Patent Number: 6,251,537

Title: Secondary battery with sealing materials coated onto electrode tabs

Abstract: A secondary battery having an improved sealing structure between electrode tabs acting as terminals of the battery, and a dielectric package, which is capable of preventing leakage of an organic electrolyte. The secondary battery includes a battery body having a positive electrode, a negative electrode and a separator which are stacked, and electrode tabs for inducing current generated therein to the outside; a dielectric package having upper and lower dielectric packages, for enclosing the battery body by sealing edge portions of the upper and lower dielectric packages while the electrode tabs are partially exposed to the outside; and sealing materials including sidearms, coated on predetermined portions of the electrode tabs by a predetermined width, for preventing leakage of an organic liquid electrolyte while being interposed and fused between the edge portions of the upper and lower dielectric packages.

Inventors: Kim; Han-sung (Cheonan, KR), Roh; Whan-jin (Seoul, KR), Noh; Hyung-gon (Seoul, KR)

Assignee: Samsung Display Devices, Ltd.

International Classification: H01M 2/06 (20060101); H01M 2/08 (20060101); H01M 10/40 (20060101); H01M 10/36 (20060101); H01M 002/08 ()

Expiration Date: 06/26/2018