公开(公告)号：US20210359379A1

公开(公告)日：2021-11-18

申请号：US17059076

申请日：2020-08-10

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuanbao CHEN ,  Quankun LI ,  Peng WANG ,  Lingyan JIANG

IPC: H01M50/533 ,  H01M50/645 ,  H01M50/591 ,  H01M50/152 ,  H01M50/543

Abstract: The present application relates to the field of batteries, in particular to a battery, a battery module and an electric equipment. The battery of the present application includes: a connection member, including a first connection portion configured to be electrically connected with an electrode assembly and a second connection portion configured to be electrically connected with an electrode terminal, and the first connection portion is in a folded state along a crease relative to the second connection portion; the crease is arranged between a first end face and a second end face of the first connection portion; and when the connection member is in an expanded state, the second end face and the first end face are arranged along a length direction.

公开(公告)号：US20210320370A1

公开(公告)日：2021-10-14

申请号：US17355761

申请日：2021-06-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yu TANG ,  Linggang ZHOU ,  Ziyuan LI ,  Peng WANG ,  Kaijie YOU ,  Xingdi CHEN

IPC: H01M50/262 ,  H01M50/209 ,  H01M10/04 ,  H01M50/502

Abstract: The present application provides a battery module, which includes a plurality of batteries, an end plate and an output electrode connecting sheet. The plurality of batteries are arranged in a longitudinal direction. The end plate has: a main body portion, located on one side of the plurality of batteries in the longitudinal direction; and an extension portion, formed on the main body portion and extending in the longitudinal direction away from the batteries. The output electrode connecting sheet has: a first connecting portion, connected to a corresponding battery; and a second connecting portion, connected to one end of the first connecting portion and fixed to the extension portion of the end plate.

公开(公告)号：US20210320359A1

公开(公告)日：2021-10-14

申请号：US17356653

申请日：2021-06-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kaijie YOU ,  Xingdi CHEN ,  Yanhuo XIANG ,  Fenggang ZHAO ,  Linggang ZHOU ,  Peng WANG

IPC: H01M50/209 ,  H01M50/543

Abstract: The present application is provided with a battery pack, including a first battery module, a second battery module and a box body, where the first battery module and the second battery module are housed in the box body; the box body including a lower box body configured to support the first battery module and the second battery module, and an upper box body fitting with the lower box body. The lower box body includes a first connecting portion, and the first connecting portion is located between the first battery module and the second battery module. The upper box body includes a second connecting portion, where the first connecting portion and the second connecting portion are fixed and connected. In the battery pack of the present application, the problem of downward deflection of the lower box body is avoided and the strength of the battery pack is improved.

公开(公告)号：US20210320357A1

公开(公告)日：2021-10-14

申请号：US17358037

申请日：2021-06-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Lei WANG ,  Linggang ZHOU ,  Xingdi CHEN ,  Peng WANG ,  Derong WANG

IPC: H01M50/20 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M10/6556 ,  B60K1/04

Abstract: The present disclosure relates to a casing for a battery pack and a battery pack. The casing has a receiving space and an opening in communication with the receiving space, the receiving space is formed by a wall portion of the casing, and the wall portion is formed from two or more stacked base plates, between which a plurality of cavities are formed. By forming a plurality of cavities in the wall portion, the casing for a battery pack provided by the present disclosure not only can improve the bearing capacity and the impact resistance of the casing, but also can achieve a thermal management of the battery assembly by filling the plurality of cavities with a phase change material or cooling liquid, which can further improve the mechanical property of the casing with a relatively light weight and relatively high reliability.

公开(公告)号：US20210249723A1

公开(公告)日：2021-08-12

申请号：US16977780

申请日：2019-11-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yulian ZHENG ,  Xiaoping ZHANG ,  Peng WANG ,  Zhanyu SUN

IPC: H01M50/204 ,  H01M50/148 ,  H01M50/183 ,  H01M50/543 ,  H01M50/593

Abstract: The present disclosure provides a battery cell, a battery module, a battery pack, a device using the battery cell as a power source, and an assembling method of the battery cell, wherein the battery cell comprising an electrode assembly (20) and an insulating support plate (50), the electrode assembly (20) comprises a main body portion (22) and a tab (21) connected to the main body portion (22), the insulating support plate (50) comprises a first support portion (51) and a second support portion (52) connected to the first support portion (51), the first support portion (51) protrudes in a direction approaching the main body portion (22) relative to the second support portion (52) such that a first gap is formed between the second support portion (52) and the main body portion (22), and at least a portion of the tab (21) is located in the first gap. The first gap formed between the second support portion and the main body portion can accommodate at least a portion of the tab to effectively protect the tab, prevent the tab from being compressed, reduce damages to the tab, and increase the service life of the battery.

公开(公告)号：US20210234220A1

公开(公告)日：2021-07-29

申请号：US15733813

申请日：2020-04-17

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Shoujun HUANG ,  Baisong CHEN ,  Huasheng SU ,  Peng WANG

IPC: H01M50/171 ,  H01M50/591 ,  H01M50/183

Abstract: The top cover assembly provided in the present application includes a top cover plate, a sealing member and a lower insulting piece, the sealing member includes a first sealing part arranged on an upper surface of the top cover plate; the lower insulating member is provided with a first insulating part and a second insulating part which are connected with each other, the first insulating part is arranged below the top cover plate, the second insulating part extends upwards from the first insulating part and at least part of the second insulating part is arranged in an electrode lead-out hole of the top cover plate, one of the second insulating part and the sealing member is provided with a groove, and the other includes a first matching part, and the first matching part is embedded into the groove and is sealed with a bottom wall of the groove.

公开(公告)号：US20210167441A1

公开(公告)日：2021-06-03

申请号：US15734553

申请日：2020-05-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kaijie YOU ,  Yongguang WANG ,  Peng WANG ,  Linggang ZHOU ,  Xingdi CHEN

IPC: H01M10/6554 ,  H01M10/613 ,  H01M50/204 ,  H01M50/233 ,  H01M50/249

Abstract: The present application relates to a battery pack, a method for manufacturing a battery pack and a vehicle. The battery pack includes a case assembly including a case, a thermally conductive beam and a temperature control component, the thermally conductive beam being disposed in the case and connected to the case, and the temperature control component being disposed in a bottom region of the case; a thermally conductive cover connected to the thermally conductive beam and located above the thermally conductive beam along a height direction of the battery pack, where the thermally conductive cover, the case and the thermally conductive beam enclose and form a first chamber; and a plurality of battery cells integrally forming a battery assembly, the battery assembly being disposed in the first chamber and located above the temperature control component.

公开(公告)号：US20210119308A1

公开(公告)日：2021-04-22

申请号：US17138586

申请日：2020-12-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yulian ZHENG ,  Chengyou XING ,  Peng WANG ,  Guowei LI

IPC: H01M50/543 ,  H01M50/15 ,  H01M50/172

Abstract: The present disclosure provides a battery module, a secondary battery and a cap assembly thereof. The cap assembly includes a cap plate which is provided with a terminal hole and an electrode terminal provided to the cap plate and covering the terminal hole; the electrode terminal includes an outer surface; the electrode terminal includes a positioning hole which is recessed with respect to the outer surface and includes a first portion and a second portion, the second portion is positioned to a side of the first portion away from the outer surface; a section of the first portion parallel to a central axis of the positioning hole is trapezoidal; a size of the first portion gradually decreases in a direction of the first portion close to the second portion, and a minimum size of the first portion is greater than or equal to a size of the second portion.

公开(公告)号：US20210119300A1

公开(公告)日：2021-04-22

申请号：US17134012

申请日：2020-12-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quankun LI ,  Shiyao ZHANG ,  Peng WANG ,  Zhanyu SUN ,  Siying HUANG ,  Jinmei XU

IPC: H01M50/342 ,  H01M50/148

Abstract: This application relates to a cover assembly of a secondary battery. The cover assembly includes a cover plate with an air hole; a blocker inserted into and blocking the air hole; a sealing member disposed between the blocker and the cover plate configured to seal a gap between the blocker and the cover plate; and a fastener disposed inside the air hole. The fastener is connected to the cover plate, the blocker is connected to the cover plate through the fastener. The fastener is configured to deform in response to a temperature rise, so that the blocker stops blocking the air hole. The blocker stops blocking the air hole as a temperature inside a housing rises, to discharge gas from the housing through the air hole. In this way, the secondary battery can be prevented from an explosion, while partial heat is taken away through gas discharge.

公开(公告)号：US20210111458A1

公开(公告)日：2021-04-15

申请号：US17129629

申请日：2020-12-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xingdi CHEN ,  Yuepan HOU ,  Kaijie YOU ,  Linggang ZHOU ,  Peng WANG ,  Yanan PENG

IPC: H01M50/209 ,  H01M50/538 ,  H01M50/536 ,  H01M50/514

Abstract: This application relates to a battery module and a battery pack. The battery module includes a binding member and battery cell assemblies arranged along a horizontal direction, the battery cell assembly including an upper-layer battery cell and a lower-layer battery cell that are stacked along a vertical direction, the upper-layer battery cell and the lower-layer battery cell interconnected and forming a joint; and the binding member covering the joint, located between two adjacent battery cell assemblies, and fixed to the battery cell assemblies. The battery module includes a binding member and a plurality of battery cell assemblies, and the battery cell assembly includes upper-layer and a lower-layer battery cells stacked along a vertical direction. A joint is formed between the upper-layer and lower-layer battery cells and covered by the joint fixed to the battery cell assemblies, swelling of the upper-layer and lower-layer battery cells at the joint is reduced.