Lithium-ion batteries Batteries - Li-ion Capacity retention Cathode active material Cathode active materials Cathodes Charge discharge cycling Cutoff voltage Cycling performance Dry air Effect of atmosphere during heating Electric discharges Electrodes Electrolytes Heating Impurities Impurity phasis Inductively coupled plasma Large volumes Li-ion cells Lithium Lithium compounds Lithium loss during heating Manganese Manganese compounds Microcracks Mn content Nickel Nickel compounds Optical emission spectroscopy