| 摘要 |
A secondary battery is provided which has an improved sealing structure between electrode tabs (23,23';53,53') acting as terminals of the battery, and a dielectric package (30;70), which is capable of preventing leakage of an organic electrolyte. The secondary battery includes a battery body (20;50) having a positive electrode, a negative electrode and a separator which are stacked, and electrode tabs (23,23';53,53'); a dielectric package (30;70) having upper (30a;70a) and lower (30b;70b) dielectric packages, for enclosing the battery body (20;50) by sealing edge portions of the upper (30a;70a) and lower (30b;70b) dielectric packages while the electrode tabs (23,23';53,53') are partially exposed to the outside; and sealing materials (25,25';55,55') coated on predetermined portions of the electrode tabs (23,23';53,53') by a predetermined width, for preventing leakage of an organic liquid electrolyte while being interposed and fused between the edge portions of the upper (30a;70a) and lower (30b;70b) dielectric packages. |
