2012 Volume 80 Issue 8 Pages 561-565
In our previous paper (J. Power Sources, 183, 344 (2008)), we proposed the application of a pre-cycling treatment to a Li-rich solid-solution layered cathode (xLi2MnO3·yLi[Ni0.5Mn0.5]O2·zLi[Co1/3Ni1/3Mn1/3]O2 where (x + y + z = 1)) before the charge/discharge cycling process to obtain enhanced capacities stable above 250 mAh g−1. The aim of the present work is to reduce the duration of this pre-cycling process. The cycling performance dependence of Li1−α[Ni0.18Li0.20+αCo0.03Mn0.58]O2 on the pre-cycling processing parameters, such as the number of cycles, voltage limits, and current density was explored. The processing conditions were then optimized, which ultimately reduced the pre-cycling treatment time from one week to 6.5 h.