Battery Device and Method of Manufacturing the Same

原文（中国語）

A battery device according to the present disclosure may include: a cell assembly having a plurality of battery cells arranged in a first direction; a case having an accommodation space in which the cell assembly is accommodated; and a surface pressure member disposed between the cell assembly accommodated in the accommodation space and the case, wherein the surface pressure member may include: an outer cover having a sealed inner space and formed of a flexible material; a support member disposed in the inner space of the outer cover; and a reinforcing frame coupled to both ends of the outer cover.