Showing 1-25 of 2,386 resultsfor "Index Terms":Electrochemical Impedance Spectroscopy Measurements
"Index Terms":Electrochemical Impedance Spectroscopy Measurements
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Design of divider circuit for electrochemical impedance spectroscopy measurement system
2018 International Symposium on VLSI Design, Automation and Test (VLSI-DAT)
Year: 2018 | Conference Paper |
Cited by: Papers (2)
In an electrochemical impedance spectroscopy (EIS) measurement system, it needs to calculate the amplitude ratio between the reference signal and measured signal, which reqiures a divider. In this work, a chip, which cosists of peak detectors, a divider and other signal processing circuits, was proposed for the EIS measurement system. This chip is capable of obtaining the amplitude ratio of refere...Show More
SOH Estimation Algorithm and Hardware Platform for Lithium-ion Batteries
2024 IEEE Vehicle Power and Propulsion Conference (VPPC)
Year: 2024 | Conference Paper |
This paper presents a state-of-health (SOH) estimation algorithm and hardware platform for lithium-ion batteries. Based on features obtained from the battery's electrochemical impedance spectroscopy (EIS), an artificial neural network (ANN)-based SOH algorithm is developed. EIS measurements collected at different aging levels are utilized to train and test the SOH estimation algorithm. The minimum...Show More
Low-Cost Impedance Spectroscopy System Based on a Logarithmic Amplifier
Sabrina Grassini;Simone Corbellini;Emma Angelini;Franco Ferraris;Marco Parvis
Impedance spectroscopy (IS) involves measurements of impedance amplitudes, which often span more than six/seven decades. Currently available IS systems employ sophisticate front-ends to cope with this wide impedance range and, consequently, the cost of the measuring instrument greatly increases. This paper describes an alternative low-cost solution, which is based on a logarithmic front-end and on...Show More
A Method for Measuring Electrochemical Impedance Spectroscopy in High-voltage Battery Systems
Ning Xie;Wei Zhao;Wenzhi Lin;Yukai Chen;Zhenglei Wang;Yang Xuan
2024 International Conference on Energy and Electrical Engineering (EEE)
Year: 2024 | Conference Paper |
Electrochemical impedance spectroscopy can be used to analyze the internal health status of batteries and estimate their lifetime. The traditional online method of measuring the electrochemical impedance spectrum of battery systems is difficult to apply in high-voltage battery systems and cannot be applied to high-frequency measurements. Therefore, this paper proposes a measurement method for elec...Show More
Capacitive Impedance Spectroscopy measuring system
2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials
Year: 2009 | Conference Paper |
Cited by: Papers (1)
During the last years the method of the Electrochemical Impedance Spectroscopy has been intensively developed. It is the most powerful electrochemical method, because of it unique ability to investigate the structure and the properties of the objects in a wide frequency range. The Capacitive Impedance Spectroscopy (CIS) is of special interest. The further development of this principle is given in ...Show More
Drift Correction in Operando Electrochemical Impedance Spectroscopy for Batteries Research
2023 International Workshop on Impedance Spectroscopy (IWIS)
Year: 2023 | Conference Paper |
Cited by: Papers (1)
Operando Electrochemical Impedance Spectroscopy on a cycling battery involves several challenges. As the battery state is continuously changing during discharge/charge cycling, the fundamental stability criterion is not fulfilled, and certain drift of the impedance data is emerged. In the present study, an algorithm for the drift correction was developed for different sets of synthetic data. Vario...Show More
High-Throughput Antimicrobial Susceptibility Assessment Using Non- Faradaic Electrochemical Impedance Spectroscopy
Rhea Patel;Surya Varchasvi Devaraj;Hasika Suresh;Kundan Saha;Maryam Shojaei Baghini;Sameer Sonkusale
In this letter, we present a label-free antimicrobial susceptibility test using non-Faradaic electrochemical impedance spectroscopy (nF-EIS) as a viable method to rapidly quantify antibiotic resistance. Different antibiotic resistant strains of Shewanella oneidensis were used as a model bacteria to measure minimum inhibitory concentration of antibiotic, namely, kanamaycin needed to kill sufficient...Show More
Degradation Analysis of Lithium-ion Capacitors based on Electrochemical Impedance Spectroscopy
Tarek Ibrahim;Muhammad Usman Tahir;Vaclav Knap;Daniel Ioan Stroe
2024 IEEE Energy Conversion Congress and Exposition (ECCE)
Year: 2024 | Conference Paper |
Lithium-ion capacitors (LICs) are utilized in various energy storage applications due to their wide operating temperature range, extended lifecycle, and higher power capability than lithium-ion batteries (LIBs). Understanding LIC degradation behavior is necessary for ensuring system reliability, performance, and lifetime. Unlike traditional methods, electrochemical impedance spectroscopy (EIS) all...Show More
Measurement of Particle Size Distribution in Nano Colloidal Dispersions Using Electrochemical Impedance Spectroscopy
2024 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)
Year: 2024 | Conference Paper |
Electrochemical impedance spectroscopy, as a method for characterizing the impedance properties of materials, can be used to evaluate relative changes in particle size in nano-colloidal dispersions. By applying ultrasonic agitation for varying duration, we induce changes in particle size distribution, then measure the EIS response, including impedance magnitude and phase. The results are compared ...Show More
Influence of Sensing Contacts on Electrochemical Impedance Spectroscopy Measurement of EV Batteries
2024 ELEKTRO (ELEKTRO)
Year: 2024 | Conference Paper |
This article deals with the influence of the design of the measuring contact of electrochemical cells on the results measured by electrochemical impedance spectroscopy (EIS). Since battery cells can reach internal series resistance values in the sub milliohm range, impedance measurement becomes a problem. In general, impedance measurement in ranges smaller than 1 mΩ is problematic and makes it d...Show More
Fast Electrochemical Impedance Measurement and Classification System Based on Machine Learning Algorithms
2023 30th IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Year: 2023 | Conference Paper |
Cited by: Papers (1)
This work focuses on the analysis and detection of impedance changes in tomatoes using a wide-band Electrochemical Impedance Spectroscopy (EIS) system. Homogeneous tomato samples were subjected to EIS testing over a period of 72 hours to monitor the impedance variations during this time. The designed wide-band EIS system applied a structured signal to the tomato samples with a wide frequency range...Show More
Analysis of Electrochemical Impedance Spectroscopy Data for Sputtered Iridium Oxide Electrodes
Henry M. Lutz;Yupeng Wu;Cynthia C. Eluagu;Stuart F. Cogan;Kevin J. Otto;Mark E. Orazem
2024 46th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Year: 2024 | Conference Paper |
The measurement model program from Watson and Orazem was used to analyze electrochemical impedance spectroscopy (EIS) data for sputtered iridium oxide film (SIROF) micro-electrodes at potentials ranging from -0.4 to 0.6 V (Ag/AgCl). The frequency range used for the analysis was that determined to be consistent with the Kramers–Kronig relations. In addition, frequencies at which the ohmic impedance...Show More
Study of Methanol Concentration Effect in Direct Methanol Fuel Cells by Electrochemical Impedance Spectroscopy
Elena Giordano;Andrea Zaffora;Leonardo Iannucci;Monica Santamaria;Sabrina Grassini
2023 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)
Year: 2023 | Conference Paper |
Cited by: Papers (1)
This paper analyzes and discusses the performance of a DMFC as a function of methanol aqueous solution concentration fed at the anode, using the Electrochemical Impedance Spectroscopy (EIS). Impedance data obtained were analyzed through the development of an equivalent circuit model. Electrochemical impedance spectroscopy was used to estimate the membrane conductivity and to model the electrochemi...Show More
Parameter Variations of Equivalent Circuit Model of Lithium-ion Capacitor
2023 IEEE Energy Conversion Congress and Exposition (ECCE)
Year: 2023 | Conference Paper |
This paper presents characterization for equivalent circuit model (ECM) parameters variation for lithium-ion capacitor (LiC) under different voltage values. A set of experimentally obtained electrochemical impedance spectroscopy (EIS) data for LiC is fitted using the simplex algorithm to obtain the values for ECM parameters. The model-fit EIS data is compared with the measured EIS data to validate...Show More
Influence of Surface Passivation on Campylobacter jejuni Specificity of an Impedimetric Genosensor for Poultry Infection Monitoring in Agri-Food Industry
In our letter, we propose an impedimetric genosensor for the rapid and cost-effective detection of Campylobacter Jejuni (C. jejuni) for poultry infection monitoring for agri-food applications focusing on optimizing its specificity. The genosensor is based on gold electrodes functionalized with thiolated single-stranded DNA. The devices are characterized through electrochemical impedance spectrosco...Show More
Discrete Pulse Control Strategy for Embedded Li-ion Batteries Broadband EIS Measurement System
Electrochemical impedance spectroscopy (EIS) of lithium-ion (Li-ion) batteries provides comprehensive information on material properties, interfacial phenomena, and electrochemical reactions. An embedded EIS measurement system, based on the power interface dc–dc converter of Li-ion battery, can achieve nondestructive, low-cost, and accurate online EIS measurement. Therefore, it holds great potenti...Show More
Uncertainty Characterization of a Practical System for Broadband Measurement of Battery EIS
Alessio De Angelis;Emanuele Buchicchio;Francesco Santoni;Antonio Moschitta;Paolo Carbone
Electrochemical impedance spectroscopy (EIS) is of fundamental importance for characterization and monitoring of rechargeable batteries in automotive, energy storage, and electronics sectors. In this article, a low-complexity practical system for EIS of batteries is presented, and the uncertainty associated with its measurement results is analyzed. The system is based on a voltage-controlled curre...Show More
Fast Measurement of Impedance Calculation for Electrochemical Impedance Spectroscopy
En-Chi Yang;Suz-Ting Wang;Kusn-Lin Liu;Wen-Ho Juang;Ming-Hwa Sheu;How-Chiun Wu;Shin-Chi Lai
2023 20th International SoC Design Conference (ISOCC)
Year: 2023 | Conference Paper |
Cited by: Papers (1)
This paper presents a design for a fast measurement electrochemical impedance spectroscopy (EIS) system, which differs from the traditional single-frequency point calculation approach. The proposed system is capable of simultaneously measuring 23 frequency points within the frequency range of 1Hz-10KHz. Additionally, it has an impedance measurement range of 100$\omega$ - 1M$\omega$. The experiment...Show More
Prediction of state of charge of Lithium-ion rechargeable battery with electrochemical impedance spectroscopy theory
2010 5th IEEE Conference on Industrial Electronics and Applications
Year: 2010 | Conference Paper |
For the purpose of predicting the state of charge of Lithium-ion rechargeable battery accurately, we introduced the method of electrochemical impedance spectroscopy to solve the problem. The experiment data of impedance spectroscopy is comprised of an inductive arc in the high-frequency region and two capacitive arcs in the low-frequency region, and by which the reasonable equivalent circuit of ba...Show More
Modeling of Li$_{x}$FePO$_{4}$ Cathode Li-Ion Batteries Using Linear Electrical Circuit Model
It is demonstrated that a physical-based equivalent electrical circuit could be developed based on electrochemical impedance spectroscopy (EIS) to describe electrochemical performance of a commercial Li1-xPO4-cathode, Li-ion cell. This model uses only EIS modeling and Fourier transform techniques to provide reasonably accurate voltage performance characteristics while providing insight into the ph...Show More
Impedance Analysis of Hybrid Supercapacitor using EIS under Temperature and SOC Variable Conditions
G. Patrizi;F. Corti;M. Laschi;D. Vangi;A. Reatti;M. Catelani;L. Ciani
2024 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)
Year: 2024 | Conference Paper |
Nowadays, a cutting-edge technology for energy storage systems which is becoming useful in many different application scenarios is represented by hybrid supercapacitors (SC). Before using such innovative technology in an actual application, it is crucial to accurately characterize the device under the real operating conditions that it will have to endure. In this regard, Electrochemical Impedance ...Show More
Circuit parameters extraction algorithm for a lithium-ion battery charging system incorporated with electrochemical impedance spectroscopy
2018 IEEE Applied Power Electronics Conference and Exposition (APEC)
Year: 2018 | Conference Paper |
Cited by: Papers (22)
In recent years, battery chargers are not only capable of charging a battery, but also can measure the internal impedance spectrum of a battery in real-time. Measured battery impedance represents electrochemical characteristics, which are used to analyze the internal conditions of a battery and can be represented by a circuit model. This paper presents an equivalent circuit parameter extraction al...Show More
Electrochemical Understanding of the Difference Between Spherocytes Suspension From Normal Discocytes for Hemolytic Anemia Detection
Aindrila Roy;Debopam Bhattacharya;Payel Biswas;Subhadip Chakraborty;Rajen Haldar;Sanatan Chattopadhyay
Early diagnosis of hemolytic anemia, which often arises due to spherocytosis, is crucial for preventing severe health complications. This study demonstrates a possible approach to detect the condition by examining the electrochemical signatures of spherocyte suspensions. Cyclic voltammetry (CV) reveals distinct oxidation peaks at around 0.67 V for healthy discocytes and 0.72 V for spherocytes, wit...Show More
Multi-Cell and Wide-Frequency In-Situ Battery Impedance Spectroscopy
The use of dc–dc converters for in-situ electrochemical impedance spectroscopy has been investigated by several works in recent years, with different implementation strategies and promising results. There are, however, two important limitations that still hinder a commercial application of this technique: first, the need to deal with the battery discharge during the measurement, particularly criti...Show More
Analysis of the Uncertainty of EIS Battery Data Fitting to an Equivalent Circuit Model
Francesco Santoni;Alessio De Angelis;Antonio Moschitta;Paolo Carbone
2021 IEEE 6th International Forum on Research and Technology for Society and Industry (RTSI)
Year: 2021 | Conference Paper |
Cited by: Papers (7)
In this work an analysis of the uncertainty on electrochemical impedance spectroscopy (EIS) of batteries is presented. Four-wire impedance measurements are performed by using a low-complexity and low-cost approach. EIS data are fitted to an equivalent circuit model through a non-linear least-square regression algorithm. Two equivalent circuit models, with 6 and 9 parameters respectively, are scrut...Show More
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