State-of-health monitoring of lithium-ion batteries in electric vehicles by on-board internal resistance estimation

Online estimation of internal resistance

Online estimation of internal resistance and open-circuit voltage of lithium-ion batteries in electric vehicles

✍ Yi-Hsien Chiang; Wu-Yang Sean; Jia-Cheng Ke 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 840 KB

State-of-charge (SoC) and state-of-health (SoH) define the amount of charge and rated capacity loss of a battery, respectively. In order to determine these two measures, open-circuit voltage (OCV) and internal resistance of the battery are indispensable parameters that are obtained with difficulty t