Incremental Capacity Analysis (ICA) Via Galvanostatic Intermittent Titration Technique (GITT) Data For Battery Degradation Study

Abstract

Incremental capacity analysis (ICA) and Galvanostatic Intermittent Titration Technique (GITT) are commonly used tools of electrical characterisation of degradation of Li-ion batteries. Disadvantage of these methods is their significant time consumption since both of these methods are based on charging/discharging by very low currents (e.g. C/20). In this contribution we propose a novel approach of performing ICA analysis via utilisation of GITT data in order to significantly decrease time of the measurements and/or include ICA analysis into GITT measurements, which would not be otherwise performed.