NOVELTY - A stacked-type secondary battery comprises battery cell The battery cell is formed by stacking full cells with structure of cathode/separator/anode or bicells with structure of cathode(anode)/separator/anode(cathode)/separator/cathode(anode) as a unit electrode assembly. A cathode active material and/or anode active material in at least two unit electrode assemblies are configured to have different composition to induced voltage difference.    USE - The stacked-type secondary battery is useful as energy source for mobile equipment.    ADVANTAGE - The battery does not suffers various problems, e.g. separation of electrode active materials from electrodes and poor spatial utilization and efficiency upon its application to prismatic or pouch type battery. The battery is capable of providing voltages from one battery without modification of structure modification of structure in conventional secondary battery.    DETAILED DESCRIPTION - A stacked-type secondary battery comprises battery cell The battery cell is formed by stacking full cells with structure of cathode/separator/anode or bicells with structure of cathode(anode)/separator/anode(cathode)/separator/cathode(anode) as a unit electrode assembly. A cathode active material and/or anode active material in at least two unit electrode assemblies are configured to have different composition to induced voltage difference and separate electrode terminals are installed in battery case according to the voltage difference to simultaneously provide at least two voltages by single battery. The battery comprises battery cell made of two full cells having different composition of active material. The battery comprises battery cell made of mixture of two C-type/A-type bicells with different composition of active material. The voltage difference is set at 3.35-3.95 V. The battery is lithium secondary battery. The cathode active materials of lithium secondary battery are active materials with potential difference of 3.4-4 V relative to lithium. The anode active materials of lithium secondary battery are active materials with potential difference of 0-1.6 V relative to lithium. Upon using two different unit electrode assemblies and the cathode and anode terminals of the first unit electrode assembly are installed on the top of the battery case. The cathode and anode terminals of second unit electrode assembly are installed on the bottom of the battery case. The anode and cathode terminals of third and fourth unit electrode assemblies are additionally installed on both lateral sides of the battery case.    DESCRIPTION OF DRAWING(S) - The figure shows schematic view of battery cell made of two full cells with different composition of active materials.