公开(公告)号：US20240282973A1

公开(公告)日：2024-08-22

申请号：US18638670

申请日：2024-04-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lan XIE ,  Zhen LIN ,  Shiliang LIN ,  Xiaohui WU ,  Long WANG ,  Wei LI ,  Zhonghong LI ,  Kai WU

IPC: H01M4/62 ,  H01M4/02 ,  H01M10/0587

CPC classification number: H01M4/628 ,  H01M10/0587 ,  H01M2004/021 ,  H01M2004/028

Abstract: A positive electrode sheet has a straight portion and to-be-bent portions, A thickening layer is disposed on at least one side of a positive electrode current collector of at least some of the to-be-bent portions, the thickening layer is disposed between the positive electrode current collector and a positive electrode active material layer, the positive electrode active material layer covers a surface of the thickening layer is a first positive electrode active material layer, and the positive electrode active material layer located in the straight portion is a second positive electrode active material layer. A ratio of a thickness of the first positive electrode active material layer to a thickness of the second positive electrode active material layer is 20-80%.

公开(公告)号：US20230391167A1

公开(公告)日：2023-12-07

申请号：US18453150

申请日：2023-08-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yao LIU ,  Yu ZHAO ,  Zhengzhu ZHOU ,  Liwen JIANG ,  Kai WU

IPC: B60H1/32

CPC classification number: B60H1/32331 ,  B60H1/3227

Abstract: A heat exchanger for a vehicular air conditioning system is disclosed. The heat changer includes a heat exchanger body, a water storage tank, and a condensate water circulating device. The heat exchanger body is provided with an air-inlet side and an air-outlet side. The air-inlet side is configured to enable an external air flow to enter the heat exchanger body, so that the air flow conducts heat exchange with a refrigerant in the heat exchanger body. The air-outlet side is configured to exhaust the air flow completing heat exchange with the refrigerant. The water storage tank is arranged below the heat exchanger body and is configured to store condensate water formed on the heat exchanger body. The condensate water circulating device is configured to transport cold water in the water storage tank to the air-inlet side of the heat exchanger body for heat exchange with the heat exchanger body.

公开(公告)号：US20230216316A1

公开(公告)日：2023-07-06

申请号：US18111895

申请日：2023-02-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiangtao LI ,  Bao LI ,  Kai WU

IPC: H02J7/00 ,  H01M10/48 ,  H01M10/42

CPC classification number: H02J7/0024 ,  H02J7/0036 ,  H01M10/48 ,  H01M10/425 ,  H02J7/00712 ,  H01M2220/20

Abstract: Embodiments of this application provide a battery control circuitry, a battery control method, and an electric apparatus. The battery control circuitry may include a charging interface, a switch circuit, a first battery pack; a second battery pack, where a positive electrode of the second battery pack may be connected to a negative electrode of the first battery pack; and a control circuit, configured to: when detecting that the charging interface receives a charging signal from a low-voltage platform, control the switch circuit to switch to a first connection state, where in the first connection state, a target battery pack may be connected in series to the charging interface to form a first loop, so as to charge the target battery pack, where the target battery pack may be the first battery pack or the second battery pack.

公开(公告)号：US20220013849A1

公开(公告)日：2022-01-13

申请号：US17123092

申请日：2020-12-15

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun ZENG ,  Pengcheng YAO ,  Zhimin ZENG ,  Kai WU ,  Xingdi CHEN ,  Peng WANG ,  Xiaobo CHEN

IPC: H01M50/30 ,  H01M10/42 ,  H01M10/613 ,  H01M10/647 ,  H01M10/6567 ,  H01M50/249 ,  H01M50/271 ,  H01M50/618

Abstract: The present application discloses a battery, and a related device, preparation apparatus thereof. The battery includes a battery cell, the battery cell including a pressure relief mechanism and at least two walls, the at least two walls including a first wall and a second wall that intersect with each other, the pressure relief mechanism being disposed at the first wall and being configured to, when an internal pressure or temperature of the battery cell reaches a threshold, be actuated to release the internal pressure; a thermal management component attached to the first wall and being configured to accommodate a fluid to cool the battery cell; and a support component attached to the second wall, and configured to support the battery cell; wherein the thermal management component is configured such that when the pressure relief mechanism is actuated, emissions discharged from the battery cell pass through the thermal management component.

公开(公告)号：US20220013757A1

公开(公告)日：2022-01-13

申请号：US17113034

申请日：2020-12-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kai WU ,  Wei WANG ,  Yuepan HOU ,  Peng WANG ,  Xiaobo CHEN ,  Yao LI ,  Yongshou LIN

IPC: H01M2/12 ,  H01M10/6567 ,  H01M10/6554 ,  H01M2/10

Abstract: Embodiments of the present application provide a battery, a power consumption device, a method and device for preparing a battery. The battery includes: a battery cell including a pressure relief mechanism, the pressure relief mechanism being disposed at a first wall of the battery cell; and a thermal management component configured to accommodate a fluid to adjust a temperature of the battery cell; where a first surface of the thermal management component is attached to the first wall of the battery cell, the thermal management component is configured to be capable of being damaged by emissions discharged from the battery cell when the pressure relief mechanism is actuated, such that the emissions pass through the thermal management component. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

公开(公告)号：US20210199706A1

公开(公告)日：2021-07-01

申请号：US17204260

申请日：2021-03-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun ZENG ,  Kai WU ,  Jirong HUO ,  Le CHU ,  Yanhui FU ,  Qiandeng LI

IPC: G01R31/00 ,  H02H1/00

Abstract: Disclosed are a load state detection circuit and method. A microcontroller is connected to a switch unit which is connected between a detecting power supply and a load to be tested. A voltage sampling point is formed at either terminal of the load to be tested, and the voltage sampling circuit is connected between the voltage sampling point and the microcontroller. The voltage sampling circuit is configured to sample a voltage at the voltage sampling point. The microcontroller is configured to connect the load to be tested and the detecting power supply by controlling the switch unit, and determine whether a fault exists in the load to be tested according to a received voltage at the voltage sampling point sampled by the voltage sampling circuit, before connecting the load to be tested with the drive power supply.

公开(公告)号：US20200089304A1

公开(公告)日：2020-03-19

申请号：US16357552

申请日：2019-03-19

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuqun ZENG ,  Kai WU ,  Le CHU ,  Jianwei ZHUO ,  Qiandeng LI

IPC: G06F1/3225 ,  G06F1/30 ,  G06F1/26 ,  G06F1/3234

Abstract: The present application provides a power-down detection circuit and a control method. A low-voltage side power supply is connected to provide an output voltage of the low-voltage side power supply to a power-down detection sub-circuit and provide a standard supply voltage to the power-down detection sub-circuit, a controller and a memory via a voltage conversion circuit. The power-down detection sub-circuit is configured to obtain the output voltage of the low-voltage side power supply, and determine, according to the output voltage of the low-voltage side power supply, whether a power-down event occurs in the low-voltage side power supply. If it is determined that a power-down event occurs, a power-down signal is sent to the controller. The controller receives the power-down signal, and controls the memory to record current information of a high voltage bus sensed by a high-voltage side current sensor.

公开(公告)号：US20200088799A1

公开(公告)日：2020-03-19

申请号：US16357563

申请日：2019-03-19

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuqun ZENG ,  Kai WU ,  Guoxiu WU ,  Shushuai HU ,  Qiandeng LI ,  Yanhui FU

IPC: G01R31/36 ,  H01M2/10 ,  H01M10/42 ,  G01R31/382

Abstract: The present disclosure relates to a sampling assembly and a battery pack. The assembly comprises: a circuit board comprising a sampling unit; a first detector comprising a first and second connecting ends arranged at interval, wherein the first detector is connected to the circuit board via the first and second connecting ends to transmit information on first voltage between the first and second connecting ends to the circuit board, and the first detector is connectable in series to and between the two terminals to be detected; and a second detector located in a magnetic field generated by current flowing through the first detector and can generate information on second voltage according to the magnetic field, wherein the second detector comprises an output terminal and is connectable to the circuit board via the output terminal to transmit the information on second voltage to the sampling unit.

公开(公告)号：US20180233716A1

公开(公告)日：2018-08-16

申请号：US15649953

申请日：2017-07-14

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Baisong CHEN ,  Peng WANG ,  Kai WU ,  Zhiyu WANG ,  Xiaobo CHEN

IPC: H01M2/04 ,  H01M10/02 ,  H01M10/04

CPC classification number: H01M2/0456 ,  H01M2/0404 ,  H01M2/0426 ,  H01M2/043 ,  H01M2/0443 ,  H01M2/0478 ,  H01M2/345 ,  H01M2/348 ,  H01M10/02 ,  H01M10/04 ,  H01M2200/103 ,  H01M2200/20

Abstract: A cap structure of a power battery includes first and second electrode components, a cap plate attached to the first and second electrode components, and a turnable plate connected to the second electrode component. The first electrode component is electrically isolated from the cap plate and includes a first terminal and a first connecting block. The first connecting block is located above the cap plate and includes a terminal connecting portion, a fusing portion, and a turnable plate connecting portion. In case that an internal pressure of the power battery exceeds a reference pressure, the turnable plate is turned over and in contact with the turnable plate connecting portion, such that the first terminal is electrically connected to the second electrode component.

公开(公告)号：US20170237059A1

公开(公告)日：2017-08-17

申请号：US15586051

申请日：2017-05-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quankun LI ,  Kai WU ,  Pinghua DENG ,  Xiaobo CHEN

IPC: H01M2/34 ,  H01M2/30 ,  H01M2/04

Abstract: A power battery cap structure and a power battery are provided. The power battery cap structure includes a first terminal, a second terminal and a cap assembly; the second terminal is electrically insulated from the cap assembly. The power battery cap structure further includes a resistance which electrically connects the first terminal with the cap assembly. The cap assembly includes a cap sheet, a first short circuit part and a second short circuit part; the first and second short circuit part are attached to the cap sheet, when internal pressure of the power battery exceeds predetermined threshold, the first and second short circuit part act and form a first path passing through the first terminal, the second short circuit part, the resistance and the second terminal, and a second path passing through the first terminal, the first and second short circuit part and the second terminal.