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Lithium-ion batteries are at the forefront of energy storage technology due to its high energy density and durability; they are however expensive and must be operated within certain limits to prevent damaging them. Thus, there is a need for improved condition monitoring to increase its life expectancy and performance. In this work, Electrochemical Impedance spectroscopy (EIS) is implemented using...
This paper presents a fast cost-effective technique for the measurement of battery impedance online in an application such as an electric or hybrid vehicle. Impedance measurements on lithium-ion batteries between 1 Hz and 2 kHz give information about the electrochemical reactions within a cell, which relates to the state of charge (SOC), internal temperature, and state of health (SOH). We concentrate...
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