公开(公告)号：US20210043990A1

公开(公告)日：2021-02-11

申请号：US17078077

申请日：2020-10-22

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhimin DAN ,  Xiyang ZUO ,  Wei ZHANG ,  Yizhen HOU ,  Guowei LI ,  Xingyuan WU ,  Yanru LI

IPC: H01M10/63 ,  H01M10/615 ,  H01M10/625 ,  H01M10/42 ,  H01M10/48 ,  H02J7/00 ,  H02P3/18 ,  H02P27/06

Abstract: The present disclosure provides a battery heating system and a control method thereof. The battery heating system includes a main positive switch, a main negative switch, an inverter, a motor, and a battery management unit. The inverter includes a first phase bridge arm, a second phase bridge arm and a third phase bridge arm connected in parallel. A motor controller in the inverter is configured to output a drive signal to a target upper-bridge-arm switch unit and a target lower-bridge-arm switch unit, so as to control the target upper-bridge-arm switch unit and the target lower-bridge-arm switch unit to be periodically turned on and off. The battery management unit is configured to collect state parameters of the battery pack. When the state parameters of the battery pack meet preset heating conditions, a control signal is sent to the motor controller to control the motor controller to output the drive signal.

公开(公告)号：US20210387548A1

公开(公告)日：2021-12-16

申请号：US17458640

申请日：2021-08-27

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yanru LI ,  Xingyuan WU ,  Guowei LI ,  Wei ZHANG ,  Zhimin DAN ,  Xiyang zuo

IPC: B60L58/26 ,  H01M10/6568 ,  B60H1/00

Abstract: This application discloses a thermal management system for a battery pack and a thermal management system for an electric vehicle. the thermal management system for the battery pack includes: a thermal management device for the battery pack, a processor, and a solenoid valve network connected to the thermal management device for the battery pack. An external port of the solenoid valve network is connected to an external cooling system. The processor is configured to control operating status of a solenoid valve in the solenoid valve network, so that the thermal management device for the battery pack heats the battery pack by using heat generated by the external cooling system.

公开(公告)号：US20210245628A1

公开(公告)日：2021-08-12

申请号：US16972574

申请日：2019-01-22

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiyang ZUO ,  Zhimin DAN ,  Wei ZHANG ,  Yizhen HOU ,  Guowei LI ,  Xingyuan WU ,  Yanru LI

IPC: B60L58/27 ,  H02P27/08 ,  H02J7/00 ,  H01M10/615 ,  H01M10/63

Abstract: In a battery heating system an inverter includes a first-phase bridge arm, a second-phase bridge arm and a third-phase bridge arm connected in parallel, each of a upper bridge arm and a lower bridge arm is provided with a switch module, the switch module is connected in parallel with a buffer module; and a motor controller in the inverter is provided for providing driving signals to the switch module of a target upper bridge arm and the switch module of a target lower bridge arm to control the switch module of the upper bridge arm of any bridge arm among the three phases of bridge arms and the switch module of the lower bridge arm of at least one bridge arm among the bridge arms except the bridge arm where the switch module of the target upper bridge arm is located to be periodically turned on and off.

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：US20200212520A1

公开(公告)日：2020-07-02

申请号：US16297233

申请日：2019-03-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhimin DAN ,  Xiyang ZUO ,  Wei ZHANG ,  Yizhen HOU ,  Guowei LI ,  Xingyuan WU ,  Yanru LI

IPC: H01M10/63 ,  H02P3/18 ,  H02P27/06 ,  H02J7/00 ,  H01M10/42 ,  H01M10/615 ,  H01M10/48 ,  H01M10/625

Abstract: The present disclosure provides a battery heating system and a control method thereof. The battery heating system includes a main positive switch, a main negative switch, an inverter, a motor, and a battery management unit. The inverter includes a first phase bridge arm, a second phase bridge arm and a third phase bridge arm connected in parallel. A motor controller in the inverter is configured to output a drive signal to a target upper-bridge-arm switch unit and a target lower-bridge-arm switch unit, so as to control the target upper-bridge-arm switch unit and the target lower-bridge-arm switch unit to be periodically turned on and off. The battery management unit is configured to collect state parameters of the battery pack. When the state parameters of the battery pack meet preset heating conditions, a control signal is sent to the motor controller to control the motor controller to output the drive signal.

公开(公告)号：US20210234219A1

公开(公告)日：2021-07-29

申请号：US15733847

申请日：2020-03-24

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu LIANG ,  Kai WU ,  Xinxiang CHEN ,  Shoujun HUANG ,  Baisong CHEN ,  Huasheng SU ,  Guowei LI

IPC: H01M50/15 ,  H01M50/176 ,  H01M50/547 ,  H01M50/188 ,  H01M50/593 ,  H01M10/0525

Abstract: The present disclosure relates to a top cover assembly of a secondary battery and a secondary battery, wherein the top cover assembly includes a top cover plate, provided with a through hole; an electrode terminal, covering the through hole; an insulating plate, wherein at least part of the insulating plate is arranged on a side of the top cover plate away from the electrode terminal; a seal, wherein at least part of the seal is arranged between the top cover plate and the electrode terminal; and an insulator, wherein at least part of the insulator is arranged between the top cover plate and the insulating plate; wherein the insulator and the seal at least jointly enclose a side wall of the through hole and an area, close to the through hole, on an upper surface of the top cover plate.

公开(公告)号：US20200343522A1

公开(公告)日：2020-10-29

申请号：US16730854

申请日：2019-12-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M2/30 ,  H01M2/06 ,  H01M2/04

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：US20200207237A1

公开(公告)日：2020-07-02

申请号：US16370975

申请日：2019-03-30

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiyang ZUO ,  Zhimin DAN ,  Wei ZHANG ,  Yizhen HOU ,  Guowei LI ,  Xingyuan WU ,  Yanru LI

IPC: B60L58/27 ,  B60L50/51 ,  B60L58/12

Abstract: The disclosure provides a battery heating system and a control method thereof. The system includes a first switch, a second switch, a switch component, a motor, and a main controller. The first switch, the second switch, the switch component and the main controller are integrated in a same housing. The main controller is to determine, based on a state parameter of the battery pack, that the battery pack needs to be heated, and to send a battery heating request to a vehicle controller, so as to enable the vehicle controller to send a battery heating instruction to the main controller according to the battery heating request in a case where a vehicle is in a static state and the motor is not operating; and to control, based on the battery heating instruction, the first switch, the second switch and the switch component so as to heat the battery pack.

公开(公告)号：US20210074963A1

公开(公告)日：2021-03-11

申请号：US16965290

申请日：2018-04-17

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jie ZHANG ,  Zhijun GUO ,  Peng WANG ,  Guowei LI ,  Taosheng ZHU

IPC: H01M2/06 ,  H01M2/26 ,  H01M2/04 ,  H01M2/30

Abstract: A secondary battery including: a case including an opening; a top cover assembly including a top cover plate covering the opening and an electrode terminal, the top cover plate including an electrode lead-out hole corresponding to the electrode terminal; an electrode assembly received in the case and including a main body and a tab, the tab being bent relative to a thickness direction of the top cover plate to form a bent portion; and a current collecting wiring board disposed between the top cover plate and the main body and including a first connection portion, a second connection portion, and a transition portion, the first connection portion and the second connection portion extending along a width direction of the top cover plate and being provided opposite to each other, the first connection portion being connected with the electrode terminal, and the second connection portion being connected with the bent portion.

公开(公告)号：US20190326561A1

公开(公告)日：2019-10-24

申请号：US16135137

申请日：2018-09-19

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jie ZHANG ,  Xiaorong LIU ,  Zhijun GUO ,  Peng WANG ,  Guowei LI

IPC: H01M2/02 ,  H01M2/30 ,  H01M2/26 ,  H01M2/04

Abstract: The disclosure provides a secondary battery and a battery module. The secondary battery comprises: a case having an accommodation space and a first opening in communication with the accommodation space; an electrode component disposed in the accommodation space; a cover plate being installed at the first opening; wherein a connection slot is formed at a joint between the cover plate and the case, and the connection slot extends in a direction away from the accommodation space and throughout a top surface of the cover plate; and a first connection member being disposed in the connection slot, wherein the cover plate and the case are hermetically connected via the first connection member.