Back to results
US 2023/0275291 A1Published application
Battery Cell and Manufacturing Method Thereof
AssigneeLG Energy Solution, Ltd.
InventorsJin Yong Park, Hangjune Choi, Jeong Oh Moon, Ho June Chi
Life of this patent
Estimating the term…
Abstract
A battery cell according to one embodiment of the present disclosure includes an electrode assembly including a positive electrode, a negative electrode, and a separator; and a pouch case in which a recessed portion for housing the electrode assembly is formed, wherein the pouch case is bent on the basis of at least one edge line among the edges formed by the recessed portion.
Claims10
A battery cell comprising:
- an electrode assembly including a positive electrode, a negative electrode, and a separator;
- and
- a pouch case in which a recessed portion for housing the electrode assembly is formed, the pouch case extending around the electrode assembly, the recessed portion defining a plurality of edge lines,
- wherein the pouch case is bent at least one of the edge lines of the recessed portion.
1 more element
A method of manufacturing a battery cell comprising the steps of:
- performing a first bending of a pouch case about a bending line and seating the pouch case in a mold, with the mold including a stepped portion and a recessed forming portion, and at least one edge line of the forming portion forming a stepped line of the stepped portion, the bending line of the pouch case being disposed along the stepped line of the stepped portion of the mold,
- then forming the pouch case to have a shape conformal to the forming portion, thereby forming a recessed portion of the pouch case;
- and
- then performing a second bending of the pouch case along the bending line to bring opposing surfaces of the pouch case into contact with each other.
1 more element
Dependencies are inferred from the claim text.