Journal
ELECTROCHEMISTRY
Volume 80, Issue 8, Pages 561-565Publisher
ELECTROCHEMICAL SOC JAPAN
DOI: 10.5796/electrochemistry.80.561
Keywords
Li-rich Solid-Solution Layered Cathode; Lithium-Ion Battery; Electrochemical Pre-Treatment
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Funding
- Japanese New Energy and Industrial Technology Development Organization (NEDO)
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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 (xLi(2)MnO(3)center dot yLi[Ni0.5Mn0.5]O-2 center dot zLi[Co1/3Ni1/3Mn1/3]O-2 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-alpha[Ni0.18Li0.20+alpha Co0.03Mn0.58]O-2 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. (C) The Electrochemical Society of Japan, All rights reserved.
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