Characterization and Control of Irreversible Reaction in Li-Rich Cathode during the Initial Charge Process.

Li-rich layered oxide has been known to possess high specific capacity beyond the theoretical value from both charge compensation in transition metal and oxygen in the redox reaction. Although it could achieve higher reversible capacity due to the oxygen anion participating in electrochemical reaction, however, its use in energy storage systems has been limited. The reason is the irreversible oxygen reaction that occurs during the initial charge cycle, resulting in structural instability due to oxygen evolution and phase transition.

Li[Li0.2Ni 0.16Mn 0.56Co 0.08]O 2 Nanoparticle/Carbon Composite Using Polydopamine Binding Agent for Enhanced Electrochemical Performance.

Li[Li0.2Ni0.16Mn0.