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|1. (WO2018139739) BATTERY PACK|
|Applicants:||SAMSUNG SDI CO., LTD.
|Inventors:||KIM, Jun Seop
KANG, Il Oh
MOON, Dea Yon
WOO, Min Uk
LEE, Won Il
The present invention provides a battery pack comprising: a lower case which has a space therein so as to improve the sealability of a battery pack, and which has a groove portion formed to extend along a predetermined width of an outer upper surface thereof; an upper case arranged on the lower case; a battery portion accommodated in the inner space of the lower case and including a plurality of battery cells; and a sealing member inserted into the groove portion so as to be interposed between the upper case and the lower case, and having a cross section shape, which has an upper surface, a lower surface, and a side surface for connecting the upper surface and the lower surface, wherein the upper surface is formed as a curved surface, which is convex toward the upper case, and a protrusion portion for forming a stepped portion with the upper surface is positioned at the side surface.