20.500.12556/RUL-171175 PyBEP an open-source tool for electrode potential determination from battery ocv measurements This paper introduces PyBEP, a Python-based tool for the automated and optimized selection of open-circuit potential (OCP) curves and calculation of stoichiometric cycling ranges for lithium-ion battery electrodes based on open-circuit voltage (OCV) measurements. Thereby, it overcomes key challenges in traditional approaches, which are often time-intensive and susceptible to errors due to manual curve digitization, data inconsistency, and coding complexities. The originality of PyBEP arises from the systematic integration of automated electrode chemistry identification, quality-controlled database usage, refinement of the results using incremental capacity methodology, and simultaneous optimization of multiple electrode parameters. The PyBEP database leverages high-quality, curated OCP data and employs differential evolution optimization for precise OCP determination. Validation against literature data and experimental results confirms the robustness and accuracy of PyBEP, consistently achieving precision of 10 mV or better. PyBEP also offers features like electrode chemical composition identification and quality enhancement of measurement data, further extending the battery modeling functionalities without the need for battery disassembly. PyBEP is open-source and accessible on GitHub, providing a streamlined, accurate resource for the battery research community, making PyBEP a unique and directly applicable toolkit for electrochemical researchers and engineers. lithium-ion batteries open circuit voltage electrode potentials electrode stoichiometric ranges open source python package true false true Angleški jezik Ni določen Članek v reviji 2025-08-18 08:49:36 2025-08-18 08:49:44 2025-08-19 04:11:35 0000-00-00 00:00:00 2025 0 0 15 str. iss. 8, art. 295 Vol. 11 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.35/.36 2313-0105 10.3390/batteries11080295 245728259 Pisek_Katrasnik_Zelic_PyBEP.pdf Pisek_Katrasnik_Zelic_PyBEP.pdf 1 8B1A0B055F59BAC0330DFF6D21FEC6A3 a739ea03d10e71d64cd5b28b8f9f01de3a44bb1f9718d592d37e7503aaf7e23b fcd74a2d-7bff-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=214224 https://www.mdpi.com/2313-0105/11/8/295 1 6eea2295-7bff-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=214223 Fakulteta za strojništvo 0 0 0