![]() zip file including Microsoft Excel Worksheet files for each experiment (cell chemistry type and sample, discharge rate and reference temperature).Į. Latitude and longitude for collected samples/data: Institution: Stanford Energy Control Laboratory, Energy Resources Engineering Department, Stanford University. The ambient temperature is controlled by the user via the thermal chamber. The type-T thermocouples are placed at the center location and measure the battery skin temperature. Once the battery is fully charged (after the CC-CV protocol), a galvanostatic discharge profile is applied until the voltage cutoff limit is reached (2.5 V for NCA and NMC, 2 V for LFP chemistry). The Arbin system supplies the user-defined current to the battery and measures voltage and surface temperature responses. Raw data of battery voltage, current and surface temperature.Įach battery is firstly fully charged through CC-CV protocol, then subjected to galvanostatic discharge at various controlled temperatures (5 ☌, 25 ☌ and 35 ☌) and discharging rates:Ĭ/20, 1C, 2C, 3C, 5C, 10C, 15C, 20C for LFP.Īccording to manufacturer specification, the Arbin Instruments LBT21024 guarantees a control accuracy < ± 0.02%. A comprehensive analysis of the data is found in [ Voltage, current and cell surface temperature are measured on each cell and for each experiment to characterize the cells in terms of discharge capacity, discharge efficiency, thermal robustness, specific energy and specific power. The input current profiles are configured via the MITS Pro-software, and transmitted through the TCP/IP connection to the Arbin measurement system and the Arbin LBT21024. The IncuMax IC-500R thermal chamber provides the reference temperature to the cell. The discharge is performed under controlled temperature conditions, namely 5 ☌, 25 ☌ and 35 ☌, and subjecting the battery cells to galvanostatic discharge rates ranging from C/20 to 5C, for NCA and NMC, and from C/20 to 20C, for LFP chemistry. The experiments consist in fully discharging the cells from 100% state-of-charge until the cell cutoff discharge voltage. In this study, six cell samples were tested for each chemistry. They own the same anode composition, graphite-based, and different cathode chemistry: lithium-nickel-cobalt aluminum-oxide (NCA), lithium-nickel-manganese-cobalt-oxide (NMC) and lithium-iron-phosphate (LFP), respectively. In this paper, we report data from lithium battery cells from: Panasonic NCR-18650B (3350 mAh), LG Chem INR21700-M50 (4850 mAh) and A123 Systems ANR26650m1-B (2500 mAh). ![]()
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