US 12,074,332 B2
Method and device for connecting composite metal foils for pouch cells with a pre-sealing tape
Frederik Grau, Braunschweig (DE); Kartik Jamadar, Wolfsburg (DE); and Christian Theuerkauf, Braunschweig (DE)
Assigned to VOLKSWAGEN AKTIENGESELLSCHAFT, Wolfsburg (DE)
Filed by VOLKSWAGEN AKTIENGESELLSCHAFT, Wolfsburg (DE)
Filed on Jan. 15, 2021, as Appl. No. 17/150,413.
Claims priority of application No. 10 2020 101 087.7 (DE), filed on Jan. 17, 2020.
Prior Publication US 2021/0226286 A1, Jul. 22, 2021
Int. Cl. H01M 50/186 (2021.01); H01M 50/105 (2021.01); H01M 50/119 (2021.01); H01M 50/124 (2021.01)
CPC H01M 50/186 (2021.01) [H01M 50/105 (2021.01); H01M 50/119 (2021.01); H01M 50/124 (2021.01); H01M 2220/20 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for connecting a pre-sealing tape to a composite metal foil for pouch cells, comprising at least the following steps:
a) creating a texture in at least a partial area of the composite metal foil;
b) applying a pre-sealing tape onto the composite metal foil, whereby the texture is at least partially covered by the pre-sealing tape;
c) connecting the pre-sealing tape to the composite metal foil to form a composite body; and
d) cutting the composite body to the predefined finished contour,
whereby, prior to step a), the composite metal foil is inserted into a shaping device having a recess, and
whereby the texture on the composite metal foil is created in step a) by means of an insert in a hold-down device in the shaping device.