DOAJ Open Access 2025

Incremental Capacity-Based Variable Capacitor Battery Model for Effective Description of Charge and Discharge Behavior

Ngoc-Thao Pham Sungoh Kwon Sung-Jin Choi

Abstrak

Determining charge and discharge behavior is essential for optimizing charging strategies and evaluating balancing algorithms in battery energy storage systems and electric vehicles. Conventionally, a sequence of circuit simulations or tedious hardware tests is required to evaluate the performance of the balancing algorithm. To mitigate these problems, this paper proposes a variable capacitor model that can be easily built from the incremental capacity curve. This model provides a direct and insightful R-C time constant method for the charge/discharge time calculation. After validating the model accuracy by experimental results based on the cylindrical lithium-ion cell test, a switched-capacitor active balancing and a passive cell balancing circuit are implemented to further verify the effectiveness of the proposed model in calculating the cell balancing time within 2% error.

Topik & Kata Kunci

Production of electric energy or power. Powerplants. Central stations Industrial electrochemistry

Penulis (3)

Ngoc-Thao Pham

Sungoh Kwon

Sung-Jin Choi

Format Sitasi

APA MLA BibTeX

Pham, N., Kwon, S., Choi, S. (2025). Incremental Capacity-Based Variable Capacitor Battery Model for Effective Description of Charge and Discharge Behavior. https://doi.org/10.3390/batteries11080300

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Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.3390/batteries11080300
Akses: Open Access ✓