US 11,942,661 B2
Battery cells with tabs at right angles
Christopher T. Campbell, San Jose, CA (US); Nivay Anandarajah, San Leandro, CA (US); William A. Braff, Palo Alto, CA (US); Oskar Dondelewski, San Jose, CA (US); and Russell A. McLellan, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 24, 2021, as Appl. No. 17/448,808.
Prior Publication US 2023/0101797 A1, Mar. 30, 2023
Int. Cl. H01M 50/531 (2021.01); H01M 50/505 (2021.01); H01M 50/55 (2021.01)
CPC H01M 50/531 (2021.01) [H01M 50/505 (2021.01); H01M 50/55 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A battery comprising:
a housing comprising a first terminal disposed on a first side of the housing and a second terminal disposed on the first side of the housing; and
an electrode stack positioned within the housing, the electrode stack comprising:
an anode current collector, wherein the anode current collector is characterized by a first side facing the first side of the housing, wherein the anode current collector defines an anode tab along a second side of the anode current collector, the anode tab extending from the anode current collector in a direction normal to a direction facing the first side of the housing, and wherein the anode tab is electrically coupled with the first terminal, and
a cathode current collector, wherein the cathode current collector is characterized by a first side facing the first side of the housing, wherein the cathode current collector defines a cathode tab along a second side of the cathode current collector, the cathode tab extending from the cathode current collector in a direction normal to the direction facing the first side of the housing, and wherein the cathode tab is electrically coupled with the second terminal, wherein:
the cathode current collector defines a first and second series of cathode tabs distributed along the second side of the cathode current collector;
the first series of cathode tabs is closer to the first side of the housing than the second series of cathode tabs; and
a first spacing between each cathode tab of the first series of cathode tabs is greater than a second spacing between each cathode tab of the second series of cathode tabs.