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公开(公告)号：US20230090857A1
公开(公告)日：2023-03-23
申请号：US17992216
申请日：2022-11-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu LIU , Yanding LIU , Ce LIU , Pinghua WANG , Yong CAO
Abstract: A battery protection apparatus power protection apparatus is configured to protect an electrochemical cell connected to a load, and includes a protection IC, a switching transistor group, and a sampling resistor. The protection IC includes two power input terminals respectively connected to positive and negative electrodes of the electrochemical cell, and an operational amplifier, where the operational amplifier includes a positive input pin, a negative input pin, and an output pin. The switching transistor group is connected between the negative electrode of the electrochemical cell and the load, and is configured to control turn-on and turn-off of a charge and discharge circuit of the electrochemical cell. The sampling detection resistor Rs is serially connected between the sampling circuit detection terminal and the output pin, where the main circuit detection terminal is connected to the positive input pin, and the sampling circuit detection terminal is connected to the negative input pin.
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公开(公告)号：US20210288316A1
公开(公告)日：2021-09-16
申请号：US17325302
申请日：2021-05-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yujing SHA , Shengan XIA , Pinghua WANG
Abstract: A silicon-oxygen composite anode material includes a kernel, a coating layer wrapped outside the kernel, and an intermediate layer located between the kernel and the coating layer. The intermediate layer includes the non-lithium silicate, and mass content of the non-lithium silicate in the intermediate layer progressively decreases from the intermediate layer to the kernel. The progressive decrease includes a gradient decrease from the intermediate layer to the kernel. The gradient decrease refers to that mass proportions on a circumference with a same distance from a center of the kernel are the same, and the mass proportion decreases gradually as the distance from the center of the kernel decreases. The non-lithium silicate is generated in situ at an outer layer of the kernel, and has a non-water-soluble, non-alkaline, or weak-alkaline dense structure.
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公开(公告)号：US20190222039A1
公开(公告)日：2019-07-18
申请号：US16359061
申请日：2019-03-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu LIU , Pinghua WANG , Ce LIU , Yanding LIU , Jinbo MA
Abstract: An example battery, a terminal, or a charging system can include a battery charging port, a battery discharging port, a battery negative port, an overcurrent protection element, a protection integrated circuit, a control switch, and an electrochemical cell. The battery charging port is connected to a positive electrode of the electrochemical cell, the control switch is connected in series between a negative electrode of the electrochemical cell and the battery negative port, the protection integrated circuit is connected in parallel to two ends of the electrochemical cell, and the protection integrated circuit is further connected to the control switch, so as to send a control signal to the control switch. In addition, the overcurrent protection element is connected in series between the battery discharging port and the positive electrode of the electrochemical cell.
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公开(公告)号：US20250079578A1
公开(公告)日：2025-03-06
申请号：US18951975
申请日：2024-11-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liang FAN , Wei ZHOU , Yangxing LI , Pinghua WANG , Yong CAO
IPC: H01M50/136 , H01M50/105 , H01M50/117 , H01M50/119 , H01M50/121 , H01M50/129 , H01M50/14 , H01M50/178 , H01M50/184 , H01M50/557
Abstract: The present invention provides a flexible battery, including an electrochemical cell layer and a wrapping layer that wraps the electrochemical cell layer. The flexible battery further includes an energy absorbing layer. The energy absorbing layer is located between the wrapping layer and upper and lower surfaces, which are opposite to each other, of the electrochemical cell layer. The energy absorbing layer includes a plurality of supporting parts that protrude outward from the upper or lower surface of the electrochemical cell layer. The plurality of supporting parts are mainly made of a foam material or rubber. For the energy absorbing layer, a lower-modulus buffering layer or an empty part may be further disposed between the electrochemical cell layer and the wrapping layer, to complement a wavy surface of the supporting part to form a flat surface.
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公开(公告)号：US20240332995A1
公开(公告)日：2024-10-03
申请号：US18599527
申请日：2024-03-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu LIU , Pinghua WANG , Ce LIU , Yanding LIU , Jinbo MA
CPC classification number: H02J7/0031 , H01M10/425 , H01M10/46 , H02J7/0029 , H02J7/00304 , H02J7/0045 , H02J7/34 , H01M2010/4271 , H02J7/00302 , H02J7/00306 , H02J7/00308 , H02J7/00309
Abstract: Example batteries, terminals, and charging systems are described. One example battery includes a battery charging port, a battery discharging port, a battery negative port, an overcurrent protection element, a protection integrated circuit, a control switch, and an electrochemical cell. The battery charging port is connected to a positive electrode of the electrochemical cell. The control switch is connected in series between a negative electrode of the electrochemical cell and the battery negative port. The protection integrated circuit is connected in parallel to two ends of the electrochemical cell. The protection integrated circuit is further connected to the control switch so as to send a control signal to the control switch. In addition, the overcurrent protection element is connected in series between the battery discharging port and the positive electrode of the electrochemical cell. The battery provided in the present application has both a charging path and a discharging path.
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Patent Agency Ranking
公开(公告)号：US20220285685A1
公开(公告)日：2022-09-08
申请号：US17752005
申请日：2022-05-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhengjie LI , Chuanzhang GE , Wei ZHOU , Shengan XIA , Pinghua WANG
Abstract: Embodiments of the present invention provide a negative electrode material, including a doped carbon material. The doped carbon material includes a carbon-based matrix and doping elements doped in the carbon-based matrix. The doping elements include at least two of B, N, O, P, S, and F. At least a part of the doping elements form C-Ma-Mb chemical bonds with the carbon-based matrix. Ma and Mb represent two different types of doping elements. The negative electrode material includes the doped carbon material, and the doping elements in the doped carbon material form the C-Ma-Mb chemical bonds with the carbon-based matrix. Therefore, the negative electrode material has excellent fast charging performance. Embodiments of the present invention further provide a production method of the negative electrode material, a battery including the negative electrode material, and a terminal.
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公开(公告)号：US20200350772A1
公开(公告)日：2020-11-05
申请号：US16935828
申请日：2020-07-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu LIU , Pinghua WANG , Ce LIU , Yanding LIU , Jinbo MA
Abstract: Example batteries, terminals, and charging systems are described. One example battery includes a battery charging port, a battery discharging port, a battery negative port, an overcurrent protection element, a protection integrated circuit, a control switch, and an electrochemical cell. The battery charging port is connected to a positive electrode of the electrochemical cell. The control switch is connected in series between a negative electrode of the electrochemical cell and the battery negative port. The protection integrated circuit is connected in parallel to two ends of the electrochemical cell. The protection integrated circuit is further connected to the control switch so as to send a control signal to the control switch. In addition, the overcurrent protection element is connected in series between the battery discharging port and the positive electrode of the electrochemical cell. The battery provided in the present application has both a charging path and a discharging path.
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公开(公告)号：US20230198032A1
公开(公告)日：2023-06-22
申请号：US18069709
申请日：2022-12-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dawei HUO , Jie DING , Pinghua WANG , Hui LI , Jinbo MA
CPC classification number: H01M10/44 , G06N20/00 , H02J7/0071
Abstract: The present disclosure provides a charging method and a terminal. The method includes: automatically learning, by the terminal, historical data by using a machine learning algorithm, to establish a habit model of a user, and matching a current time with the usage habit model of the user to determine a current charging intention of the user, so as to determine a charging mode according to the charging intention.. By means of the technical solutions, a charging requirement of a user can be effectively identified, and on-demand charging can be implemented. This improves user experience while avoiding a battery life decrease caused by frequent fast charging.
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公开(公告)号：US20220376521A1
公开(公告)日：2022-11-24
申请号：US17880288
申请日：2022-08-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu LIU , Pinghua WANG , Ce LIU , Yanding LIU , Jinbo MA
Abstract: Example devices are described. One example device includes a battery. The battery includes a battery charging port, a battery discharging port, a battery negative port, a protection integrated circuit, a control switch, and an electrochemical cell. The battery charging port and the battery discharging port are ports independent of each other. The battery charging port is connected to a first electrode of the electrochemical cell, and a second electrode of the electrochemical cell is connected to a first end of the control switch, and a second end of the control switch is connected to the battery negative port. The protection integrated circuit is connected in parallel to electrodes of the electrochemical cell, and the protection integrated circuit is further connected to a third end of the control switch. The battery discharging port is connected to the first electrode of the electrochemical cell.
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公开(公告)号：US20190315246A1
公开(公告)日：2019-10-17
申请号：US16455183
申请日：2019-06-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yingtao LI , Pinghua WANG , Zhixian WU
Abstract: The present application relates to the field of automotive technologies, and provides an electric vehicle wireless charging method, an apparatus, and a system. A wireless charging station can charge an electric vehicle according to a charging request of the electric vehicle and charging permission of the electric vehicle prestored on the wireless charging station, so that resources of the wireless charging station are maximally used, and resource waste of the wireless charging station is avoided.
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