Accurate on board State of Health (SOH) estimation is a key Battery Management System (BMS) function to provide optimal management of the battery system under control. In this regard, this paper presents an extensive study of the degradation mechanism of NMC/Graphite cells based on the study of both incremental capacity (IC) and differential voltage (DV) curves. Moreover, based on the obtained IC curves, a linear relationship was identified between capacity and IC peak intensity for both calendar and cycling ageing. This novel characteristic allows to estimate and even to predict the SOH of NMC/graphite cells.
Original languageEnglish
Title of host publicationSOH estimation and prediction for NMC cells based on degradation mechanism detection
Place of PublicationMontréal
PublisherIEEE
Pages1-6
Number of pages6
DOIs
Publication statusPublished - 19 Oct 2015
EventVehicle Power and Propulsion Conference 2015 - Montreal, Montreal, Canada
Duration: 19 Oct 201521 Oct 2015

Conference

ConferenceVehicle Power and Propulsion Conference 2015
CountryCanada
CityMontreal
Period19/10/1521/10/15

    Research areas

  • Degradation mechanism detection, IC and DC curves, NMC/Graphite cell, On line SOH estimation, SOH prediction

ID: 25418471