This study proposes Lithium-ion battery aging correction state-of-charge (SOC) estimation techniques. Although the battery is aging, the SOC error estimation system maintains the setting range using a low-cost 8 bit micro-controller. The proposed method can track and correct the open-circuit voltage against capacity in the battery management system by comparing the capacity error with the coulomb counting and look-up table methods. The experimental results verify that the SOC estimation error is still lower than 3.5% after 1000 cycles. The SOC estimation verification platform verifies the Sanyo UR18650 W lithium battery. After 300 accelerated aging cycle charge–discharge tests, the test results showed that the SOC prediction precision for an aged battery is as high as 2.67%.


    Access

    Access via TIB


    Export, share and cite



    State‐of‐charge estimation with aging effect and correction for lithium‐ion battery

    Cheng, Ming‐Wang / Lee, Yuang‐Shung / Liu, Min et al. | Wiley | 2015

    Free access

    Lithium-ion battery state of charge estimation using improved coulomb counting method with adaptive error correction

    Wu, King Hang / Seyedmahmoudian, Mehdi / Mekhilef, Saad et al. | SAGE Publications | 2025


    Luenberger Observer for Lithium Battery State-of-Charge Estimation

    Barsali, Stefano / Ceraolo, Massimo / Li, Jiajing et al. | British Library Conference Proceedings | 2020


    Lithium ion battery charge state estimation and equalization control method

    QIAO JIAWEI / CAO JIANWEN / BAO WENLIANG et al. | European Patent Office | 2024

    Free access

    STATIC STATE OF CHARGE CORRECTION TECHNIQUES FOR LITHIUM IRON PHOSPHATE BATTERY SYSTEMS

    LU ZHONGJUN / ZHAO JINGJING / YU WENFENG et al. | European Patent Office | 2025

    Free access