| 摘要 |
Provided is a pouch-type lithium secondary battery, which has curved side parts by forming sealing parts separated from the edges of an electrode assembly-receiving part at both side parts of a pouch and is applicable to round-shape electronic equipment. The pouch-type lithium secondary battery comprises: an electrode assembly having a first electrode plate with a first electrode tap, a second electrode plate with a second electrode tap, and a separator interposed between the first electrode plate and the second electrode plate; and a pouch consisting a front side and a back side having an electrode assembly-receiving part(123). Each wing part(127) of the pouch which is extended from both side parts of the pouch and from which the electrode tap is not drawn, comprises a sealing part(127a) for fusing the front side and back side of the pouch together, and an unsealing part(127b) formed between the sealing part(127a) and the edges of the electrode assembly-receiving part(123). The unsealing part(127b) has a width of 0.5-1.5mm. |
