Wondering how to make a Ragone plot, below is a Universal Ragone plot, with its data. Ragone plot is a plot that compares various energy storage devices in terms of energy density and power density. The above Ragone plot can be downloaded as image and used as it is. You can add your research […]
The operating voltage of an electrode material is not always easily determined from the discharge curve. It is best determined from a cyclic voltammogram (CV) or a dQ/dV plot in which all plateaus are tranformed into peaks. As shown in the CV below, NMC operates at ~3.7 V vs Li/Li+.
How to calculate the theoretical capacity of battery electrode materials The theoretical capacity of a battery electrode material can be estimated using the relation: xFM where F is the Faraday constant, x is the number of faradays involved in the reaction, and M is the molar mass of the material. Hence, according to Eq.1, the […]
State-of-the-art cathode materials for Lithium-ion batteries i) 1st generation cathode: LCO The first cathode material developed for Li-ion batteries is LiCoO2 (abbreviated as LCO). It has a layered (hexagonal) structure with space group R-3M. The structure consisting of Li-O-Co-O-Li layers along the c axis is shown in Figure 1. Both Co and Li occupy alternating octahedral […]