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Data Description:
A set of four Li-ion batteries (# 25, 26, 27 and 28) were run through 3 different operational profiles (charge, discharge and impedance) at room temperature (24 deg C). Charging was carried out in a constant current (CC) mode at 1.5A until the battery voltage reached 4.2V and then continued in a constant voltage (CV) mode until the charge current dropped to 20mA. Discharge was carried out using a 0.05Hz square wave loading profile of 4A amplitude and 50% duty cycle until the battery voltage fell to 2.0V, 2.2V, 2.5V and 2.7V for batteries 25, 26, 27 and 28 respectively. Impedance measurement was carried out through an electrochemical impedance spectroscopy (EIS) frequency sweep from 0.1Hz to 5kHz.

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2Â¥: Originally posted by ywuweizi at 2017-01-18 10:08:51
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