LAYER BUILT BATTERY AND ITS MANUFACTURE

PURPOSE:To obtain a layer built battery and its manufacturing method which can reduce the process number of the side conductor forming process and the cutting process of electrode material as few as possible, by securing a wide opposing area between positive electrodes and negative electrodes, or making them in a multilayer so as to make a layer built battery to accomplish a high energy. CONSTITUTION:At least one side of positive electrodes 1 and negative electrodes 2 in a layer form are arranged in two or more layers, and both electrodes and electrolytes or separators including electrolyte are superposed to compose a layer body. At least the neighboring electrodes in one layering direction, of the positive and the negative electrodes 1 and 2, are connected each other through collectors 1a and 2a in the layer body. Positive electrode sheets, negative electrode sheets, or sheets on which both electrodes and the electrolyte are layered are bent each other and superposed, or short-sized sheets are placed between the superposed sheets, and they are superposed and integrated to manufacture a layer built battery.