Publication: Fast charger for Li-ion batteries based on battery temperature
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Date
2014
Authors
Hadi A.
Said I.
Mansor M.
Hussain H.
Journal Title
Journal ISSN
Volume Title
Publisher
Institution of Engineering and Technology
Abstract
A fuzzy controlled fast charger for Lithium Ion (Li-ion) batteries based on battery temperature is investigated and simulated by using MATLAB/Simulink. The main objective of this study is to control temperature rise during fast charging. A fuzzy control system is applied to a DC-DC converter that functions as a battery charger. During the charging process, battery temperature and battery state-ofcharge (SOC) were used as controller input variables and charging current as output variable. The battery is charged at 3C charging rate from 0% to 80% SOC. The simulation result is compared with the Constant-Current Constant-Voltage (CC-CV) charging algorithm and analysed. According to the simulation result, the proposed charger is capable of charging li-ion battery with reduced rate of temperature rise.