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US 12,614,778 B2Granted
Pouch cell cutting apparatus and pouch cell manufacturing method
AssigneeLG Energy Solution, Ltd.
InventorsJu Hyung Kim, Ji Soo Park, Sin Young Park, Dong Hyeuk Park
Life of this patent
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Abstract
A pouch cell cutting apparatus according to an embodiment of the present disclosure, includes a top knife and a bottom knife for cutting a sealing part of a battery cell which includes a cell case and an electrode assembly housed in the cell case, wherein both side parts of the top knife comprises protrusion parts protruding toward the recessed parts formed on both side parts of the bottom knife, respectively, and wherein a corner part of the battery cell is cut by the protrusion part.
Claims5
A pouch cell cutting apparatus, comprising:
- a top knife and a bottom knife together configured to cut a sealing part of a battery cell which includes a cell case and an electrode assembly housed in the cell case,
- wherein the top knife has a cutting edge configured to cut the sealing part of the battery cell,
- wherein the cutting edge of the top knife has a central recessed part extending in a longitudinal direction, the central recessed part extending between first and second opposite side parts of the cutting edge of the top knife, the first and second opposite side parts being protrusion parts that extend from the central recessed part at first and second inclination angles relative to the central recessed part, the protrusion parts having shapes that are complementary to shapes of first and second recessed parts of a cutting edge of the bottom knife, and
- wherein the protrusion parts are configured to cut first and second corner parts at opposite ends of a side surface part of the sealing part of the battery cell at the first and second inclination angles, and the central recessed part is configured to cut the side surface part of the battery cell, the pouch cell cutting apparatus being configured to simultaneously cut the first and second corner parts and the side surface part of the battery cell.
1 more element
Dependencies are inferred from the claim text.