公开(公告)号：US11417935B2

公开(公告)日：2022-08-16

申请号：US16244504

申请日：2019-01-10

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengyou Xing ,  Yulian Zheng ,  Taosheng Zhu ,  Zhijun Guo ,  Peng Wang

IPC: H01M50/531 ,  H01M50/50 ,  H01M50/502 ,  H01M50/543 ,  H01M10/04 ,  H01M10/058 ,  H01M10/0525

Abstract: The present disclosure provides a component for collecting a current and a battery. The component for collecting a current comprises an introducing body and a connection body bendably arranged relative to the introducing body. The introducing body comprises a holding arrangement. The holding arrangement is used for fixing the introducing body when the connection body is bent. When the connection body is bent, an operator can use a clamping tool to fixedly clamp the holding arrangement arranged on the introducing body, so that the stress applied on the component for collecting a current can be transferred to the position of the clamping tool when the connection body is bent, thereby reducing the stress from damaging electrode assemblies.

公开(公告)号：US11417932B2

公开(公告)日：2022-08-16

申请号：US16856796

申请日：2020-04-23

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yu Tang ,  Yanbo Chen ,  Peng Wang ,  Kaijie You ,  Xingdi Chen ,  Yongguang Wang

IPC: H01M50/20 ,  H01M50/383 ,  H01M50/502 ,  H01M50/30

Abstract: A battery assembly includes a protection member and a battery module including at least two batteries arranged side by side along a first direction and having a first outer surface and a second outer surface opposite to each other along a second direction. The protection member is in the form of a letter U with two vertical portions having different lengths, wherein a first protection section covers the end covers of batteries in the battery module, a part of a second protection section covers the first outer surface, and a third protection section abuts against an end cover of a battery corresponding to the second outer surface. The protection member can prevent the airflow, the flame and the like sprayed during thermal runaway, and control a thermal diffusion range during thermal runaway.

公开(公告)号：US20220238945A1

公开(公告)日：2022-07-28

申请号：US17721384

申请日：2022-04-15

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Shoujun Huang ,  Xinxiang Chen ,  Yulian Zheng ,  Peng Wang

IPC: H01M50/15 ,  H01M50/186

Abstract: The present application provides an end cover assembly, a battery cell, a battery pack, apparatus and a liquid injection method. The end cover assembly includes an end cover plate, including a through hole for injecting electrolyte and a fixing portion arranged around the through hole; a nail body, including an accommodating portion for receiving the fixing portion. The accommodating portion is in a shape of annular and includes two inner walls arranged to be spaced apart from each other in a radial direction of the accommodating portion, and an inner wall and an outer wall of the fixing portion are respectively pressed against and engaged with the two inner walls of the accommodating portion to seal the through hole.

公开(公告)号：US11289762B2

公开(公告)日：2022-03-29

申请号：US16570257

申请日：2019-09-13

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xingdi Chen ,  Kaijie You ,  Linggang Zhou ,  Peng Wang ,  Yanhuo Xiang ,  Ning Chen

IPC: H01M50/20

Abstract: The disclosure relates to a battery pack, which can include an enclosure including an upper cover and a lower case in sealed connection, a plurality of battery modules is arranged in the enclosure, and a first bonding member disposed on the upper surface of the battery modules and intended for connecting the battery modules with the upper cover. The present disclosure can strengthen the connection strength between the upper cover and the battery modules, and improve the overall stiffness of the battery modules.

公开(公告)号：US20220085445A1

公开(公告)日：2022-03-17

申请号：US17535676

申请日：2021-11-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuyong LEI ,  Chengyou XING ,  Peng Wang ,  Jianxiong YANG ,  Lulu BAI ,  Qichang CAI

IPC: H01M50/15 ,  H01M50/55 ,  H01M50/553 ,  H01M50/564 ,  H01M50/166

Abstract: A secondary battery is disclosed, including: an electrode unit, including an electrode body and a tab extending from the electrode body, where the tab includes a first part and a second part that are spaced apart along a height direction of the secondary battery; and a top cover assembly, disposed on one side of the electrode body toward the tab, where the top cover assembly includes a top cover body and a hold-down beam, and a positioning bulge is disposed on a first surface of the top cover body toward the electrode unit, a positioning chute is disposed on the positioning bulge, and the hold-down beam is located between the first part and the second part, and is detachably disposed in the positioning chute.

公开(公告)号：US11239525B2

公开(公告)日：2022-02-01

申请号：US16838066

申请日：2020-04-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yu Tang ,  Yanbo Chen ,  Peng Wang ,  Kaijie You ,  Xingdi Chen

IPC: H01M50/20

Abstract: A battery pack includes a box body assembly including a box body and a plurality of fixing beams which are fixed in the box body and divide the internal space into a plurality of containing cavities, a plurality of battery modules correspondingly arranged in each containing cavity and a plurality of restraint components, each of which includes a limit part, a first mounting part and a second mounting part. Each limit part covers each battery module correspondingly. The first and second mounting part are connected on both sides of the limit part in the direction in which the plurality of fixing beams are arranged and fixed with the fixing beams on both sides of the corresponding battery module respectively; the first mounting part of one of adjacent restraint components and the second mounting part of the other are fixed on the same fixing beam and overlapped in a height direction.

公开(公告)号：US11196115B2

公开(公告)日：2021-12-07

申请号：US15976638

申请日：2018-05-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jie Zhang ,  Zhijun Guo ,  Zhiyi You ,  Peng Wang ,  Guowei Li ,  Taosheng Zhu

IPC: H01M2/04 ,  H01M2/02 ,  H01M50/15 ,  H01M50/116 ,  H01M50/147

Abstract: The present disclosure provides a cap plate and a secondary battery. The cap plate includes a main portion and a first protruding portion. The main portion includes a first exterior surface, a second exterior surface and a third exterior surface, the third exterior surface is a curved surface. The first protruding portion includes a fourth exterior surface extending downwardly from a bottom end of the third exterior surface, the fourth exterior surface is inclined inwardly relative to the third exterior surface. The secondary battery comprises the cap plate and a case. The case includes an opening; the cap plate is provided to the opening, the main portion is fixed to an inner wall of the case. The first protruding portion is received in the case, and a gap is provided between the fourth exterior surface and the inner wall, a dimension of the gap increases gradually along a downward direction.

公开(公告)号：US11183722B2

公开(公告)日：2021-11-23

申请号：US16413762

申请日：2019-05-16

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xinxiang Chen ,  Shoujun Huang ,  Chengyou Xing ,  Yulian Zheng ,  Peng Wang

IPC: H01M50/147 ,  H01M50/183 ,  H01M50/342 ,  H01M50/531 ,  H01M10/0525 ,  H01M50/543 ,  H01M50/578

Abstract: The present disclosure provides a secondary battery and a top cover assembly thereof. The top cover assembly includes: a top cover plate and a valve sleeve. The top cover plate includes an accommodation groove and a valve part protruding upward from a bottom wall of the accommodation groove, and the valve part is provided with at least one gas exhaust hole that communicates with an interior of the secondary battery. The valve sleeve is located in the accommodation groove and covers the valve part, a gas exhaust passage that communicates with outside is disposed between the valve sleeve and the valve part, and the gas exhaust passage communicates with the at least one gas exhaust hole.

公开(公告)号：US20210234175A1

公开(公告)日：2021-07-29

申请号：US17230988

申请日：2021-04-14

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuanbao CHEN ,  Quankun Li ,  Peng Wang

IPC: H01M4/70 ,  H01M10/04

Abstract: This application provides a current collecting member, a secondary battery, and a method for manufacturing a secondary battery. The current collecting member includes a substrate and a support plate, the substrate is disposed on a side of a body of the electrode assembly in the transverse direction and extends in a direction perpendicular to the transverse direction, the support plate extends from an outer end of the substrate in the longitudinal direction and folds back to a side of the substrate farther from the body. The support plate includes a bending portion and a connecting portion, the bending portion is connected to the substrate and bent into an arc shape, and the connecting portion extends from an end of the bending portion farther from the substrate; and a first tab of the electrode assembly is connected to the connecting portion and bent along a surface of the bending portion.

公开(公告)号：US20210135310A1

公开(公告)日：2021-05-06

申请号：US17128054

申请日：2020-12-19

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Shoujun Huang ,  Yuanbao Chen ,  Huasheng Su ,  Peng Wang

IPC: H01M50/148 ,  H01M10/0525 ,  H01M50/184 ,  H01M50/188 ,  H01M50/552 ,  H01M50/172

Abstract: The present application relates to a top cover assembly and a secondary battery. The top cover assembly includes: a top cover plate including a lead-out hole and an inside surface forming the lead-out hole; an electrode terminal including a cylindrical portion penetrating the lead-out hole and an annular flange, the annular flange extending beyond the inside surface along the lead-out hole; a sealing ring including a barrel portion and a ring portion, surrounding the cylindrical portion by the barrel portion. The ring portion includes a first ring body and a second ring body distributed in the radial direction; an insulating member including a connecting portion and an extension portion, and the connecting portion seals the second ring body; a portion of the insulating member beyond the second ring body forms the extension portion, and in the radial direction, the extension portion extends beyond the annular flange.