Gel polymer electrolyte (GPE) was prepared using polyurethane acrylate as polymer host and its performance was evaluated. LiCoO2/GPE/graphite cells were prepared and their electrochemical performance as a function of discharge currents and temperatures was evaluated. The precursor containing a 5 vol % curable mixture had a viscosity of 4.5 mPa s. The ionic conductivity of the GPE at 20 degreesC was about 4.5 x 10(-3) S cm(-1). The GPE was stable electrochemically up to a potential of 4.8 V vs Li/Li+. LiCoO2/GPE/graphite cells showed a good high rate and low-temperature performance. The discharge capacity of the cell was stable with charge-discharge cycling.