US 11,721,865 B2
Battery
Bin Liu, Ningde (CN); Peipei Guo, Ningde (CN); and Fang Liu, Ningde (CN)
Assigned to NINGDE AMPEREX TECHNOLOGY LIMITED, Ningde (CN)
Appl. No. 16/649,810
Filed by NINGDE AMPEREX TECHNOLOGY LIMITED, Ningde (CN)
PCT Filed Mar. 12, 2020, PCT No. PCT/CN2020/079036
§ 371(c)(1), (2) Date Mar. 23, 2020,
PCT Pub. No. WO2021/031553, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 201910757456.5 (CN), filed on Aug. 16, 2019.
Prior Publication US 2021/0408628 A1, Dec. 30, 2021
Int. Cl. H01M 50/559 (2021.01); H01M 10/052 (2010.01); H01M 50/247 (2021.01); H01M 50/202 (2021.01); H01M 50/107 (2021.01)
CPC H01M 50/202 (2021.01) [H01M 10/052 (2013.01); H01M 50/107 (2021.01); H01M 50/247 (2021.01); H01M 50/559 (2021.01); H01M 2220/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A battery, comprising:
a curved cell, having a first surface and a second surface opposite to the first surface;
a tab unit, connected to the cell and comprising a curved portion and a flat portion; and
a package, comprising:
a receiving portion comprising a first receiving unit and a second receiving unit opposite to the first receiving unit; and
a flat encapsulating edge surrounding the receiving portion;
wherein the cell is curved along a direction perpendicular to an extending direction of the tab unit; the cell and the curved portion are received in the receiving portion; a radian of the first receiving unit and a radian of the second receiving unit are respectively matched with a radian of the first surface of the cell and a radian of the second surface of the cell; and the flat portion of the tab unit is sealingly attached to the flat encapsulating edge of the package and penetrates outward from the flat encapsulating edge, and wherein the curved portion of the tab unit is curved along the direction perpendicular to the extending direction of the tab unit.