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    BATTERY, ELECTRIC DEVICE, MANUFACTURING METHOD AND MANUFACTURING SYSTEM FOR BATTERY
    1.
    发明申请
    BATTERY, ELECTRIC DEVICE, MANUFACTURING METHOD AND MANUFACTURING SYSTEM FOR BATTERY 有权

    公开(公告)号：US20230050668A1

    公开(公告)日：2023-02-16

    申请号：US17976744

    申请日：2022-10-28

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Yuqun ZENG ,  Liwen JIANG ,  Wumei FANG

    IPC: H01M50/367 ,  H01M50/143 ,  H01M50/169 ,  H01M50/578 ,  H01M50/581

    Abstract: This disclosure provides to a battery, an electric device, a manufacturing method and a manufacturing system for the battery. The battery includes a battery module, a casing, and a flow guide member. The battery module includes an explosion-proof assembly. The casing accommodates the battery module. The casing includes a gas discharge passage. The gas discharge passage includes a gas inlet and a gas outlet. The flow guide member is disposed inside the casing and shields the explosion-proof assembly to form a gas guide passage. The gas guide passage is in communication with the gas inlet, for guiding gas generated by the battery module to an exterior of the casing through the gas outlet after the explosion-proof assembly is destroyed. This disclosure intends to solve the technical problem of use safety of the battery being seriously affected due to the battery being prone to catching fire quickly and then exploding.

    BATTERY, POWER CONSUMPTION DEVICE, METHOD AND DEVICE FOR PREPARING A BATTERY
    2.
    发明申请
    BATTERY, POWER CONSUMPTION DEVICE, METHOD AND DEVICE FOR PREPARING A BATTERY 有权

    公开(公告)号：US20220013853A1

    公开(公告)日：2022-01-13

    申请号：US17113038

    申请日：2020-12-05

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Yuqun ZENG ,  Xiaobo CHEN ,  Peng WANG ,  Yao LI ,  Yongshou LIN

    IPC: H01M50/342 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M50/204

    Abstract: Embodiments of the present application provide a battery. The battery includes: a battery cell comprising a pressure relief mechanism, the pressure relief mechanism being arranged in a first wall of the battery cell and the pressure relief mechanism being configured, when an internal pressure or temperature of the battery cell reaches a threshold, to be actuated to release the internal pressure; and a thermal management component for containing a fluid to adjust the temperature of the battery cell; wherein a first surface of the thermal management component is attached to the first wall, and the thermal management component is configured to be capable of being damaged when the pressure relief mechanism is actuated, so that the fluid is discharged from inside of the thermal management component. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

    PRESSURE RELIEF MECHANISM, BATTERY BOX, BATTERY CELL, BATTERY, PREPARATION METHOD AND APPARATUS
    3.
    发明申请
    PRESSURE RELIEF MECHANISM, BATTERY BOX, BATTERY CELL, BATTERY, PREPARATION METHOD AND APPARATUS 有权

    公开(公告)号：US20220013851A1

    公开(公告)日：2022-01-13

    申请号：US15734545

    申请日：2020-07-10

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Yuqun ZENG ,  Jianxiong YANG ,  Peng WANG ,  Zhijun GUO ,  Quankun LI ,  Zhanyu SUN

    IPC: H01M50/317 ,  H01M50/209 ,  H01M50/147 ,  H01M50/531

    Abstract: The present application discloses a pressure relief mechanism, a battery cell and a battery. The pressure relief mechanism includes: a connecting mechanism including an aperture and a first boss, the first boss being connected to an inner wall of the aperture and extending toward an axis of the aperture; a pressure relief sheet for being actuated to release an internal pressure of the battery box when the internal pressure reaches a threshold and being arranged on a side of the first boss; a first protective sheet used to protect the pressure relief sheet and arranged on the other side of the first boss away from the pressure relief sheet; a compression ring arranged on a side of the first protective sheet away from the first boss; and a pressing structure connected to the connecting mechanism and being capable of being pressed toward the axis of the aperture.

    LOAD STATE DETECTION CIRCUIT AND METHOD
    5.
    发明申请
    LOAD STATE DETECTION CIRCUIT AND METHOD 有权

    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.

    POWER-DOWN DETECTION CIRCUIT AND CONTROL METHOD
    6.
    发明申请
    POWER-DOWN DETECTION CIRCUIT AND CONTROL METHOD 审中-公开

    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.

    SAMPLING ASSEMBLY AND BATTERY PACK
    7.
    发明申请
    SAMPLING ASSEMBLY AND BATTERY PACK 审中-公开

    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.

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