All cells in this study were harvested from a newly purchased 2019 Tesla Model 3. These 21700 cylindrical cells were manufactured by Panasonic and tested to have a low-rate capacity of 4.84Ah. The positive electrode is NCA (approximately 90-5-5 composition) and the negative electrode is a graphite-SiO x blend. Cells were cycled in CSZ ZP-16-2-H/AC environmental chambers set to 25°C, and fitted with 4-point contact cylindrical cell fixtures from Korea Thermo-Tech Co. Ltd. assembled by SpectraPower. The cells were cycled using two 96 channel Maccor Series 4000 battery cyclers.