US 2026/0031318 A1Published application

High throughput staggered electrode tab manufacturing process

AssigneeGM Global Technology Operations LLC

InventorsLiang Xi, Xiangji Bu, Mahboob Murshed, Hyunmin Choe, SriLakshmi Katar

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Abstract

Disclosed is a method including depositing a first strip of active material for a battery on an electrically conductive foil, the first strip having a first edge and an opposite second edge, depositing a second strip of active material for the battery on the electrically conductive foil, wherein the second strip has a first edge and an opposite second edge, the first edge of the second strip being spaced a distance from the second edge of the first strip of active material for the battery, forming a first set of a plurality of tabs in the electrically conductive foil extending in a first direction away from the second edge of the first strip, forming a second set of a plurality of tabs in the electrically conductive foil extending in a second direction away from the first edge of the second strip.

Claims20

Dependent claims

A method comprising:

depositing a first strip of active material for a battery on an electrically conductive foil, the first strip of active material for the battery having a first edge and an opposite second edge, the first strip of active material for the battery having a first width between the first edge in the opposite second edge of the first strip of active material for the battery;
depositing a second strip of active material for the battery on the electrically conductive foil, wherein the second strip of active material for the battery has a first edge and an opposite second edge, the first edge of the second strip of active material for the battery being spaced a distance from the second edge of the first strip of active material for the battery, the second strip of active material for the battery having a second width between the first edge and the opposite second edge of the second strip of active material for the battery;
the first width being different than the second width;
forming a first set of a plurality of tabs in the electrically conductive foil extending in a first direction away from the second edge of the first strip of active material for the battery;
and
forming a second set of a plurality of tabs in the electrically conductive foil extending in a second direction away from the first edge of the second strip of active material for the battery.

3 more elements

A method comprising:

depositing a first strip of active material for a battery on an electrically conductive foil, the first strip of active material for the battery having a first edge and an opposite second edge, the first strip of active material for the battery having a first width between the first edge in the opposite second edge of the first strip of active material for the battery;
forming a first set of a plurality of tabs in the electrically conductive foil extending in a first direction away from the second edge of the first strip of active material for the battery;
forming a second set of a plurality of tabs in the electrically conductive foil extending in a second direction away from the first edge of the first strip of active material for the battery;
and
slitting the first strip and the electrically conductive foil midway between the first edge and the second edge of the first strip.

2 more elements

A method comprising:

depositing a first strip of active material for a battery on an electrically conductive foil, the first strip of active material for the battery having a first edge and an opposite second edge, the first strip of active material for the battery having a first width between the first edge and the opposite second edge of the first strip of active material for the battery;
depositing a second strip of active material for the battery on the electrically conductive foil, wherein the second strip of active material for the battery has a first edge and an opposite second edge, the first edge of the second strip of active material for the battery being spaced a distance from the second edge of the first strip of active material for the battery, the second strip of active material for the battery having a second width between the first edge and the opposite second edge of the second strip of active material for the battery;
the second width being twice the first width;
depositing a third strip of active material for a battery on an electrically conductive foil, the third strip of active material for the battery having a first edge and an opposite second edge, the third strip of active material for the battery having a third width between the first edge and the opposite second edge of the first strip of active material for the battery;
the third width is equal to the second width;
depositing a fourth strip of active material for the battery on the electrically conductive foil, wherein the fourth strip of active material for the battery has a first edge and an opposite second edge, the first edge of the fourth strip of active material for the battery being spaced a distance from the second edge of the third strip of active material for the battery, the fourth strip of active material for the battery having a fourth width between the first edge in the opposite second edge of the fourth strip of active material for the battery;
and
the fourth width is equal to the first width.

5 more elements

Dependencies are inferred from the claim text.