NOVELTY - A battery unit comprises cathode plate having cathode collector and cathode active material layer; cathode lead (26); anode plate having anode collector and anode active material layer; anode lead (27); separator interposed between cathode and anode plates, thus insulating plates from each other; and insulating tape formed on lead(s), thus preventing short circuit between cathode lead and anode plate or between anode lead and cathode plate.    USE - For lithium polymer battery (claimed).    ADVANTAGE - The invention has improved safety measures to prevent short circuit, in which electrical contact between electrode plates and electrode leads, that have opposite polarities with respect to each other is blocked.    DETAILED DESCRIPTION - A battery unit comprises a cathode plate having a cathode collector and a cathode active material layer coated on at least one surface of the cathode collector; a cathode lead electrically connected to the cathode collector; an anode plate having an anode collector and an anode active material layer coated on at least one surface of the anode collector; an anode lead electrically connected to the anode collector; a separator interposed between the cathode plate and the anode plate, thus insulating the plates from each other; and an insulating tape (210) formed on at least one of the leads, thus preventing a short circuit between the cathode lead and the anode plate or between the anode lead and the cathode plate.    INDEPENDENT CLAIMS are also included for:    (a) a lithium polymer battery (20) comprising a battery unit; and a case (22) accommodating the battery unit in which the cathode plate, the separator and the anode plate are sequentially and repeatedly stacked upon one another; and    (b) a method for manufacturing a lithium polymer battery comprising mixing source materials for an electrode active material layer; coating at least one surface of a collector substrate with the mixture of the source material in a pattern corresponding to the electrode active material layer; cutting the collector substrate with the pattern of the electrode active material layer into individual collectors; pre-attaching an insulating tape to an electrode lead extending from each of the collectors; thermally fusing the insulating tape to the electrode lead; and completing formation of an electrode plate including the collector which has the electrode active material layer and the electrode lead which extends from the collector and to which the insulating tape is fused.    DESCRIPTION OF DRAWING(S) - The figure is an exploded perspective view of a lithium polymer battery.    Lithium polymer battery (20)    Case (22)    Cathode lead (26)    Anode lead (27)    Insulating tape (210)