The GITT procedure consists of a series of current pulses, each followed by a relaxation time, in which no current passes through the cell. The current is positive during charge and negative during discharge.
Continue reading “Galvanostatic Intermittent Titration Technique (GITT) For Batteries”Category: Tests
Cycling Test For Batteries
The charge–discharge cycling performance was investigated using a multichannel potentio-, galvanostat (TOSCAT-3100, TOYO system) in a temperature-controlled chamber.
Continue reading “Cycling Test For Batteries”Coulombic Efficiency Measurements for Batteries
Coulombic efficiency, CE, is the ratio of discharge capacity over charge capacity of a specific electrode in a cell, as shown in the following equation[1].
Continue reading “Coulombic Efficiency Measurements for Batteries”Electrochemical Impedance Spectroscopy For Batteries
The impedance of the pouch-type full cell can be measured by electrochemical impedance spectroscopy, e.g. using an AutoLab modular potentiostat/galvanostat (Metrohm AG) over a 1 MHz to 0.01 Hz frequency range with an amplitude of 10 mV.
Continue reading “Electrochemical Impedance Spectroscopy For Batteries”Cyclic Voltametric energy level Vs Fermi Level
This post contains the link between Fermi level and CV energy levels.
Continue reading “Cyclic Voltametric energy level Vs Fermi Level”Cyclic Voltametric Measurement
The setup of cyclic voltametric measurement is as the following:
Continue reading “Cyclic Voltametric Measurement “Determine the crystalline phases of PVDF film by FTIR
Poly (vinylidene fluoride), PVDF, has different crystalline phases, such as alfa, beta, gamma, delta, epsilon, depending on film processing methods. Among them, alfa, beta, and gamma are the major phases, particularly the beta phase which determines PVDF’s pyro-, piezo-, and ferroelectric properties.
Continue reading “Determine the crystalline phases of PVDF film by FTIR”Thermal conductivity tests comparison
The following is the comparison among four major thermal conductivity measurements.
Continue reading “Thermal conductivity tests comparison”Vibrating sample magnetometer
Vibrating sample magnetometer is a good tool to investigate materials’ magnetic properties.
Continue reading “Vibrating sample magnetometer”Photo elasticity based stress analysis
Mechanic deformation can lead to the optical property change in an optical media, which is called photo elasticity. Therefore, this principle is commonly adopted to investigate the stress distribution in a material.
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