(KR2000066879-A)   NOVELTY - A lithium secondary battery comprises positive electrode, negative electrode, separator between the positive and negative electrodes, and coating of polymer on second sides of each electrode. The separator is near to the first sides of the positive and negative electrodes. The coating of polymer is remote from the separator, and the coating having an elongation ratio of at least200%.    USE - For use in portable electronic apparatuses.    ADVANTAGE - The battery has improved structure to attain an excellent safety. It prevents internal short-circuiting. It includes a coating layer having an excellent elongation ratio on surface of positive and negative electrode plates, thus improving the battery safety.    DETAILED DESCRIPTION - A lithium secondary battery (20) comprises positive electrode (21), negative electrode (22), separator (23) between the positive and negative electrodes, and coating of polymer on second sides of each electrode. The positive electrode includes positive electrode current collector having two sides, and positive electrode sheet (24) including a positive electrode active material fixed to the first side of the positive electrode current collector. A negative electrode includes a negative electrode current collector having two sides, and negative electrode sheet (25) including a negative electrode active material fixed to first side of the negative electrode current collector. The separator is near to the first sides of the positive and negative electrodes. The coating of polymer is remote from the separator, and the coating has an elongation ratio of at least200%.    An INDEPENDENT CLAIM is also included for manufacturing a lithium secondary battery comprising fixing a positive electrode sheet to the first side of the positive electrode current collector and fixing the negative electrode sheet to the first side of the negative electrode current collector, and respectively rolling the positive electrode current collector with the positive electrode sheet and negative electrode current collective with the negative electrode sheet to form a positive electrode and a negative electrode. Coating of polymers is formed at the second sides of the positive and negative electrode current collectors. The positive and negative electrodes are immersed in a solvent to produce interstitial spaces in which an electrolyte is to be disposed. The positive and negative electrodes are dried and respective rolled to have a thickness. A separator is interposed between the positive and negative electrodes. The positive electrode, separator, and negative electrode are rolled together.    DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of the lithium secondary battery.    Lithium secondary battery (20)    Positive electrode (21)    Negative electrode (22)    Separator (23)    Positive electrode taps (24)    Negative electrode taps (25)    Electrode terminals (26, 27)