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How to automate experiments and build complex protocols: An introduction to the M470 sequencer
Automating experiments, and writing complex protocols with the M470 sequencer.
ZFit: How to have confidence in results using std err.?
This article explains the significance of the std err. parameter in ZFit, the EIS fitting tool in EC-Lab.
Supercapacitors and insertion batteries: what are the differences?
This article describes the main differences between supercaps and batteries.
ZSim and ZFit as learning tools. Part V – How to choose the proper equivalent circuit?
This article gives tips, tricks and general guidance for choosing the proper equivalent circuit.
ZSim and ZFit as learning tools. Part VI – Equivalent circuits distinguishability
Explain the distinguishability properties of equivalent circuits
ZSim and ZFit as learning tools. Part VII – Equivalent circuits identifiability
Explain the identifiability and unidentifiability properties of equivalent circuits
What is a potentiostat and its use in Science & Industry (Electrochemistry Basics Series)
What is a potentiostat? An article detailing every aspect of this versatile electrochemical multitool. Covers Potentiostat functionality and operation, the history of the potentiostat, uses and applications and the future of the potentiostat
What is a Frequency Response Analyzer (FRA)?
What is a Frequency Response Analyzer, what is its principle? This article details key information about FRA.
Nernst, Pourbaix and self-discharge
Using the example of lead-acid batteries, the goal of this article is to provide a better understanding of Nernst law, how it can be used to construct Pourbaix diagrams, and how Pourbaix diagrams can in turn be used to explain self-discharge.
How do I choose between step mode and sweep mode?
Choosing step mode or sweep mode affects experiment quality and duration from Scanning Electrochemical Microscopy to Atomic Force Microscopy
The role of battery cyclers in science and industry, and key factors relevant to their design.
What should I know about battery testing equipment?
Battery science: Interactive glossary of terms
What does this battery term mean? A comprehensive, interactive glossary of terms used in battery science
What is CV? A comprehensive guide to Cyclic Voltammetry
A highly detailed article relating to Cyclic Voltammetry and associated EC-Lab techniques
FlexP + Water Cooling = More power (up to 800 A)!
How the FlexP boosters' unique design and proprietary technology faciliates measurements for EVs and high-power applications
Internal Resistance series. Part I: What is internal resistance in a battery?
What is internal resistance in a battery?
Internal Resistance series. Part II: How to determine the internal resistance of a battery
This second in a series of 3 articles will help you to understand internal resistance and how it can be measured.
Internal Resistance series. Part III: Which techniques should I use to investigate the internal resistance of a battery?
This article in BioLogic's Learning Center explains which techniques are applicable for the investigation of internal resistance in batteries
What is Electrochemical Impedance Spectroscopy (EIS)? Electrochemistry Basics Series
Electrochemical Impedance spectroscopy (EIS) is a powerful tool enabling the study of processes that occur at the interface of the electrode.
The Faraday Cage: What is it and how does it work?
What is a Faraday Cage. How does it work? The article looks at the use of the Faraday cage in electrochemistry.
Future proof your potentiostat with Premium range, self-install internal boosters.
The article explains how users can easily upgrade their Premium range potentiostat by installing boosters, thereby increasing the scope of the instrument.
Guidelines for proper Electrochemical Noise (EN) measurements
How to properly perform EN measurements with BioLogic products.
SECM101: What is Constant Distance (CD)-SECM?
Constant Distance (CD)-SECM is introduced in this BioLogic Learning Center article
Scanning Probe Electrochemistry: A glossary of terms
What do the different terms relating to local electrochemistry mean? This article gives a definitive list
Ensuring the quality of Electrochemical Impedance Spectroscopy measurements on high-power systems
The quality of EIS measurements on high-power systems is presented in this article.
Distribution of Relaxation Times (DRT): how to identify equivalent circuits efficiently
The Distribution of Relaxation Times (DRT) analysis (equivalent circuit identification tool) is introduced.
Key factors to consider when looking for a scanning electrochemical workstation.
Factors of interest when looking at a scanning electrochemical workstation are discussed.
SECM101: Introduction to the redox mediator
The Scanning Electrochemical Microscopy (SECM) redox mediator is introduced.
CVSim as a learning tool III: Linearity in EIS
Article describes how CVSim can be used to study the behaviour of a redox reaction during an Electrochemical Impedance Spectroscopy (EIS) measurements.
OSP101: Introduction to the Optical Surface Profiler technique
An introduction to the Optical Surface Profiler (OSP) technique
Which scanning probe electrochemistry technique?
The scanning probe electrochemistry techniques on the M470 are compared.
ZSim and ZFit as learning tools. Part IV – The effect of high frequency inductance.
High frequency inductance can strongly affect the shape of impedance graphs and need to be accounted for during data fitting.
ZSim and ZFit as learning tools. Part II – Why circle fitting is wrong?
We demonstrate why circle fitting should not be used to analyze impedance data using ZSim- part of EC-Lab, BioLogic's potentiostat control/analysis software
ZSim and ZFit as learning tools. Part III – How to detect an inductive behaviour at low frequencies
Does the Nyquist impedance diagram of the C1/R1/(R2+L2) circuit always have an inductive arc at low frequencies?
Not Negative. Not Positive. Negative AND Positive. Full Cell Control for Premium & Essential Instruments
The ability to fully understand the behavior of positive & negative electrodes gives battery researchers a holistic view of battery performance.
New webinar (BioLogic US): Does Mg2+ reversibly intercalate into transition metal oxides? Registration & Abstract
Details of the latest webinar in the Blue Box Webinar Series and registration links
Investigation of Structure-Electrochemistry Relationships in Novel Silicon Anodes for Lithium-ion Batteries (Webinar)
Part two of the BioLogic USA Blue Box Webinar Series: Structure-Electrochemistry Relationships in Novel Silicon Anodes for Lithium-ion Batteries
Multichannel & Single-channel potentiostats – what’s the difference? (Electrochemistry Basics Series)
An overview of the differences between single channel and multichannel potentiostat galvanostats
ZSim and ZFit as learning tools. Part I – Acidic corrosion
An overview of ZSim the powerful Electrochemical Impedance Spectroscopy (EIS) simulation tool available in EC-Lab®,
Battery states: State of charge (SoC), State of Health (SoH). Electrochemistry basics series.
Battery States (Charge and of Health) are defined and discussed in this article.
Investigating battery aging using Differential Capacity Analysis (DCA)
The importance of DCA for battery aging...
How to read battery cycling curves
An overview of how to read cycling curves and their relevance to battery performance/behavior
How to correct impedance measurements when using longer cables or a test fixture (Electrochemistry Basics Series)
Focus on your Device under Test. How to remove parasitic impedance due to extension cables or connection interfaces
The different current and voltage setpoint options in EC/BT-Lab®
This article presents the various options available in EC/BT-Lab® for potential and current setpoints.
How to avoid side reactions during battery charging/discharging?
How can we avoid unwanted reactions at the electrodes during battery charging/discharging?
Scanning probe electrochemistry for sustainable energy research
A short article and associated video relating to scanning probe electrochemistry and sustainable energy
How to use electrochemical impedance spectroscopy (EIS) accuracy contour plots
EIS accuracy contour plots must be used to interpret errors made during EIS measurements and identify the best frequencies possible for a given impedance range.
Checking and validating reference electrodes (Electrochemistry basics series)
The reference electrode is part of the 3-electrode setup. A bad reference electrode can impact negatively on measurements. In this article, we discuss the protocol necessary to check reference electrodes.
Investigation of impedance measurements using the Z Sim tool (Electrochemistry Basics Series)
To adjust the frequency range of your EIS experiment or just to see the shape of your model, Z Sim is available on both EC-Lab® and BT-Lab® software.
Nyquist plots: Why use the orthonormal scale?
This article illustrates why the orthonormal scale should be used for Nyquist impedance plots.
dc-SECM and the SECM150
The dc-SECM technique. Includes a link to a more detailed, downloadable document.
Rotating Ring Disk Electrode: an Introduction
The principles and main uses of the Rotating Ring Disk Electrode.
How do I customize my plots?
A suitable plot with the right variables allows you directly access the results and saves a great deal of time during the analysis. In this short article we show you how...
Create and save your own protocols
Learn how to save time by configuring full experiments from previous settings; including safety limits, advanced settings, cell characteristics and external device configuration.
Split electrochemical impedance spectroscopy (EIS) experiments into multiple sequences: save time without compromising quality
Reliable impedance measurements require the system under study to remain linear and stationary during the whole measurement sequence. This article describes the ideal configuration for studying unstable systems such as batteries or supercaps to save time while maintaining good measurement quality.
QCM: History and principles
The principles behind the QCM technique are described as well as an introduction to its history.
EIS and Battery Screening
Article describing how advanced EIS battery cyclers can play a multipurpose role in battery screening.
Anode vs Cathode: What’s the difference?
This article clarifies the differences between anodes cathodes and positive and negative electrodes in secondary batteries.
Why use Electrochemical Impedance Spectroscopy (EIS) for battery research?
Understand which information you can accurately obtain from your insertion material using Electrochemical Impedance Spectroscopy.
How to check and correct the time variance of your system under EIS measurements
Are you running EIS experiments on a corroding electrode or on a charging or discharging battery and obtaining unusual or strange data at low frequencies? You should check that the change of your system does not affect your EIS measurements. Here are a few tools available in EC-Lab® to help you deal with such situations.
How to make reliable Electrochemical Impedance Spectroscopy (EIS) measurements with your potentiostat or battery cycler
To be considered reliable, EIS measurements must be performed on a system that is linear, in a steady-state and time-invariant. Quality Indicators are made available to users of EC-Lab® to ensure that the system fulfills these requirements.
Scanning probe Electrochemistry & battery research
As demand for electric vehicles, portable electronics, and green energy storage grow, so too will the demand for better batteries. To improve on current battery technologies, researchers must intimately understand battery components
ZFit (impedance fitting) tutorials for potentiostats and battery cyclers
Series of tutorials about ZFit, BioLogic's impedance fitting tool
Coupling potentiostats & spectrometers for spectroelectrochemical measurements
One of the possibilities of characterizing intermediate species created during a redox process, is to couple a spectrometer with a potentiostat
Data of interest – work more efficiently.
Get the most out of your potentiostat/battery cycler : how EC/BT-Lab can help you work more efficiently as well as save valuable time.
Resolution, Precision, Accuracy, Temperature stability and Time base: The five to watch (Electrochemistry Basics Series)
The five characteristics that should be on every electrochemist’s radar
HPC: The importance of ultra-precision battery cyclers
As opposed to standard cycling techniques, High Precision Coulometry (HPC) measurements can provide a reliable estimation of battery lifetime quickly
No need to plan your future analysis… Go straight ahead
It is time to demystify a false truth. You really do not always need to add points in the record settings of BT-Lab® and EC-Lab® in order to obtain highly accurate measurements.
Modify on-the-Fly: Flexible potentiostat/battery cycler control
No need to stop the experiment with EC-Lab®’s “modify-on-the-fly” functionality
Why 4-point measurements?
A potentiostat / galvanostat is an instrument that can control both the current and the voltage imposed to a cell. For this purpose, Bio-Logic instruments require at least 4 cables: