Enhancing Lithium Titanate Battery Charging: Investigating the Benefits of Open-Circuit Voltage Feedback
Pavković D. Cipek M. Kvaternik K. Faiz N. Shambilova A.
August 2025Multidisciplinary Digital Publishing Institute (MDPI)
Energies
2025#18Issue 15
In applications where it is crucial that a battery is recharged from the partially discharged state in the minimum time, it is crucial to honor the technological constraints related to maximum safe battery terminal voltage and maximum continuous charging current prescribed by the battery cell manufacturer. To this end, this contribution outlines the design and comprehensive simulation analysis of an adaptive battery charging system relying on battery open-circuit voltage estimation in real time. A pseudo-random binary sequence test signal and model reference adaptive system are used for the estimation of lithium titanate battery cell electrical circuit model parameters, with the design methodology based on the Lyapunov stability criterion. The proposed adaptive charger is assessed against the conventional constant-current/constant-voltage charging system. The effectiveness of the real-time parameter estimator, along with both the adaptive and traditional charging systems for the lithium titanate battery cell, is validated through simulations and experiments on a dedicated battery test bench.
equivalent circuit model , lithium titanate battery cell , Lyapunov stability , open-circuit voltage estimator , system reference adaptive model
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Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, 10000, Croatia
AVL-AST d.o.o., Zagreb, 10000, Croatia
Faculty of Information Technologies, Telecommunications and Automatized Systems, M. Auezov South Kazakhstan University, Shymkent, 160012, Kazakhstan
Faculty of Mechanical Engineering and Naval Architecture
AVL-AST d.o.o.
Faculty of Information Technologies
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026