scholarly journals The Error in Measurements of Electrode Kinetics Caused by Nonuniform Ohmic-Potential Drop to a Disk Electrode

1973 ◽  
Vol 120 (2) ◽  
pp. 256 ◽  
Author(s):  
William H. Tiedemann ◽  
John Newman ◽  
Douglas N. Bennion
Keyword(s):  
Potential Drop ◽  
Electrode Kinetics ◽  
Disk Electrode ◽  
Ohmic Potential Drop

Corrosion of Electronic and Magnetic Devices and Materials

1996 ◽  
Vol 451 ◽  
Author(s):  
Gerald S. Frankel
Keyword(s):  
Thin Film ◽  
Failure Modes ◽  
Galvanic Corrosion ◽  
Potential Drop ◽  
Magnetic Devices ◽  
Disk Structure ◽  
Magnetic Layers ◽  
Ohmic Potential Drop ◽  
Corrosion Problem ◽  
Corrosion Susceptibility

ABSTRACTCorrosion of thin film structures commonly used in electronic and magnetic devices is discussed. Typical failure modes are presented, and galvanic corrosion is discussed in some detail since it is one common problem with such devices. A graphical explanation for the determination of the ohmic potential drop during galvanic corrosion is presented. The corrosion problem of thin film disks is shown to have changed during the past ten years owing to changes in disk structure. The corrosion susceptibility of two antiferromagnetic alloys used for exchange coupling to soft magnetic layers is discussed.

scholarly journals Kinetics of electrochemical intercalation of lithium ion into Li[Li0.2Co0.3Mn0.5]O2 electrode from Li2SO4 solution

2021 ◽  
Vol 23 (09) ◽  
pp. 656-687
Author(s):  
K.C. Mahesh ◽  
◽  
G.S. Suresh ◽  
Keyword(s):  
Aqueous Electrolyte ◽  
Lithium Ion ◽  
Potential Drop ◽  
Charge Transfer Resistance ◽  
Transfer Resistance ◽  
Ohmic Potential Drop ◽  
Ion Intercalation ◽  
Time Invariant ◽  
Kinetics Of ◽  
Titration Technique

The kinetics of electrochemical lithium ion intercalation into Li[Li0.2Co0.3Mn0.5]O2 electrode in 2 M Li2SO4 aqueous electrolyte has been studied using two electroanalytical methods, namely, potentiostatic intermittent titration technique (PITT) and galvanostatic intermittent titration technique (GITT). The results are compared with those from nonaqueous electrolytes. Layered, lithium-rich Li[Li0.2Co0.3Mn0.5]O2 cathode material was synthesized by reactions under autogenic pressure at elevated temperature (RAPET) method. The effects of ohmic potential drop and charge-transfer resistance have been considered while predicting the current transients obtained with aqueous electrolyte. For PITT and GITT, we have defined their characteristic time-invariant functions, It1/2 and dE/dt1/2, respectively to present the diffusion time constant τ. Application of different theoretical diffusion models for treating the results obtained by the above-mentioned techniques allowed us to calculate the diffusion coefficient of lithium ions (D) at different potentials (E). The intercalation process is explained by considering the possible attractive interactions of the intercalated species in terms of Frumkin intercalation isotherm. We have observed a strictcorrespondence between the peaks of the intercalation capacitance and the minima in the corresponding log D vs. E curve.

scholarly journals Analysis of nanofiber-based La0.2Sr0.8TiO3–Gd0.2Ce0.8O1.9 electrode kinetics

RSC Advances ◽  
2018 ◽  
Vol 8 (62) ◽  
pp. 35658-35663
Author(s):  
Yuwei Wang ◽  
Erqing Zhao ◽  
Liquan Fan ◽  
Qianjun Hu ◽  
Xijun Liu ◽  
...  
Keyword(s):  
Potential Drop ◽  
Electrode Kinetics ◽  
Ohmic Resistance

NF-LST–GDC shows lower ohmic resistance (determined using CI and EIS techniques), smaller potential drop and better kinetics than NP-LST–GDC.

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