For producing dentures, a new method and a device render it possible to evaluate and shape movements generated by the individual jaw joints of the patient such that work with appropriate articulators becomes possible, which employ the individual jaw joints as articulation joints and thus carry out the identical movements. The invention is described with reference to producing dye solar cells. SolutionThe positive electrode active material for lithium secondary batteries according to the present invention includes a lithium-transition metal composite oxide containing from 0. Means are present which enable the monitoring instrument to detect the aircraft and to follow the movement of the aircraft. All three units are built with the same basic elements, plate and spindle.