Electrochemical Impedance Spectroscopy Investigation of Organic Redox Reactions (p-Benzoquinone/Hydroquinone Couple)─Implications to Organic Redox Flow Batteries

2021 ◽  
Author(s):  
Miji E. Joy ◽  
Anand Kumar Tripathi ◽  
Rubul Das ◽  
Rajan Maurya ◽  
Manoj Neergat
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Redox Reactions ◽  
Electrochemical Impedance ◽  
Redox Flow Batteries ◽  
Flow Batteries

scholarly journals Verification of Redox Flow Batteries’ Functionality by Electrochemical Impedance Spectroscopy Tests

Batteries ◽  
2018 ◽  
Vol 4 (4) ◽  
pp. 58 ◽  
Author(s):  
Daniel Manschke ◽  
Thorsten Seipp ◽  
Sascha Berthold ◽  
K. Friedrich
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Comparison Method ◽  
Redox Flow Batteries ◽  
Current Voltage ◽  
Flow Batteries ◽  
Quantitative Statement ◽  
Characteristic Values ◽  
Eis Measurements

The state-of-the-art functionality test of classic redox-flow-stacks measures the current–voltage characteristic with the technical electrolyte. This research paper aims to simplify the validation of redox flow batteries’ functionality by conducting electrochemical impedance spectroscopy (EIS) on redox flow stacks. Since the electrolyte used in the batteries is usually toxic and aggressive, it would be a significant simplification to verify the functionality with an alternative, non-toxic fluid. EIS measurements on batteries with larger sized electrodes, multiple cells, and different fluids were performed. It was demonstrated that all impedances are repeatable, thereby validating this procedure as a qualification method for full-size and complex batteries with an alternative fluid. EIS measurements were able to detect deliberately manipulated cells. This research uses three different analysis methods for the acquired data to identify errors. The respective approaches are, firstly, (1) a comparison of the Nyquist plots; secondly, (2) a comparison of the Bode plots; and thirdly, (3) a comparison of the calculated characteristic values of the equivalent circuits. The analysis found that all methods are suitable to detect errors in the batteries. Nevertheless, the bode-plot comparison method proves to be especially advantageous, because it enables a quantitative statement.

Resolving Losses at the Negative Electrode in All-Vanadium Redox Flow Batteries Using Electrochemical Impedance Spectroscopy

2014 ◽  
Vol 161 (6) ◽  
pp. A981-A988 ◽  
Author(s):  
Che-Nan Sun ◽  
Frank M. Delnick ◽  
Douglas S. Aaron ◽  
Alexander B. Papandrew ◽  
Matthew M. Mench ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Negative Electrode ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Adoption of thermal behavior as an indicator for enhancement of the EIS analysis for NCR 18650B Commercial Lithium-ion batteries system

MRS Advances ◽  
2018 ◽  
Vol 3 (53) ◽  
pp. 3155-3162 ◽  
Author(s):  
Bo Dong ◽  
Yige Li ◽  
Kazi Ahmed ◽  
Cengiz Sinan Ozkan ◽  
Mihrimah Ozkan
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Redox Reactions ◽  
Electrochemical Impedance ◽  
Lithium Ion ◽  
Driving Simulation ◽  
Diffusion Behavior ◽  
Electrochemical Systems ◽  
Passivation Layers ◽  
Eis Analysis

ABSTRACTIt is of great significance to understand and monitor the condition of the commercial batteries in EVs/HEVs and stationary applications under their real working situations. Electrochemical impedance spectroscopy (EIS) has been proved to be a powerful technique for investigating the kinetics and redox reactions at the interfaces, as well as the diffusion behavior in the bulks of every electrochemical systems. Focusing on tracing the temperature of the commercial batteries during the EIS tests at different stages in a well-designed four-week driving simulation, the value of temperature profile during the EIS test as an enhanced indicator to help analyzing the formation of the passivation layers, electrolyte impedance development as well as lithium plating on the anode through EIS analysis have been found.

Application of electrochemical impedance spectroscopy to the study of surface processes

2011 ◽  
Vol 76 (12) ◽  
pp. 1825-1854 ◽  
Author(s):  
Manuela Rueda Rueda ◽  
Francisco Prieto Dapena
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Adsorption Kinetics ◽  
Redox Reactions ◽  
Electrochemical Impedance ◽  
Surface Processes ◽  
Surface Electrode ◽  
Electrode Processes ◽  
Kinetic Information ◽  
Partially Blocked Electrodes

The application of Electrochemical Impedance Spectroscopy to the study of surface electrode processes is reviewed. The impedance expressions and the physical meaning of the parameters included in them are shown for three surface processes: adsorption kinetics, diffusion towards partially blocked electrodes and surface confined redox reactions. The models are applied to selected examples, showing the capability of Electrochemical Impedance Spectroscopy to obtain fundamental kinetic information of these processes. A review with 83 references.

Titania Containing Cathodes for Lithium-Sulfur Batteries: Case Studies by Electrochemical Impedance Spectroscopy

2021 ◽  
Vol 105 (1) ◽  
pp. 169-176
Author(s):  
Ladislav Kavan ◽  
Monika Vinarcikova ◽  
Magda Zlámalová ◽  
Marketa Zukalova
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrolyte Solution ◽  
Cathode Materials ◽  
Redox Reactions ◽  
Electrochemical Impedance ◽  
Barrier Material ◽  
Lithium Sulfur Batteries ◽  
Commercial Carbon ◽  
Lithium Sulfur

Electrochemical impedance spectroscopy is used to study novel cathode materials for lithium-sulfur batteries, based on commercial carbon and titania. Coin cells with Li anode are investigated at various stages of galvanostatic cycling. For comparison, also symmetrical coin cells with a pair of positive (S/C/TiO2) or negative (Li) electrodes are studied. In addition to the application of titania as a barrier material impeding the polysulfide diffusion in the electrolyte solution, the inherent Li-insertion activity of TiO2 (anatase) and its contribution to the sulfur redox reactions is discussed.

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