US 12,278,384 B2
High capacity curved battery cells
Jason Howard, Alpharetta, GA (US); and Douglas Moskowitz, Rocklin, CA (US)
Assigned to Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on Apr. 6, 2022, as Appl. No. 17/714,981.
Prior Publication US 2023/0327255 A1, Oct. 12, 2023
Int. Cl. H01M 50/213 (2021.01); H01M 10/02 (2006.01); H01M 50/107 (2021.01); H01M 50/244 (2021.01); H01M 50/247 (2021.01); H01M 50/531 (2021.01)
CPC H01M 50/213 (2021.01) [H01M 10/02 (2013.01); H01M 50/107 (2021.01); H01M 50/244 (2021.01); H01M 50/247 (2021.01); H01M 50/531 (2021.01); H01M 2220/30 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A device, comprising:
a first curved battery cell having a first curvature, the first curved battery cell including a first electrode stack with a first cell tab electrically coupled to and extending from the first electrode stack, and including a second electrode stack with a second cell tab electrically coupled to and extending from the second electrode stack;
a first cell casing, wherein the first cell casing is formed of a metal and the first electrode stack and the second electrode stack are sealed in the first cell casing;
a single combined cell tab including the first cell tab and the second cell tab, wherein the first cell tab is electrically coupled with the second cell tab inside of the first cell casing to provide the single combined cell tab, and wherein the single combined cell tab protrudes from or through the first cell casing;
a battery pack housing that houses the first curved battery cell and a second curved battery cell having a second curvature, the second curvature complementary to the first curvature, wherein the battery pack housing includes a curved surface having a third curvature, the third curvature complementary to at least one of the first curvature or the second curvature; and
a first adhesive layer adhering the first curved battery cell to the second curved battery cell.