ZSW
Accurate determination of the Coulomb Efficiency (CE) is essential for reliable assessment of battery aging. In this paper, we present a highly accurate measurement system developed at ZSW that minimises errors caused by mechanical, electromagnetic and thermal interferences. By implementing strict cycling protocols, optimised shunt design and zero offset compensation, our method provides more accurate […]
P2-048
The designed standard test characterizes Li-ion cells plating behavior, revealing the dependency of plating on temperature and current. Panasonic cells exhibit greater plating than Sony cells under identical conditions, with reversible plating assessed via Differential Voltage Analysis (DVA) and irreversible plating determined by capacity differences before and after plating.
P3-019
In this study, we present a JMAK-based model to analyze lithium plating in lithium-ion batteries. The onset of plating is identified by a bell-shaped curve during the constant-voltage charging phase. By fitting the model to this curve, it analyzes plating quantity, growth rate, and dimensionality, providing key insights into plating morphology for different charging conditions. […]