Effect of sintering temperature on (K0.465Na0.465Li0.07)(Nb0.95Sb0.05)O-3 lead-free ceramics was systematically studied. The porosity inside the grains was observed, which acts as a pinning effect and leads to the increase of coercive field. Both high and low sintering temperatures (T-s) would lead to the formation of secondary phases, and the transition temperatures were modified by controlling the amount of secondary phases. At appropriate T-s, the piezoelectric activity was greatly improved with orthorhombic-tetragonal transition temperature (TO-T) near room temperature and low porosity in the grains. Effect of T-s on temperature stability (TS) was also studied, and no definite relationship between TS and TO-T is observed. The (K0.465Na0.465Li0.07)(Nb0.95Sb0.05)O-3 ceramics with T-s = 1030 degrees C possess enhanced piezoelectric properties together with good temperature stability. (C) 2011 Elsevier B.V. All rights reserved.