Lg Energy Solution, Ltd.

Eui Jin Hong

Sang Kyun Lee

Min Soo Park

Young Ha Kim

Young Hoon Hong

Seong Hyun Kim

Dong Yeon Kim

Jin Hak Kong

To achieve the above objects, a battery case for a secondary battery, the battery case being a pouch type battery case that is configured to accommodate an electrode assembly therein, the electrode assembly including stacked electrodes and separators therein, the battery case according to an embodiment of the present invention including a first cup part and a second cup part, each formed as a respective recess extending downward from a top surface of a pouch film; a bridge formed between the first cup part and the second cup part and having a constant width and height; and two complement parts disposed outside of respective first and second longitudinal ends of the bridge, each of the complement parts protruding upward from the top surface of the pouch film.

Battery case for secondary battery and pouch type secondary battery

An apparatus for manufacturing a secondary battery includes a first guide in which one side of one end is recessed to define a concave space, wherein, when a battery case of the secondary battery is folded, the one end is configured to be inserted into the battery case to push a folding part of the battery case to an outside; and a second guide configured to hold a sealing part of the battery case so as to fix the battery case.

Apparatus and method for manufacturing secondary battery

A pouch type battery case for a secondary battery, which accommodates an electrode assembly, in which electrodes and separators are stacked, includes a first cup part and a second cup part, which are recessed in a pouch film, respectively; an accommodation part, which is provided in a longitudinal direction of edges of the first cup part and the second cup part, which face each other, between the first cup part and the second cup part and in which one side of the electrode assembly is configured to be accommodated; inclined parts extending from opposing ends, respectively, of the accommodation part and provided to be recessed in the pouch film; and line forming parts extending linearly from outer ends, respectively, of the respective inclined parts and provided to be recessed in the pouch film in the same direction as the longitudinal direction of the accommodation part.

An apparatus for manufacturing a secondary battery includes: a recess induction part configured to allow a folding part folded in a battery case of a secondary battery to be recessed inward so as to provide a recess part when the battery case of the secondary battery is folded; a first guide, of which one side of one end is recessed to define a concave space, wherein, when the battery case of the secondary battery is folded, the one end is configured to be inserted into the battery case to push the folding part to an outside so that the recess induction part is configured to be inserted into the concave space; and a second guide configured to hold a sealing part of the battery case so as to fix the battery case.

Growing community of inventors

Daejeon, South Korea

Eui Jin Hong