US 12,438,239 B2
Electrochemical device and electronic device containing same
Ning Liu, Ningde (CN); Wu Ma, Ningde (CN); Yu Ding, Ningde (CN); and Daolin Liu, Ningde (CN)
Assigned to NINGDE AMPEREX TECHNOLOGY LIMITED, Ningde (CN)
Filed by Ningde Amperex Technology Limited, Ningde (CN)
Filed on Mar. 31, 2022, as Appl. No. 17/709,666.
Claims priority of application No. 202110756520.5 (CN), filed on Jul. 5, 2021.
Prior Publication US 2023/0006311 A1, Jan. 5, 2023
Int. Cl. H01M 50/529 (2021.01); H01M 10/0585 (2010.01); H01M 50/204 (2021.01); H01M 50/533 (2021.01); H01M 50/54 (2021.01); H01M 10/0525 (2010.01)
CPC H01M 50/529 (2021.01) [H01M 10/0585 (2013.01); H01M 50/204 (2021.01); H01M 50/533 (2021.01); H01M 50/54 (2021.01); H01M 10/0525 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An electrochemical device, wherein the electrochemical device comprises:
a packaging shell comprising a first packaging body and a second packaging body, the first packaging body is provided with a first dent and a first flange connected to a sidewall of the first dent, and the second packaging body is provided with a second dent and a second flange connected to a sidewall of the second dent;
a first electrode assembly disposed in the first dent;
a second electrode assembly disposed in the second dent; and
a partition plate comprising a partition layer and a first bonding layer located on a first surface of the partition layer, and the partition plate is located between the first packaging body and the second packaging body; along a first direction, the first flange and the second flange each comprise a first region and a second region; in the first region, the flange overlaps the partition plate in a second direction; in the second region, the flange extends beyond an edge of the partition plate; and the first direction is a width direction of the first flange and the second flange, and the second direction is a thickness direction of the partition plate;
the partition plate fits with the first packaging body and the second packaging body to form mutually independent cavities on two sides of the partition plate respectively;
wherein a thickness of the partition plate is 30 μm to 100 μm.