Nanophase LiCoO 2 was synthesized by solid state reaction with low heating temperature, i.e. the reactants Co(Ac) 2·4H 2O and LiOH·H 2O in the appropriate molar ratio(1∶1) were mixed and ground in agate mor...Nanophase LiCoO 2 was synthesized by solid state reaction with low heating temperature, i.e. the reactants Co(Ac) 2·4H 2O and LiOH·H 2O in the appropriate molar ratio(1∶1) were mixed and ground in agate mortar, then calcined. The samples obtained were characterized by XRD and IR methods. The phenomena during synthesizing are discussed by TG/TDA analysis, and the optimum temperature of heating was chosen. The BET and ICP results suggest that the sample has a large specific surface(54.29 m 2/g), a low quantity of impurity, thus it may be a good battery material. The nanophase LiCoO 2 samples produced have good cyclic performance and a higher working voltage plateau(3.9 V).展开更多
文摘Nanophase LiCoO 2 was synthesized by solid state reaction with low heating temperature, i.e. the reactants Co(Ac) 2·4H 2O and LiOH·H 2O in the appropriate molar ratio(1∶1) were mixed and ground in agate mortar, then calcined. The samples obtained were characterized by XRD and IR methods. The phenomena during synthesizing are discussed by TG/TDA analysis, and the optimum temperature of heating was chosen. The BET and ICP results suggest that the sample has a large specific surface(54.29 m 2/g), a low quantity of impurity, thus it may be a good battery material. The nanophase LiCoO 2 samples produced have good cyclic performance and a higher working voltage plateau(3.9 V).
