PV Array Based Ultra-Fast Charging Strategy for Li-Ion Battery Considering Temperature Rise

Solar energy can be captured by Photovoltaic (PV) array which can be used for charging Lithium-Ion (Li-Ion) batteries. This paper is concerned with the study of ultra-fast charging of a Li-Ion battery. Pulse charging technique provides this charging scheme in this case and the result is compared with the Constant Current (CC) charging method. The charging time of the selected battery is decreased in a condition that the temperature rise of it is measurable. Thereby, 7.4V and 5.4Ah Li-Ion battery is chosen and simulated by adopting two charging methods mentioned above. Full charging time by the proposed technique is 2558 seconds and 2575 seconds for the CC method with battery temperature of about 38.54°C and 45.03°C respectively. Hence, around 17 seconds time saving is found with 6.49°C less temperature rise.