Pouch Type Battery Case and Apparatus for Forming the Same
AssigneeLG Energy Solution, Ltd.
InventorsJeong Woo Hong, Tae Won Kang, Chung Hee Lee, Sung Woo Cho
Life of this patent
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Abstract
A pouch type battery case has a pair of cases in which at least one of the pair of cases includes: a cup part, a terrace, and a protrusion. The cup part is recessed; a and the terrace is disposed on a circumference of the cup part and has a sealing part. The protrusion protrudes from the terrace in a direction opposite to a depth direction of the cup part and at least a portion of the sealing part is provided on the protrusion. An apparatus for manufacturing the pouch type battery case is also provided.
Claims16
A pouch type battery case comprising a pair of cases, wherein at least one of the pair of cases comprises:
- a cup part being recessed in a depth direction;
- a terrace disposed along a circumference of the cup part and including a sealing part;
- and
- a protrusion protruding from the terrace in a direction opposite to the depth direction,
- wherein at least a portion of the sealing part is provided on the protrusion.
A forming apparatus comprising:
- a die including a molding recess;
- a punch disposed so as to face the molding recess;
- a stripper disposed along a circumference of the punch so as to face the die, wherein the stripper includes a sub-molding recess;
- a sub-punch protruding from the die and being disposed to face the sub-molding recess;
- a pressing part accommodated in the sub-molding recess;
- and
- an elastic member configured to apply an elastic force to the pressing part, wherein the pressing part is configured to apply the elastic force to the sub-punch.
Dependencies are inferred from the claim text.