公开(公告)号：US20200321591A1

公开(公告)日：2020-10-08

申请号：US16429914

申请日：2019-06-03

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Dongyang Shi ,  Yuanbao Chen ,  Haizu Jin ,  Zhenhua Li ,  Ning Chen ,  Fei Hu ,  Tian Wu

IPC: H01M2/24 ,  H01M2/26 ,  H01M2/04

Abstract: The present invention relates to a secondary battery and a battery module. The secondary battery includes: a casing including a receiving cavity having an opening; a top cover assembly, and an electrode assembly disposed in the receiving cavity, wherein the electrode assembly includes two end faces disposed opposite to each other in a first direction perpendicular to a depth direction of the receiving cavity, a lug extending from each end face; the lug is a layered structure and has a redundant section near the end face and a connecting section connected to the redundant section; the current collecting member includes a current collecting portion fixedly connected to the connecting section. The lug of the secondary battery of the embodiment of the present invention has the redundant section, which can effectively buffer the movement and reduce the possibility that the lug is torn or broken due to an excessive tensile stress.

公开(公告)号：US20200212412A1

公开(公告)日：2020-07-02

申请号：US16437932

申请日：2019-06-11

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Haizu Jin ,  Dongyang Shi ,  Zhenhua Li ,  Xingdi Chen ,  Ning Chen ,  Fei Hu

IPC: H01M2/26 ,  H01M10/0587 ,  H01M10/04 ,  H01M2/04 ,  H01M2/10

Abstract: The present disclosure relates to a battery module and a battery pack. The battery module comprises two or more secondary batteries arranged side by side in a first direction, each of which includes a case, an electrode assembly and a closing portion, wherein the case has a receiving hole comprising an opening and extending in a second direction, and the first direction intersects with the second direction, wherein the closing portion is sealingly connected with the case to close the opening, the electrode assembly is disposed in the receiving hole and includes two or more electrode units, the electrode unit includes a first electrode plate, a second electrode plate and a separator, and the two or more electrode units are stacked in the second direction.

公开(公告)号：US20200212379A1

公开(公告)日：2020-07-02

申请号：US16817289

申请日：2020-03-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongyang SHI ,  Yuanbao Chen ,  Ning Chen ,  Haizu Jin ,  Zhenhua Li ,  Fei Hu

IPC: H01M2/04 ,  H01M2/26 ,  H01M2/06 ,  H01M10/0525

Abstract: The present disclosure provides a secondary battery and a battery module. The secondary battery includes an electrode assembly, a case and a cap assembly. The case has an accommodating cavity, and the electrode assembly is accommodated in the accommodating cavity. The electrode assembly comprises electrode units stacked in an axial direction of the accommodating cavity. The cap assembly comprises a cap plate and a vent piece, the cap plate is connected with the case and positioned at a side of the electrode assembly in the axial direction. The cap plate is provided with a through-hole, and the vent piece covers the through-hole. The cap plate has a first inner surface, the vent piece has a second inner surface, and a distance between the first inner surface and the electrode assembly is larger than a distance between the second inner surface and the electrode assembly.

公开(公告)号：US11177539B2

公开(公告)日：2021-11-16

申请号：US17356565

申请日：2021-06-24

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuanbao Chen ,  Dongyang Shi ,  Ning Chen ,  Haizu Jin ,  Zhenhua Li ,  Fei Hu

IPC: H01M2/20 ,  H01M50/502 ,  H01M50/147 ,  H01M50/533 ,  H01M50/54 ,  H01M50/543 ,  H01M10/04 ,  H01M10/058 ,  H01M50/50 ,  H01M50/531 ,  H01M10/0525 ,  H01M50/538

Abstract: The present application relates to a current collector and a secondary battery. The current collector is used to electrically connect a pole and tab of a secondary battery, and comprises: a first sheet; a second sheet that is disposed to intersect the first sheet, the second sheet being used to electrically connect to the pole; a current collection unit, the current collection unit and the second sheet being disposed at two opposite sides of the first sheet in a first thickness direction thereof, and the first thickness direction thereof intersecting with a second thickness direction of the second sheet; the current collection unit comprises a first current collection sheet, the first current collection sheet is used to electrically connect to the tab, and the first current collection sheet is provided with a first connection terminal that is connected to the first sheet.

公开(公告)号：US20210328293A1

公开(公告)日：2021-10-21

申请号：US17362960

申请日：2021-06-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Ning Chen ,  Haizu Jin ,  Dongyang Shi ,  Zhenhua Li ,  Fei Hu ,  Yuanbao Chen

IPC: H01M50/171 ,  H01M50/54 ,  H01M50/533 ,  H01M50/209

Abstract: The present disclosure relates to a secondary battery and a battery module. The secondary battery includes a case including a receiving space with an opening; a cap assembly connected to the case and close the opening; an electrode assembly disposed in the receiving space and including two end faces opposite to each other in a first direction perpendicular to an axial direction of the receiving space, and tabs extending from the end faces and two or more electrode units stacked in the axial direction; and a current collecting unit, including a first piece extending in the axial direction and a first current collecting piece connected to the first piece, the tab extends in the first direction and is connected to the first current collecting piece, and a portion of the tab connected to the first current collecting piece and the first current collecting piece are stacked in the axial direction.

公开(公告)号：US11139540B2

公开(公告)日：2021-10-05

申请号：US16437932

申请日：2019-06-11

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Haizu Jin ,  Dongyang Shi ,  Zhenhua Li ,  Xingdi Chen ,  Ning Chen ,  Fei Hu

IPC: H01M50/54 ,  H01M50/20 ,  H01M50/147 ,  H01M10/04 ,  H01M10/0587

Abstract: The present disclosure relates to a battery module and a battery pack. The battery module comprises two or more secondary batteries arranged side by side in a first direction, each of which includes a case, an electrode assembly and a closing portion, wherein the case has a receiving hole comprising an opening and extending in a second direction, and the first direction intersects with the second direction, wherein the closing portion is sealingly connected with the case to close the opening, the electrode assembly is disposed in the receiving hole and includes two or more electrode units, the electrode unit includes a first electrode plate, a second electrode plate and a separator, and the two or more electrode units are stacked in the second direction.

公开(公告)号：US20210119290A1

公开(公告)日：2021-04-22

申请号：US17137122

申请日：2020-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongyang SHI ,  Haizu Jin ,  Rui Yang ,  Fei Hu ,  Peng Wang ,  Yuqun Zeng ,  Yongshou Lin

IPC: H01M50/183 ,  H01M50/10 ,  H01M50/20

Abstract: The present disclosure provides a battery pack and a vehicle. The battery pack comprises a battery module, a box assembly and a first adhesive member. The battery module comprises first batteries arranged sequentially in a horizontal direction. The first battery comprises an electrode assembly and a case, and the electrode assembly is received in the case. The electrode assembly comprises a first electrode plate, a second electrode plate and a separator. The box assembly has a connection portion, and the connection portion is positioned at a side of the battery module in the vertical direction. An outer surface of the case comprises a first surface, and the first surface is connected with the connection portion via the first adhesive member. An area A of the first surface and an elastic modulus B of the first adhesive member satisfy a relationship: 0.02 cm2/MPa≤A/B≤9 cm2/MPa.

公开(公告)号：US12176559B2

公开(公告)日：2024-12-24

申请号：US17419697

申请日：2019-03-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhenhua Li ,  Haizu Jin ,  Dongyang Shi ,  Ning Chen ,  Fei Hu ,  Yuanbao Chen

IPC: H01M50/213 ,  H01M10/04 ,  H01M50/209 ,  H01M50/264 ,  H01M50/289 ,  H01M50/291 ,  H01M50/293 ,  H01M50/502

Abstract: The present disclosure relates to the technical field of energy storage devices, and provides a battery cell assembly, a battery module, and a battery pack. The battery cell assembly includes: at least two battery cells and an insulation film. The at least two battery cells are stacked. Each battery cell includes an electrode assembly and a battery housing. The electrode assembly is accommodated in the battery housing. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate. The insulation film surrounds a periphery of the at least two battery cells to wrap the at least two battery cells together.

公开(公告)号：US11664555B2

公开(公告)日：2023-05-30

申请号：US17135918

申请日：2020-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongyang Shi ,  Zhenhua Li ,  Haizu Jin ,  Ning Chen ,  Fei Hu ,  Yuanbao Chen ,  Rui Yang

IPC: H01M50/271 ,  B60L50/64 ,  H01M50/249 ,  H01M50/296 ,  H01M50/342 ,  H01M50/204 ,  H01M50/593 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/15 ,  H01M10/04 ,  H01M50/586 ,  H01M50/55 ,  H01M50/276 ,  H01M50/224 ,  H01M50/209

CPC classification number: H01M50/271 ,  B60L50/64 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/15 ,  H01M50/204 ,  H01M50/249 ,  H01M50/296 ,  H01M50/3425 ,  H01M50/55 ,  H01M50/586 ,  H01M50/593 ,  H01M50/209 ,  H01M50/224 ,  H01M50/276 ,  H01M2200/20 ,  H01M2220/20

Abstract: Disclosed are a secondary battery, a battery module and an electric vehicle. The secondary battery includes an electrode assembly, a housing and a top cover assembly. The housing has an accommodating chamber, the accommodating chamber having an opening, and the electrode assembly being accommodated in the accommodating chamber. The electrode assembly includes a plurality of electrode units, the plurality of electrode units being stacked in an axial direction of the accommodating chamber. The top cover assembly includes a top cover plate, a first electrode terminal and a second electrode terminal, the top cover plate being connected to the housing and located on a side of the electrode assembly in the axial direction, and the first electrode terminal and the second electrode terminal both protruding from the top cover plate and being electrically connected to the electrode assembly.

公开(公告)号：US11532857B2

公开(公告)日：2022-12-20

申请号：US17139814

申请日：2020-12-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kaijie You ,  Linggang Zhou ,  Dongyang Shi ,  Yanhuo Xiang ,  Yongshou Lin ,  Fei Hu

IPC: H01M50/507 ,  H01M50/244 ,  H01M50/547 ,  H01M50/207 ,  H01M50/342 ,  H01M10/0587

Abstract: The present disclosure provides a battery module, including a first battery cell arrangement structure, a second battery cell arrangement structure and a bus bar array. With battery cells stacked in a horizontal direction, a first battery cell arrangement structure and a second battery cell arrangement structure are stacked in a vertical direction, and a first bus bar of a bus bar array is used to sequentially connect the battery cells of the first battery cell arrangement structure and the second battery cell arrangement structure. As a result, a total positive electrode and a total negative electrode of a battery module are located at two ends of the battery module, which greatly reduces the possibility of a short circuit of the battery module and improves the safety of the battery module.