
M. Inaba ◽  
S. Nohmi ◽  
A. Funabiki ◽  
T. Abe ◽  
Z. Ogumi
Keyword(s):  
Diffusion Coefficient ◽  
Glassy Carbon ◽  
Lithium Ion ◽  
Ion Diffusion ◽  
Irreversible Capacity ◽  
Oxidation Current ◽  
Current Curve ◽  
Carbon Plate ◽  
Lithium Ion Diffusion

ABSTRACTThe electrochemical permeation method was applied to the determination of the diffusion coefficient of Li+ion (DLi+) in a glassy carbon (GC) plate. The cell was composed of two compartments, which were separated by the GC plate. Li+ions were inserted electrochemically from one face, and extracted from the other. The flux of the permeated Li+ions was monitored as an oxidation current at the latter face. The diffusion coefficient was determined by fitting the transient current curve with a theoretical one derived from Fick's law. When the potential was stepped between two potentials in the range of 0 to 0.5 V, transient curves were well fitted with the theoretical one, which gaveDLi+ values on the order of 10−8cm2s−1. In contrast, when the potential was stepped between two potentials across 0.5 V, significant deviation was observed. The deviation indicated the presence of trap sites as well as diffusion sites for Li+ions, the former of which is the origin of the irreversible capacity of GC.

scholarly journals Determination of the Lithium Ion Diffusion Coefficient in Graphite

1999 ◽  
Vol 146 (1) ◽  
pp. 8-14 ◽  
Author(s):  
Ping Yu ◽  
B. N. Popov ◽  
J. A. Ritter ◽  
R. E. White
Keyword(s):  
Diffusion Coefficient ◽  
Lithium Ion ◽  
Ion Diffusion ◽  
Lithium Ion Diffusion

Rapid Determination of the Li-Ion Diffusion Coefficient in Intercalation Electrodes by Intermittent Current Interruption

2021 ◽  
Vol MA2021-02 (1) ◽  
pp. 35-35
Author(s):  
Yu-Chuan Chien ◽  
Haidong Liu ◽  
Ashok Sreekumar Menon ◽  
William Brant ◽  
Daniel Brandell ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Rapid Determination ◽  
Ion Diffusion ◽  
Current Interruption ◽  
Li Ion ◽  
Intercalation Electrodes

Conductance method for the determination of ion diffusion coefficient through a nanochannel

2009 ◽  
Vol 4 (4) ◽  
pp. 192-197 ◽  
Author(s):  
B. Xiao ◽  
Z. Jin ◽  
Y. Sun ◽  
C. Wu
Keyword(s):  
Diffusion Coefficient ◽  
Ion Diffusion ◽  
Conductance Method

Determination of the ion diffusion coefficient of cracked porous media

2020 ◽  
pp. 273-282
Author(s):  
A.-S. Poupeleer ◽  
J. Carmeliet ◽  
S. Roels ◽  
D. Van Gemert
Keyword(s):  
Porous Media ◽  
Diffusion Coefficient ◽  
Ion Diffusion ◽  
Cracked Porous Media

scholarly journals Determination of Diffusion Coefficients of Lithium in Solid Electrolyte LiPON

Batteries ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 21
Author(s):  
Alexander Rudy ◽  
Alexander Mironenko ◽  
Victor Naumov ◽  
Alena Novozhilova ◽  
Alexander Skundin ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Solid Electrolyte ◽  
Leakage Current ◽  
Diffusion Coefficients ◽  
Structural Model ◽  
Theoretical Curve ◽  
Ion Diffusion

A structural model of LiPON solid electrolyte, containing elements that simulate drift conductivity, diffusion conductivity, and leakage current was proposed. The dependence of the impedance of the structural model on frequency was calculated, and the parameters of the model at which the theoretical curve best approximates the experimental Nyquist diagrams were determined. Based on these data, the ion diffusion coefficient and conductivity of LiPON were calculated, which are D1 = 1.5 × 10−11 cm2/s and σ = 1.9 × 10−6 S/cm, respectively.

scholarly journals Determination of the Lithium Ion Diffusion Coefficient in Graphite Anode Material

2001 ◽  
Vol 17 (05) ◽  
pp. 385-388 ◽  
Author(s):  
Tang Zhi-Yuan ◽  
◽  
Xue Jian-Jun ◽  
Liu Chun-Yan ◽  
Zhuang Xin-Guo
Keyword(s):  
Diffusion Coefficient ◽  
Anode Material ◽  
Lithium Ion ◽  
Graphite Anode ◽  
Ion Diffusion ◽  
Lithium Ion Diffusion
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