Abstract
Gas evolution that resulted in the pressure elevation on LiNi1/3Mn1/3Co1/3O2 (NMC111) battery in case of a runaway reaction was discussed with the thermally explosive behaviors. The NMC111 cell and 2 series-connected (2S) NMC111 module both with 100% SoCs (state of charges) were examined the pressure rise rates in an open-circuit voltage (OCV) state using VSP2 adiabatic calorimetry. The charged NMC111 module underwent an extremely runaway reaction at elevated temperatures and caused a thermal explosion due to high potential energy inside the battery and interaction with the cell components. The surface temperature of the cell during the charge-discharge cycle was measured to compare with the difference in heat accumulation at 0.75, 1, 2 C-rates. Furthermore, the blasting pressure that propagated a thermal explosion for both single cell and 2S module were evaluated. The significant explosion potential increased with the electric potential. Moreover, the considerable quantities of gases eruption from the full-charged batteries can result in battery rupture and flames from a confined battery housing.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
