b'TALENT PIPELINE: PUBLICATION:Caitlin Hanson, student Fang, Z., M. P. Confer, Y. Wang, Q. Wang, M. R. Kunz, E. J. Dufek, B. Liaw, T. M. Klein, at University of Alabama D. A. Dixon, and R. Fushimi, Formation of surface impurities on lithium-nickel-Matthew Confer, student manganese-cobalt oxides in the presence of CO2 and H2O, Journal of the American at University of Alabama Chemical Society 143(27) (2021) 1026110274.PRESENTATIONS:Fang, Z., et al., Formation of surface impurities on Ni-rich NMC cathode materials due to CO2 and H2O, International Chemical Congress of Pacific Basin Societies 2021, Virtual, Dec. 1621, 2021.Fang, Z., et al., Formation of surface impurities on Ni-Rich NMC cathode materials due to CO2 and H2O, Transient Kinetics Seminar 2021, Virtual, Apr. 2628, 2021.Fang, Z., et al., Insight into the carbonate formation of Ni-Rich NMC cathode materials with CO2, AIChE Annual Meeting 2020, Virtual, Nov. 1620, 2020.Surface impurities involving parasitic reactions and gas evolution contribute to the degradation of high nickel content NMC cathode materials. The TAP transient kinetic technique, density functional theory, and infrared spectroscopy were used to study the formation of surface impurities on varying nickel content NMC materials in the presence of CO2 and water. The composition of surface impurities formed in ambient air exposure was found to be dependent on water concentration and the percentage of different crystal planes. These results indicating variable surface reactivity point to a strategy to mitigate battery performance degradation through precise control of the dominant surfaces in NMC materials.89'