公开(公告)号：US20250030002A1

公开(公告)日：2025-01-23

申请号：US18901390

申请日：2024-09-30

Applicant: Ningde Amperex Technology Limited

Inventor： Xingyong WANG ,  Dongdong HAN ,  Kefei WANG

IPC: H01M4/62 ,  H01M10/052 ,  H01M10/0587

Abstract: An electrochemical apparatus includes an electrode assembly. The electrode assembly includes an electrode plate; the electrode plate includes a current collector; the current collector includes a first region and a second region; an active material layer is arranged on the first region; and a functional layer is arranged on the second region, and the functional layer includes an organic polymer and inorganic particles, where the thickness of the functional layer is H1, where 1 μm≤H1≤15 μm; and Dv90 of the inorganic particles satisfies: 1 μm≤Dv90≤4.5 μm.

公开(公告)号：US20250030004A1

公开(公告)日：2025-01-23

申请号：US18901131

申请日：2024-09-30

Applicant: Ningde Amperex Technology Limited

Inventor： Xingyong WANG

IPC: H01M4/62 ,  H01M10/04 ,  H01M4/02

Abstract: An electrochemical apparatus is provided, including an electrode assembly. The electrode assembly includes an electrode plate, the electrode plate includes a current collector, and the current collector includes a first region and a second region. An active material layer is disposed in the first region, a functional layer is disposed in the second region, and a volume ratio of the functional layer to the active material layer is R, where 1%≤R≤10%. The electrochemical apparatus of this application has a high electrolyte retention amount, a smooth appearance, and a good cycling performance.