NOVELTY - The apparatus (30) has the pressure sensors for positive and negative electrodes (47,57) that are provided in the adsorption apparatuses for positive and negative electrodes (41,51) to detect a load added to a laminated structure (23) and laminate the positive and negative electrodes (14,15) on the structure when the cylinders for positive and negative electrodes (44,54) are dropped. An optimal load is added to structure based on curvature of structure. A control apparatus (60) stops fall of cylinders when detected load reaches an optimal load, or cylinders are raised.    USE - Apparatus for laminating electrode in secondary battery such as lithium ion battery mounted for supplying power to electric motor of vehicle such as electric vehicle (EV) and plug in hybrid vehicle (PHV).    ADVANTAGE - The control apparatus that stops fall of cylinders for positive and negative electrodes when load detected by pressure sensors for positive and negative electrodes reaches optimal load, or the cylinders for positive and negative electrodes are raised so that the electrode is laminated in the state of adding the optimal load to the laminated structure when the optimal load is set according to the quantity and the presence or absence of curvature of laminated structure and the detected load reaches the optimal load without adding the load bigger than the optimal load to laminated structure by stopping the movement of the electrode toward laminated structure so as to suppress the time of lamination of electrode by reducing the optimal load so that the curvature of a laminated structure is large than the electrode stuffed into laminated structure and the curvature of laminated structure is eliminated. Thus, the production of repulsive force of curvature, and moving to the direction where the electrode is provided along the surface of laminated structure with the repulsive force is suppressed after laminating the electrode while suppressing the curvature of laminated structure.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing electrode assembly.    DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of the apparatus for laminating electrode. (Drawing includes non-English language text)    Positive and negative electrodes (14,15)    Laminated structure (23)    Apparatus for laminating electrode (30)    Adsorption apparatuses for positive and negative electrodes (41,51)    Cylinders for positive and negative electrodes (44,54)    Pressure sensors for positive and negative electrodes (47,57)    Control apparatus (60)