Patent ID: 11973175
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A method of manufacturing a pouch-shaped battery cell, the method sequentially comprising:
(a) forming an electrode assembly receiving portion in a laminate sheet to manufacture a preliminary battery case, the electrode assembly receiving portion defining corner portions extending from a first side outer periphery of the electrode assembly receiving portion to a bottom surface of the electrode receiving portion, the corner portions having a shape;
(b) placing an electrode assembly in the electrode assembly receiving portion and sealing outer peripheries of the preliminary battery case excluding the first side outer periphery of the preliminary battery case, through which gas is arranged to be discharged;
(c) disposing a fixing jig at each of the corner portions of the first side outer periphery of the electrode assembly receiving portion;
(d) performing an activation process and a degassing process, the degassing process being performed using a degassing apparatus;
(e) sealing the first side outer periphery of the electrode assembly receiving portion;
(f) removing an end of the preliminary battery case;
(g) removing the fixing jig,
wherein
step (d) to step (f) are performed when each of the corner portions is attached to an inner surface of the fixing jig to prevent the corner portions from being contracted such that the shape of the corner portions is substantially maintained, and

wherein the fixing jig is separate and distinct from the degassing apparatus.