US 12,191,511 B2
Battery cell with serpentine tab
Kyle Tse, Fremont, CA (US); Abhishek P. Shiwalkar, Sunnyvale, CA (US); Shawn G. Fink, Sunnyvale, CA (US); Christopher R. Pasma, Redwood City, CA (US); Hirotsugu Oba, Sunnyvale, CA (US); and Brian K. Shiu, Sunnyvale, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on May 14, 2020, as Appl. No. 16/874,355.
Claims priority of provisional application 62/864,071, filed on Jun. 20, 2019.
Prior Publication US 2020/0403210 A1, Dec. 24, 2020
Int. Cl. H01M 50/531 (2021.01); H01M 50/186 (2021.01); H01M 50/191 (2021.01); H01M 50/533 (2021.01)
CPC H01M 50/186 (2021.01) [H01M 50/191 (2021.01); H01M 50/531 (2021.01); H01M 50/533 (2021.01)] 11 Claims
OG exemplary drawing
 
1. A battery cell, comprising:
a set of layers comprising a cathode layer, an anode layer, and a separator layer disposed between the cathode layer and the anode layer;
an enclosure enclosing the set of layers;
a cap disposed over an opening of the enclosure, wherein the cap comprises a channel extending along a periphery of a surface of the cap; and
a feedthrough comprising:
a pin extending from the surface of the cap to form an external battery terminal;
an insulator surrounding the pin and configured to electrically isolate the pin;
a serpentine tab electrically coupled to the pin extending from the surface of the cap at a first end, the serpentine tab electrically coupled to a tab extending from the set of layers at a second end; and
wherein the serpentine tab is nested within the channel to minimize use of space within the enclosure.