Battery pack

摘要

A battery pack having excellent assembling efficiency and strength against drop impact. The battery pack includes: an electrode assembly; a case that has a space accommodating the electrode assembly and includes a wing portion having a plurality of through-holes in at least one direction of the outer circumference; and a frame that includes a frame body disposed to encompass the outer circumference of the case and a frame coupling unit integrally formed with the frame body and coupling the case to the frame body via the through-holes.

主权项

1. A battery pack comprising:
an electrode assembly; a case comprising a first case unit and a second case unit each having an outer circumference wherein the case has a space accommodating the electrode assembly and wherein the first case unit and the second case unit each comprises a wing portion having a plurality of through-holes in at least one direction of the outer circumference wherein the plurality of through-holes in the first case unit and the second case unit are aligned so that each aligned set of through-holes defines a single opening having a depth at least equal to the combined thicknesses of the wing portions of the first and second case units when the electrode assembly is secured within the case unit; and a frame that comprises a frame body disposed to encompass the outer circumference of the case and a frame coupling unit integrally formed with the frame body and coupling the case to the frame body via the frame coupling units extending through the single openings defined by the aligned through-holes in both the first and second case units.