公开(公告)号：EP4376135A1

公开(公告)日：2024-05-29

申请号：EP22826788.6

申请日：2022-11-04

Applicant: Eve Power Co., Ltd. ,  Huizhou Eve Power Co., Ltd

Inventor： CHEN, Wen ,  LI, Shangyi ,  HUANG, Liming

IPC: H01M10/00 ,  H01M6/00 ,  H01M10/04 ,  H01M50/533

CPC classification number: Y02P70/50

Abstract: The application discloses a coil structure, including a coil, both positive and negative tabs of the coil include a tab uncut area between the tab outer ring cut-out area and the tab center cut-out area, and along the axial direction of the coil, the tab uncut area protrudes from the tab outer ring cut-out area and the tab center cut-out area. After the above-mentioned cut-out area is cut by the cutting process, the problem that the edge of the tab is turned out after rubbing can be improved, and the avoidance space provided by the cutting process can also reduce the risk of tab deformation caused by the extrusion of the jellyroll with the case, and solve the problem that the welding needle or thimble cannot smoothly enter the center hole. Cutting off the negative electrode tab outer ring can also reserve a space for the installation of the negative current collection plate, which can prevent the negative current collection plate from sinking during the battery sealing process, resulting in an increase in the core pressing amount and avoiding short circuit. The application also discloses a battery including the above-mentioned coil structure.

公开(公告)号：EP4513614A1

公开(公告)日：2025-02-26

申请号：EP24195637.4

申请日：2024-08-21

Applicant: Huizhou EVE Power Co., Ltd

Inventor： CHEN, Wen ,  LI, Shangyi ,  WANG, Zhiming

IPC: H01M10/0587 ,  H01M50/179 ,  H01M50/184 ,  H01M50/186 ,  H01M50/191 ,  H01M50/559 ,  H01M50/566 ,  H01M50/107 ,  H01M50/152 ,  H01M50/188 ,  H01M50/543 ,  H01M10/0525

Abstract: A cap includes: a cap body (10); a pole (20); and a sealing nail (30). The pole is connected to the cap body. The pole defines a slot; a plane in which an upper surface of the pole is located is defined as a first plane (22); a slot wall includes a first section face (23); the first section face is connected to the first plane; an angle between the first section face and the first plane is θ 2 . The sealing nail is arranged in the slot and welded to the pole. A plane in which an upper surface of the sealing nail is located is defined as a second plane (31); a side wall of the sealing nail includes a first portion face (32); the first portion face is connected to the second plane; an angle between the first portion face and the second plane is θ 1 . The angle θ 1 ≥ the angle θ 2 .