公开(公告)号：US20240154261A1

公开(公告)日：2024-05-09

申请号：US18411279

申请日：2024-01-12

Applicant: Ningde Amperex Technology Limited

Inventor： Ning Liu ,  Yu Ding ,  Daolin Liu

IPC: H01M50/533 ,  H01M10/0525 ,  H01M50/244 ,  H01M50/48 ,  H01M50/538

CPC classification number: H01M50/533 ,  H01M50/244 ,  H01M50/48 ,  H01M50/538 ,  H01M10/0525

Abstract: An electrochemical device and an electronic device containing the electrochemical device. With a first accommodation portion disposed in the electrochemical device, a specific accommodation space is provided for a bend portion of a first tab, thereby avoiding a need to additionally increasing space for accommodating the bend portion, where the space is originally intended for accommodating the electrode assembly. This effectively saves the space occupied by the tab in the packaging shell, reduces the size of the electrochemical device, and improves an energy density of the electrochemical device. The electronic device also achieves a high energy density.

公开(公告)号：US20230006311A1

公开(公告)日：2023-01-05

申请号：US17709666

申请日：2022-03-31

Applicant: Ningde Amperex Technology Limited

Inventor： Ning Liu ,  Wu Ma ,  Yu Ding ,  Daolin Liu

IPC: H01M50/529 ,  H01M50/533 ,  H01M10/0585 ,  H01M50/54 ,  H01M50/204

Abstract: An electrochemical device includes a packaging shell having a first packaging body provided with a first dent and a first flange connected to a sidewall of the first dent, and a second packaging body 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 including a partition layer and a first bonding layer located on a first surface of the partition layer. The partition plate is located between the first packaging body and the second packaging body. The flange overlaps the partition plate and extends beyond an edge 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.

公开(公告)号：US20250023149A1

公开(公告)日：2025-01-16

申请号：US18901584

申请日：2024-09-30

Applicant: Ningde Amperex Technology Limited

Inventor： Daolin Liu ,  Ping He

IPC: H01M50/112 ,  H01M50/174 ,  H01M50/474 ,  H01M50/477 ,  H01M50/483 ,  H01M50/486 ,  H01M50/55

Abstract: An electrochemical device, including a housing and N separators. The N separators and the housing together define N+1 accommodating cavities arranged along a first direction. The N+1 accommodating cavities include a first accommodating cavity and a second accommodating cavity adjacent to each other, wherein N≥2. A first electrode assembly is accommodated in the first accommodating cavity, and a second electrode assembly is accommodated in the second accommodating cavity. The second electrode assembly is far from a reference surface relative to the first electrode assembly. The reference surface is a plane that passes through the 10 center of the electrochemical device along the first direction and is perpendicular to the first direction. The volume V1 of the first accommodating cavity and the volume V2 of the second accommodating cavity satisfy 0.5%≤(V2−V1)/V1≤5%, so that the safety performance of the electrochemical device is improved.