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1.发明公开公开(公告)号：US20240274999A1
公开(公告)日：2024-08-15
申请号：US18625105
申请日：2024-04-02
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Meng LI , Zhen Li , Zhixin Luo
IPC: H01M50/581 , H01M10/04 , H01M50/536
CPC classification number: H01M50/581 , H01M10/0404 , H01M50/536 , H01M2200/10
Abstract: Provided are a battery cell, a battery, an electrical apparatus, and a method and device for manufacturing a battery cell. The battery cell includes a case, an end cover, an electrode assembly and a solder, the case has an accommodating cavity and an opening at one end; the end cover is connected to the case; the electrode assembly is provided in the accommodating cavity, the electrode assembly has a first tab, and the first tab faces the opening; the solder is provided between the end cover and the first tab and connects the end cover and the first tab; an insulating member is also provided between the end cover and the first tab, an insulating cavity is provided on the insulating member, a feed port is provided on one side of the insulating cavity, and the feed port faces the solder.
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公开(公告)号：US20210231742A1
公开(公告)日：2021-07-29
申请号：US17051184
申请日：2020-01-15
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Meng LI , Zhimin DAN , Weiping SUN , Yizhen HOU , Wei ZHANG
IPC: G01R31/389 , G01R31/36 , G01R31/364
Abstract: The present application discloses an insulation detection circuit, a method and a battery management system. The circuit includes: a first voltage dividing module, where, one end of the first voltage dividing module is connected to a positive electrode of a power battery to be detected, and the other end of the first voltage dividing module is connected to a first isolation module and a second voltage dividing module respectively; the second voltage dividing module, connected to a negative electrode of the power battery to be detected; the first isolation module, connected to one end of a sampling module; the sampling module, where, the other end of the sampling module is connected to one end of a signal generating module; the signal generating module, where, the other end of the signal generating module is connected to power ground; and the processing module.
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公开(公告)号：US20240372131A1
公开(公告)日：2024-11-07
申请号：US18771744
申请日：2024-07-12
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
IPC: H01M10/04 , H01M50/586 , H01M50/595
Abstract: A guide and flattening mechanism includes a mounting seat having a support plane and an elastic guide assembly arranged at the mounting seat and having an inclined surface. The inclined surface is arranged around a central axis perpendicular to the support plane and is located on a side of the elastic guide assembly facing away from the support plane. From a side of the inclined surface close to the central axis to a side of the inclined surface away from the central axis, at least a part of the inclined surface is arranged obliquely in a direction away from the support plane. The inclined surface is configured to be elastically deformed in a direction approaching the support plane when being squeezed, so as to guide the bending of the to-be-flattened member and flatten the to-be-flattened member on the circular end surface with the cooperation of the support plane.
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4.发明公开公开(公告)号：US20230283162A1
公开(公告)日：2023-09-07
申请号：US18315893
申请日：2023-05-11
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qinyuan TIAN , Huanle ZHOU , Sigui ZHANG , Jinfeng GAO , Meng LI
CPC classification number: H02M1/0051 , H02M3/33515 , H02M1/0012 , H02M1/0009
Abstract: A control method includes determining an error value of a reverse input current of a phase-shifted full-bridge circuit based on sampling and reference values of the reverse input current, determining a compensation control quantity of a switch drive signal of the phase-shifted full-bridge circuit based on the error value. The compensation control quantity corresponds to a period or a duty cycle of the switch drive signal. The method further includes determining period and duty cycle control quantities of the switch drive signal based on the compensation control quantity. The period control quantity is within a value range of the period of the switch drive signal, and the duty cycle control quantity is within a value range of the duty cycle of the switch drive signal. The method also includes controlling the switch drive signal based on the period control quantity and the duty cycle control quantity.
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公开(公告)号：US20230308013A1
公开(公告)日：2023-09-28
申请号：US18325966
申请日：2023-05-30
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yuan YAO , Zhimin DAN , Meng LI , Yu YAN
CPC classification number: H02M1/44 , H02M3/33573 , H02M3/33576 , H02J7/007 , B60L53/31 , H02J2207/20
Abstract: A switching circuit includes a switching transistor, a metal unit, and a branch. The metal unit is provided at the switching transistor, and the branch is electrically connected between a ground and at least one of the switching transistor or between the metal unit. The branch includes a capacitor, and the capacitor is configured to discharge radiated interference.
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Patent Agency Ranking
公开(公告)号：US20210391736A1
公开(公告)日：2021-12-16
申请号：US15733803
申请日：2020-06-15
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Meng LI , Zhimin DAN , Yizhen HOU
IPC: H02J7/00 , H01M10/48 , H01M10/42 , H01M10/44 , H01M10/052
Abstract: The present disclosure provides a control device, an energy conversion system, an energy conversion method and a storage medium. The control device includes: a detection unit configured to detect a first voltage between a positive electrode of the energy storage device and a first end of an energy conversion device, a second voltage between a negative electrode of the energy storage device and a second end of the energy conversion device, and a third voltage between the positive electrode and the negative electrode of the energy storage device; a processing unit configured to calculate a resistance value corresponding to the energy conversion device according to the first voltage, the second voltage, and the third voltage; when the value of resistance is greater than a resistance threshold value, controlling the energy storage device to supply power to the electrical equipment through the energy conversion device.
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7.发明申请公开(公告)号：US20190234997A1
公开(公告)日：2019-08-01
申请号：US16233620
申请日：2018-12-27
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Zhimin DAN , Yizhen HOU , Weiping SUN , Meng LI , Wei ZHANG , Teng YU
CPC classification number: G01R27/205 , B60L3/0069 , B60L3/12 , B60L50/60 , G01R31/025 , H01H47/002 , H01M10/425 , H01M2010/4271
Abstract: Provided is a method and device for obtaining internal side and external side insulation resistances of a relay. The method comprises steps of: controlling the insulation resistance obtaining circuit to output a low-frequency AC signal; when both the main relay and the pre-charge relay are switched off, obtaining an internal side insulation resistance of the main relay according to the low-frequency AC signal; if the internal side insulation resistance of the main relay is normal, controlling the pre-charge relay to be switched on; and when the main relay is switched off and the pre-charge relay is switched on, obtaining an external side insulation resistance value of the main relay according to the low-frequency AC signal. Therefore, the present disclosure can obtain the internal side and external side insulation conditions of the main relay.
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8.发明公开公开(公告)号：US20240313310A1
公开(公告)日：2024-09-19
申请号：US18674604
申请日：2024-05-24
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yuqian WEN , Wei ZHANG , Meng LI , Wenqi ZHU , Qinglin BAI , Minghao TANG , Xiaowei ZHANG
IPC: H01M50/148 , H01M10/0525 , H01M10/0587 , H01M50/188 , H01M50/538
CPC classification number: H01M50/154 , H01M10/0525 , H01M10/0587 , H01M50/188 , H01M50/538
Abstract: A battery cell includes a housing having an opening, an end cap assembly for closing the opening and including an end cap body and an electrode terminal connected to the end cap body in an insulating manner, and an electrode assembly arranged in the housing and being of a wound structure and including: a wound main body, a first tab and a second tab, the first tab and the second tab having opposite polarities and being connected to the same side of the wound main body along a winding axis of the wound structure. The first tab is electrically connected to the electrode terminal, and the second tab is electrically connected to the end cap body.
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9.发明公开公开(公告)号：US20230291219A1
公开(公告)日：2023-09-14
申请号：US18320035
申请日：2023-05-18
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Zhanliang LI , Huanle ZHOU , Meng LI , Xiyang ZUO , Yu YAN , Zhimin DAN
CPC classification number: H02J7/0068 , H01M10/0404 , H01M10/446 , H02J2207/20
Abstract: A battery formation apparatus includes a DC-DC conversion module, an additional power supply, and a control circuit. Low-voltage and high-voltage terminals of the DC-DC conversion module are electrically connected to the control circuit and a DC bus, respectively. The DC-DC conversion module is configured to, when a battery unit discharges into the battery formation apparatus, convert a first voltage input into a second voltage greater than the first voltage, and output the second voltage. The additional power supply is electrically connected to the control circuit, and configured to output an additional voltage. The control circuit is electrically connected to the battery unit, the low-voltage terminal of the DC-DC conversion module, and the additional power supply. The control circuit is configured to serially connect the low-voltage terminal of the DC-DC conversion module, the battery unit, and the additional power supply when the battery unit discharges into the battery formation apparatus.
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10.发明公开公开(公告)号：US20230208181A1
公开(公告)日：2023-06-29
申请号：US17903853
申请日：2022-09-06
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Huaisen ZHANG , Yuan YAO , Meng LI , Weichen HE , Guiying LIN , Yu YAN
IPC: H02J7/00
CPC classification number: H02J7/007194 , H02J7/00032 , H02J7/00309 , H02J7/0013
Abstract: The present application relates to a method and apparatus of power distribution control for power module and a power module device. The method includes: obtaining temperature data of target devices in two or more power modules; analyzing whether the power modules are operating at full power when the temperature data of the target devices meets a preset temperature fault condition; and adjusting operating parameters of the power modules based on the temperature data when the power modules are not operating at full power.
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