Characterization of a Practical-Based Ohmic Series Resistance Model under Life-Cycle Changes for a Lithium-Ion Battery

Natthawuth Somakettarin and Achara Pichetjamroen
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Natthawuth Somakettarin: Department of Electrical Engineering, Rajamangala University of Technology Thanyaburi, 39 Klongluang, Patumthani 12110, Thailand
Achara Pichetjamroen: Department of Electrical Engineering, Faculty of Engineering, Kasetsart University, 50 Chatuchak, Bangkok 10900, Thailand

Energies, 2019, vol. 12, issue 20, 1-11

Abstract: Understanding battery characteristic behaviors is indispensable in designing and managing large-scale battery-based energy storage systems in high-power applications. This paper presents a practical-based characterization method to model the ohmic series resistance of lithium-ion batteries under life-cycle consideration. Aging cells were prepared in a controlled environment, and the testing information was automatically characterized using a developed computer-based battery test system. An experimental methodology based on the cycling of pulse tests is applied for modeling the ohmic series resistance. Several aspects of the testing parameters during the cycling operations, such as the characteristic changes of the ohmic series resistance, amplitudes of the periodic test current, cell capacity, state of charge, and the rate of change of the resistance increment, are also investigated and analyzed so as to fulfill the resistance model. The accuracy of the proposed model is verified by comparing the testing information, showing a satisfactory result.

Keywords: lithium-ion; battery modeling; characterization method; ohmic series resistance; battery test system; life cycle (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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