Electrochemical performances of lithium-ion polymer battery using LiNi1/3Co1/3Mn1/3O2 as cathode materials

In this work, a gel polymer electrolyte (GPE) was prepared using polyoxyalkylene glycol acrylate (POAGA) as a macromonomer. LiNi1/3Mn1/3Co1/3O2/GPE/graphite cells were prepared and their electrochemical properties were evaluated at various current densities and temperatures. The ionic conductivity of the GPE was more than 6.2 x 10(-3) S cm(-1) at room temperature. The GPE had good electrochemical stability up to 5.0 V versus Li/Li+. POAGA-based cells were showed good electrochemical performances such as rate capability, low-temperature performance, and cycleability. No leakage of the electrolyte or an explosion was observed at the overcharge test. (c) 2006 Elsevier B.V. All rights reserved.