In a prismatic secondary battery, an internal negative electrode terminal is electrically connected to a collector through through-holes formed in a sealing plate, a gasket, and an insulating member in a manner electrically insulated from the sealing plate. A work tool is supported by the frame, and a drive mechanism is adapted to rotate the work tool and at least one of or tracks. The pipe separator constitutes a continuation of a supply pipe for supplying the fluid to be separated and extends partially into the container. Making a check in the evaluation unit to determine whether there is a mathematical interrelationship between the control value and the associated position value. Individual bristle tufts, having a fused end and a rounded or non-rounded bristle end, are transferred from a movable gripper to the tuft carrier by direct mechanical insertion.