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：US20190221821A1

公开(公告)日：2019-07-18

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: H01M2/26 ,  H01M10/058 ,  H01M2/20 ,  H01M2/30 ,  H01M10/04

CPC classification number: H01M2/26 ,  H01M2/20 ,  H01M2/202 ,  H01M2/30 ,  H01M10/0436 ,  H01M10/049 ,  H01M10/0525 ,  H01M10/058

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：US20190221790A1

公开(公告)日：2019-07-18

申请号：US16107005

申请日：2018-08-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chengyou XING

IPC: H01M2/04 ,  H01M2/30 ,  H01M2/12

CPC classification number: H01M2/0482 ,  H01M2/04 ,  H01M2/12 ,  H01M2/1235 ,  H01M2/1294 ,  H01M2/20 ,  H01M2/30 ,  H01M10/0525 ,  H01M2200/20 ,  H01M2220/20 ,  Y02E60/122

Abstract: The present disclosure provides secondary battery top cover assembly, secondary battery and vehicle. The top cover assembly includes: a top cover plate; an electrode terminal disposed on the top cover plate; an insulating cover; and a short-circuit component including a deformable plate and a conductive plate disposed above the deformable plate, the deformable plate is connected to the top cover plate, and the conductive plate is connected to the electrode terminal. The conductive plate includes a body portion and a protruding portion protruding upwardly from the body portion, and is provided with gas hole, and the protruding portion surrounds the gas hole. The insulating cover includes a covering portion disposed above the conductive plate and covering the protruding portion, a gas flow channel is formed between the protruding portion and the covering portion, and the gas hole communicates with outside of the top cover plate via the gas flow channel.

公开(公告)号：US20190221789A1

公开(公告)日：2019-07-18

申请号：US16360288

申请日：2019-03-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chengyou XING ,  Jian GUO

IPC: H01M2/04 ,  H01M10/0525 ,  H01M2/30 ,  H01M2/26 ,  B60L50/64 ,  B60L3/00 ,  H01M2/34

CPC classification number: H01M2/0413 ,  B60L3/0046 ,  B60L50/64 ,  H01M2/0417 ,  H01M2/043 ,  H01M2/0443 ,  H01M2/0456 ,  H01M2/0473 ,  H01M2/0482 ,  H01M2/26 ,  H01M2/30 ,  H01M2/345 ,  H01M10/0525 ,  H01M2200/20 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011 ,  Y02T10/705 ,  Y02T90/16

Abstract: Provided is a top cover structure for power battery, including a first electrode assembly, a second electrode assembly, a top cover plate electrically connected with the first electrode assembly, and a deformable plate attached to the top cover plate; the second electrode assembly includes a second electrode terminal, a second connecting block, a second insulating piece in which a via-hole and an gas-guide hole are defined, an upper sealing piece arranged between the second insulating piece and the second connecting block and including a sealing area for deforming space and a sealing area for electrode terminal, and a lower sealing piece arranged between the second insulating piece and the top cover plate and enclosing the via-hole for deformable plate. The sealing area for deforming space encloses the via-hole and the gas-guide hole, the sealing area for electrode terminal enclose the second electrode terminal.

公开(公告)号：US20190214619A1

公开(公告)日：2019-07-11

申请号：US16058510

申请日：2018-08-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiang LI ,  Peng Wang ,  Chengyou XING ,  Rulai Cai

IPC: H01M2/12 ,  H01M10/0525

CPC classification number: H01M2/1241 ,  H01M2/12 ,  H01M10/0525 ,  H01M2220/20

Abstract: The present disclosure relates to a vent for a secondary battery top cover, a top cover assembly, a secondary battery and a vehicle. The vent includes a flat base and a protrusion protruding outward with respect to flat base. The protrusion has a main nick and at least one branch nick connected to at least one end of the main nick. An angle formed between the main nick and the branch nick is more than zero. When the pressure inside the case increases excessively, gas causes stress concentration at the protrusion such that the vent is torn along the main nick and the at least one branch nick, thereby releasing the gas in the case, reducing explosion risk of the secondary battery, and improving safety of the secondary battery.

公开(公告)号：US20190157684A1

公开(公告)日：2019-05-23

申请号：US16008286

申请日：2018-06-14

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengyou XING ,  Xiang LI ,  Taosheng ZHU ,  Peng Wang ,  Yulian ZHENG

IPC: H01M4/70 ,  H01M4/13

Abstract: The present disclosure relates to the technical field of rechargeable battery and, particularly, relates to an electrode member, an electrode assembly and a rechargeable battery. The electrode member includes an electrode body and a conduction structure, the electrode body comprises an insulation substrate and an conduction layer placed on a surface of the insulation substrate, the conduction layer includes a first portion and a second portion extending from the first portion, the first portion is coated with an active material while the second portion is not coated with the active material, and the conduction structure is connected to the second portion. After the electrode assembly is formed by winding or stacking of the electrode members, adjacent current guide portions are electrically connected to one another by the conduction structure, without being limited by the insulation substrate, so that the conductivity of the electrode member is effectively improved.

公开(公告)号：US20190157656A1

公开(公告)日：2019-05-23

申请号：US15971642

申请日：2018-05-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiang LI ,  Chengyou XING ,  Peng WANG ,  Rulai CAI

IPC: H01M4/13 ,  H01M10/0525 ,  H01M4/70

Abstract: The present invention relates to the technical field of rechargeable batteries and, in particular, to an electrode member, an electrode assembly and a rechargeable battery. The electrode member of the present invention includes an electrode body. The electrode body includes an insulating base and a conductive layer disposed on a surface of the insulating base. The conductive layer has a first portion and a second portion extending from the first portion, the first portion is adapted to be coated with an active material and the second portion is uncoated with the active material. A portion of the insulating base corresponding to the second portion is provided with a first through-hole throughout a thickness direction.

公开(公告)号：US20190109302A1

公开(公告)日：2019-04-11

申请号：US15874508

申请日：2018-01-18

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yulian ZHENG ,  Chengyou XING ,  Quankun LI ,  Peng WANG ,  Lulu BAI

IPC: H01M2/02 ,  H01M2/06 ,  H01M2/30

Abstract: The present disclosure provides a cap assembly for a secondary battery and a secondary battery. The cap assembly for the secondary battery includes a cap plate, a fixing member, a connecting member, an electrode terminal and a reinforcing portion, wherein the cap plate has an electrode lead-out hole; the fixing member is fixed to the cap plate through the connecting member; the electrode terminal comprises a terminal board, wherein the terminal board has an outer peripheral surface at least partially surrounded by the fixing member so that the electrode terminal is fixed to the fixing member, and the terminal board is provided on a side of the cap plate and covers the electrode lead-out hole; and the reinforcing portion is fixed to the cap plate, and extends along a width direction of the cap plate.

公开(公告)号：US20180366694A1

公开(公告)日：2018-12-20

申请号：US15873512

申请日：2018-01-17

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhixian LIU ,  Peng WANG ,  Zhijun GUO ,  Shoujun HUANG ,  Chengyou XING

IPC: H01M2/04 ,  H01M2/08 ,  H01M2/06 ,  H01M2/30 ,  H01M2/02 ,  H01M2/12

Abstract: The present disclosure provides a cap assembly for a power battery, a power battery and a battery module. The cap assembly for a power battery includes a cap plate; a first electrode terminal and a second electrode terminal. The first electrode terminal includes a first pole and a first terminal board. The first terminal board includes a first connecting board and a first conductive board. The first conductive board exposes from a side of the first connecting board away from the cap plate. The first conductive board is connected with the first pole and the first connecting board. The second electrode terminal is disposed at the other end of the cap plate in length direction and insulated from the first electrode terminal.

公开(公告)号：US20180159108A1

公开(公告)日：2018-06-07

申请号：US15816975

申请日：2017-11-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yulian ZHENG ,  Chengyou XING ,  Zhijun GUO ,  Peng WANG

IPC: H01M2/26 ,  H01M2/02

CPC classification number: H01M2/26 ,  H01M2/0217 ,  H01M2/0277 ,  H01M2/04 ,  H01M2/06 ,  H01M2/345 ,  H01M2200/00

Abstract: The present disclosure provides a secondary battery which comprises: a cap plate provided with a first electrode terminal and a second electrode terminal; an electrode assembly comprising a main body, a first electrode tab provided to the main body and a second electrode tab provided to the main body; a first connecting piece connected between the first electrode tab and the first electrode terminal. The second electrode tab is connected with the second electrode terminal. The first electrode tab includes a first connecting portion welded with the first connecting piece and a first bending portion bent downwardly and connected between the main body of the electrode assembly and the first connecting portion. A first insulating adhesive is adhered on weld zones which are formed during welding of the first connecting portion and the first connecting piece and face the main body of the electrode assembly.