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1.发明申请公开(公告)号：US20220255055A1
公开(公告)日：2022-08-11
申请号：US17733167
申请日：2022-04-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hang Su , Guocheng Xu , Pinghua Wang , Yangxing Li
IPC: H01M4/134 , H01M4/62 , H01M10/0525
Abstract: Embodiments of the present invention provide a negative electrode material, including a doped silicon-based material. The doped silicon-based material includes a silicon-based material and doping metal elements distributed inside particles of the silicon-based material. The silicon-based material includes nano-silicon or silicon monoxide. A doping amount of the doping metal elements ranges from 1 ppm to 1000 ppm. The negative electrode material is obtained by doping metal elements with an extreme low content into a crystal structure of the silicon-based material, to maintain stability of an original crystal structure of the silicon-based material while improving conducting performance of the silicon-based material. Therefore, an energy density of a cell can be effectively improved, and the silicon-based material is not prone to be pulverized in a charging/discharging process. The embodiments of the present invention further provide a production method of the negative electrode material, a lithium-ion battery, and a terminal.
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公开(公告)号：US20190214833A1
公开(公告)日：2019-07-11
申请号：US16353539
申请日：2019-03-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yingtao Li , Kui Zhou , Guanghui Zhang , Pinghua Wang
IPC: H02J7/00 , H01M10/44 , G01R31/382 , G01R19/165
Abstract: A fast charging method, a fast charging system, and a fast charging apparatus for a series battery pack, where the fast charging method including obtaining charge parameters of battery units in a series battery pack, determining, based on the charge parameters, whether there is a differentiated battery unit in the series battery pack, where the differentiated battery unit is a battery unit whose charge parameter is different from a charge parameter of the rest battery units in the series battery pack, and changing the battery units in the series battery pack to a parallel connection when there is a differentiated battery unit in the series battery pack, and performing parallel charging on the battery units. Hence, the fast charging method for a series battery pack can effectively shorten a charging time.
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公开(公告)号：US20190036354A1
公开(公告)日：2019-01-31
申请号：US16148305
申请日：2018-10-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xujun Liu , Ce Liu , Yanding Liu , Jinbo Ma , Pinghua Wang
Abstract: A terminal and a fast charging method to fast charge the terminal, where the method includes sending, by the terminal, instruction information to a charger connected to the terminal in order to instruct the charger to adjust an output voltage and an output current, converting, by the terminal, the output voltage of the charger into 1/K times the output voltage, and converting the output current of the charger into K times the output current such that a charging circuit between two sides of a battery charges the battery with the 1/K times the output voltage and the K times the output current, where K is a conversion coefficient of a conversion circuit with a fixed conversion ratio in the terminal and is a constant value, and K is any real number greater than one.
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公开(公告)号：US11962176B2
公开(公告)日：2024-04-16
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
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 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：US11527883B2
公开(公告)日：2022-12-13
申请号：US16825061
申请日：2020-03-20
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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Patent Agency Ranking
公开(公告)号：US11312251B2
公开(公告)日：2022-04-26
申请号：US16455183
申请日：2019-06-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yingtao Li , Pinghua Wang , Zhixian Wu
IPC: B60L53/124 , H02J50/80 , H02J50/90 , H02J50/12 , H02J50/20 , B60L53/66 , B60L53/65 , H02J7/02 , B60L53/68 , B60L53/126 , B60L53/62 , H02J7/00 , B60L53/122
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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公开(公告)号：US10819124B2
公开(公告)日：2020-10-27
申请号：US16353539
申请日：2019-03-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yingtao Li , Kui Zhou , Guanghui Zhang , Pinghua Wang
IPC: H02J7/00 , G01R31/382 , G01R19/165 , H01M10/44
Abstract: A fast charging method, a fast charging system, and a fast charging apparatus for a series battery pack, where the fast charging method including obtaining charge parameters of battery units in a series battery pack, determining, based on the charge parameters, whether there is a differentiated battery unit in the series battery pack, where the differentiated battery unit is a battery unit whose charge parameter is different from a charge parameter of the rest battery units in the series battery pack, and changing the battery units in the series battery pack to a parallel connection when there is a differentiated battery unit in the series battery pack, and performing parallel charging on the battery units. Hence, the fast charging method for a series battery pack can effectively shorten a charging time.
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公开(公告)号：US10734830B2
公开(公告)日：2020-08-04
申请号：US16148305
申请日：2018-10-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xujun Liu , Ce Liu , Yanding Liu , Jinbo Ma , Pinghua Wang
Abstract: A terminal and a fast charging method to fast charge the terminal, where the method includes sending, by the terminal, instruction information to a charger connected to the terminal in order to instruct the charger to adjust an output voltage and an output current, converting, by the terminal, the output voltage of the charger into 1/K times the output voltage, and converting the output current of the charger into K times the output current such that a charging circuit between two sides of a battery charges the battery with the 1/K times the output voltage and the K times the output current, where K is a conversion coefficient of a conversion circuit with a fixed conversion ratio in the terminal and is a constant value, and K is any real number greater than one.
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公开(公告)号：US20160321403A1
公开(公告)日：2016-11-03
申请号：US15167083
申请日：2016-05-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Pinghua Wang , Kangmin Huang
IPC: G06F19/00
Abstract: Embodiments of the present invention disclose a data collection method and apparatus, which are used to adjust collection frequency intelligently. The method in the embodiments of the present invention includes the following: After acquiring vital sign data of a user, a data collection apparatus obtains a user state by means of analysis according to the vital sign data of the user; the data collection apparatus may determine different collection frequency according to different user states, and then collect vital sign data at the collection frequency; and the data collection apparatus may further analyze a user health state according to the collected vital sign data and notify the user of the user health state, and may further provide the user with health advice.
Abstract translation: 本发明的实施例公开了一种用于智能调节收集频率的数据采集方法和装置。 本发明实施例中的方法包括：在获取用户的生命体征数据之后，数据收集装置根据用户的生命体征数据通过分析获得用户状态; 数据采集装置可以根据不同的用户状态确定不同的收集频率，然后以收集频率收集生命体征数据; 并且数据收集装置还可以根据收集的生命体征数据进一步分析用户健康状态，并向用户通知用户健康状态，并且还可以向用户提供健康建议。
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公开(公告)号：US11862773B2
公开(公告)日：2024-01-02
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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