公开(公告)号：US20240356057A1

公开(公告)日：2024-10-24

申请号：US18757595

申请日：2024-06-28

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Baojian ZHU ,  Lei Chen ,  Shoujiang Xu ,  Chunyan Feng

IPC: H01M10/04 ,  H01M50/15 ,  H01M50/536 ,  H01M50/538 ,  H01M50/55

CPC classification number: H01M10/0468 ,  H01M50/15 ,  H01M50/538 ,  H01M50/536 ,  H01M50/55

Abstract: The disclosure relates to a top compression plate, a secondary battery and a method for manufacturing a secondary battery. The secondary battery includes a cap plate; an electrode terminal disposed on the cap plate; an electrode assembly which comprises a main body and a tab connected to the main body, wherein the tab is connected to the electrode terminal; an insulating member disposed between the cap plate and the main body, wherein the insulating member comprises a connecting protrusion extending toward the main body; and a top compression plate disposed between the insulating member and the main body. The top compression plate comprises a first surface facing the main body and a mounting hole mating with the connecting protrusion, and a top end surface of the connecting protrusion does not exceed the first surface.

公开(公告)号：US20210043912A1

公开(公告)日：2021-02-11

申请号：US16964318

申请日：2019-10-15

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Baojian ZHU ,  Lei CHEN ,  Shoujiang XU ,  Chunyan FENG

IPC: H01M2/26 ,  H01M2/12 ,  H01M10/0585 ,  H01M2/34

Abstract: This application relates to a top pressing plate, a secondary battery, and a method for manufacturing a secondary battery. The top pressing plate is used for a secondary battery, the secondary battery including a top cover sheet, an insulating separator and an electrode assembly, the electrode assembly including a main body portion and electrode tabs connected to the main body portion, the electrode tabs each including a welding end portion, the top pressing plate includes: a first surface and a second surface provided oppositely in a thickness direction of the top pressing plate and an accommodating groove recessed from the second surface toward the first surface, the top pressing plate can be provided between the insulating separator and the main body portion, the first surface faces the main body portion, the second surface faces the insulating separator, and the accommodating groove is disposed to accommodate the welding end portion.

公开(公告)号：US20220115751A1

公开(公告)日：2022-04-14

申请号：US17557172

申请日：2021-12-21

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xichen WEI ,  Baojian ZHU ,  Shoujiang XU ,  Lei CHEN

IPC: H01M50/533 ,  H01M50/103 ,  H01M50/147 ,  H01M50/553 ,  H01M10/04

Abstract: A secondary battery. The secondary battery includes an electrode assembly, a housing, a top cover assembly, a current collecting member, and an insulation member. The electrode assembly is accommodated in the housing and includes a body portion and a first tab. The first tab extends from one end of the body portion in a transverse direction. The top cover assembly includes a top cover plate and a first electrode terminal disposed on the top cover plate. The top cover plate is connected to the housing, and the first electrode terminal is connected to the current collecting member. The insulation member is disposed between the body portion and the current collecting member. The insulation member includes a through gap. The first tab passes.

公开(公告)号：US20210234148A1

公开(公告)日：2021-07-29

申请号：US17232142

申请日：2021-04-15

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jiazheng WANG ,  Yuliang SHEN ,  Meng KANG ,  Libing HE ,  Baojian ZHU ,  Lei CHEN

IPC: H01M4/13 ,  H01M4/485 ,  H01M4/587 ,  H01M10/0525

Abstract: The present invention provides a negative electrode plate and a battery. The negative electrode plate comprises a negative current collector and a negative film that is provided on at least one surface of the negative current collector and comprises a negative active material. The negative film meets the follow relations: 6.0≤PD×Dv50≤32.0 and 0.2≤PD/Dn10≤12.0. The negative electrode plate of the present invention has excellent dynamic performance, and the battery of the present invention has both excellent dynamic performance and long cycle life.