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US 12,042,976 B2Granted
Punch pin hole inspection apparatus and method using punch and die
AssigneeLG Energy Solution, Ltd.
InventorsHo June Chi, Hang June Choi, Jeong Oh Moon, Jin Yong Park
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Abstract
A punch pin hole inspection apparatus and method uses a punch and a die capable of checking defects or damage, specifically pin holes or microcracks, due to shaping immediately after finishing shaping a laminate sheet into a battery case using the punch.
Claims13
A battery case shaping apparatus comprising:
- a punch configured to press a laminate sheet in order to form a battery case including an electrode assembly receiving portion;
- a die forming an accommodation portion corresponding in size to the electrode assembly receiving portion;
- a holder configured to fix an outer edge of the laminate sheet;
- a conductive elastic separator located under the punch and configured to prevent direct contact between the punch and the laminate sheet;
- and
- a current measurement portion configured to measure current between the punch and the die.
3 more elements
Dependencies are inferred from the claim text.