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 .

公开(公告)号：EP4350852A1

公开(公告)日：2024-04-10

申请号：EP22818606.0

申请日：2022-10-17

Applicant: Eve Power Co., Ltd.

Inventor： LI, Shangyi ,  YUE, Liangliang ,  WANG, Zhiming

IPC: H01M50/179 ,  H01M50/184 ,  H01M50/188

Abstract: The present application provides a top cap assembly and a battery structure. The battery includes a housing including a mounting hole, and the top cap assembly passes through the mounting hole of the housing. The top cap assembly includes a pole, a sealing element, and a plastic element. The pole is provided with an annular groove recessed in a radial direction. The sealing element is sleeved on the pole and positioned in the annular groove. The sealing element is sandwiched between the housing and a groove wall of the annular groove, and the sealing element is partially positioned outside the housing. The plastic element is sleeved on the sealing element and positioned outside the housing 40, and the plastic element is partially sandwiched between the housing and the groove wall of the annular groove.

公开(公告)号：EP4343952A1

公开(公告)日：2024-03-27

申请号：EP22826581.5

申请日：2022-10-21

Applicant: Eve Power Co., Ltd.

Inventor： LI, Shangyi ,  YUE, Liangliang ,  WANG, Zhiming ,  CHEN, Min

IPC: H01M50/503

Abstract: A current collecting plate and a battery are provided in the present application, where the current collecting plate is applied to a battery including a battery cell and a housing, the current collecting plate includes a plate body and a buffer part, and at least two buffer parts are provided, each of the buffer parts is bent to form an abutment part, the abutment part is protruded from a side of the plate body away from the battery cell, the abutment part abuts against the housing, and one end of either of two adjacent ones of the buffer parts is connected through a weak part, and another end of the buffer part away from the weak part is connected with the plate body.

公开(公告)号：EP4478500A1

公开(公告)日：2024-12-18

申请号：EP23736588.7

申请日：2023-05-25

Applicant: Eve Power Co., Ltd.

Inventor： XIAO, Tianli ,  LI, Shangyi ,  CHEN, Wen

IPC: H01M50/188

Abstract: The present disclosure provide a battery shell assembly and a lithium-ion battery. The battery shell assembly includes a shell, a pole and an insulating assembly. The shell is formed with an accommodating cavity and has a first end and a second end that are opposite to each other. The pole is disposed at the first end and is insulatively connected to the shell. The insulating assembly is connected between the pole and the shell. The shell has a first surface opposite to the pole, the pole has a second surface opposite to the shell, and at least one of the first surface and the second surface is disposed with an insulating layer.

公开(公告)号：EP4303998A1

公开(公告)日：2024-01-10

申请号：EP22818599.7

申请日：2022-10-14

Applicant: Eve Power Co., Ltd.

Inventor： YUE, Liangliang ,  HUANG, Liming ,  XIAO, Tianli ,  CHEN, Wen ,  LI, Shangyi ,  LIU, Jing ,  XU, Yuebin

IPC: H01M50/567

Abstract: The present application provides a battery housing assembly and a battery. The housing assembly comprises a housing body, an electrode column and an insulating part, wherein the housing body is provided with a mounting hole, the electrode column penetrates the mounting hole, the column body comprises a first end and a second end, the second end is provided inside the housing body, the first end is provided with a restricting part, the second end is provided with a riveting part, the restricting part and the riveting part jointly clamp the insulating part and the housing body, the end surface of the second end is provided with a groove, and the groove is adjacent to the riveting part. By providing an integrated electrode column and fixing the electrode column and the housing body by riveting, not only may the structure of the electrode column be simplified, but also may reduce the gap generated by the assembly of the housing assembly and improve the sealing of the housing assembly; by providing a groove at the riveted end of the electrode column, a local thickness between the riveting part and the housing body may be reduced, so as to enable the riveting part to be bent according to the preset position, which may be easy to avoid the cracking problem due to the excessive length of the riveted flange, thereby reducing the difficulty of riveting.

公开(公告)号：EP4475298A1

公开(公告)日：2024-12-11

申请号：EP23736222.3

申请日：2023-05-25

Applicant: Eve Power Co., Ltd.

Inventor： XIAO, Tianli ,  LI, Shangyi ,  CHEN, Wen

IPC: H01M50/179 ,  H01M50/566 ,  H01M50/552

Abstract: The present disclosure provide a battery shell assembly and a lithium-ion battery. The battery shell assembly includes a shell, a pole and a connection terminal. The shell is formed with an accommodating cavity. The pole is disposed at the first end of the shell and is insulatively connected to the shell. The connection terminal is disposed on one side of the pole away from the shell. The connection terminal has a first welding portion and a second welding portion. The second welding portion is protrudingly disposed on one side of the first welding portion away from the pole. The first welding portion is electrically connected with the pole. The second welding portion is disposed to be electrically connected with an external circuit.

公开(公告)号：EP4343951A1

公开(公告)日：2024-03-27

申请号：EP22826582.3

申请日：2022-10-27

Applicant: Eve Power Co., Ltd.

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

IPC: H01M50/502

Abstract: A current collecting plate and a battery are provided. The battery includes a roll core, a pole and a current collecting plate, the roll core is welded to the current collecting plate, and the pole is electrically connected with the roll core through the current collecting plate. The current collecting plate includes a main body part and a welding part, the welding part is bent relative to the main body part, and the current collecting plate is welded with the roll core through the welding part.

公开(公告)号：EP4329072A1

公开(公告)日：2024-02-28

申请号：EP22822262.6

申请日：2022-11-04

Applicant: Eve Power Co., Ltd.

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

IPC: H01M50/342 ,  H01M50/152 ,  H01M50/213

Abstract: The present disclosure relates to the field of battery technology. A battery cell with directional pressure relief and a battery module are provided. The battery cell with directional pressure relief includes a housing and a cover plate, and the cover plate is buckled on the housing. The cover plate is provided with an explosion-proof valve, the explosion-proof valve includes an arc notch and a connecting portion, the arc notch and the connecting portion are connected end-to-end to enclose and define a circular structure, and the circular structure separates the cover plate into a circular part and an annular part. When a thermal runaway occurs, the explosion-proof valve is flushed open, the arc notch is fractured, and the circular part is turned around the connecting portion.