公开(公告)号：US20240363918A1

公开(公告)日：2024-10-31

申请号：US18765330

申请日：2024-07-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhanliang Li ,  Yuanmiao Zhao ,  Yu Yan ,  Zhimin Dan ,  Xiaojian Huang ,  Xinwei Chen

IPC: H01M10/637 ,  B60L58/27 ,  H01M10/615 ,  H01M10/625 ,  H01M10/63 ,  H02J7/00 ,  H02P27/08 ,  H02P29/60

CPC classification number: H01M10/637 ,  H01M10/615 ,  H01M10/625 ,  H01M10/63 ,  H02J7/0063 ,  H02P27/08 ,  H02P29/60 ,  B60L58/27 ,  H01M2220/20

Abstract: Disclosed is a control method of a heating system for a battery. The control method includes: alternately controlling a switch module to be in a first switch state within a first duration and in a second switch state within a second duration; discharging to a power supply module by an energy storage module through a first loop within the first half time T of the first duration, and charging the energy storage module by the power supply module through the first loop within the second half time T of the first duration; and discharging to the power supply module by the energy storage module through a second loop within the first half time T of the second duration, and charging the energy storage module by the power supply module through the second loop within the second half time T of the second duration.

公开(公告)号：US12119697B2

公开(公告)日：2024-10-15

申请号：US18594808

申请日：2024-03-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuanmiao Zhao ,  Zhimin Dan ,  Yu Yan ,  Zhanliang Li ,  Xiaojian Huang ,  Xinwei Chen

IPC: H02J7/00 ,  B60L58/18 ,  H02J7/14

CPC classification number: H02J7/00712 ,  B60L58/18 ,  H02J7/0014 ,  B60L2240/547

Abstract: A voltage regulation circuit for traction battery includes a traction battery, a heating module, a charge/discharge interface, and a voltage regulation module. The heating module includes a power storage element and a switch module. The traction battery is connected in parallel to the switch module. An external charging and discharging device is connected in parallel to the traction battery through the charge/discharge interface. The voltage regulation module includes a plurality of switches and a power storage regulation element, and the plurality of switches and the power storage regulation element are disposed between the charge/discharge interface and the traction battery. The voltage regulation module and the switch module are configured to regulate, in response to a voltage regulation control signal, a charge/discharge voltage between the traction battery and the power storage element and a charge voltage of the external charging and discharging device for the traction battery.

公开(公告)号：US20230029931A1

公开(公告)日：2023-02-02

申请号：US17566696

申请日：2021-12-31

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Longzhen Lin ,  Yu Yan ,  Xiao Wang

IPC: B60L55/00 ,  H04L67/12 ,  B60L53/68

Abstract: The application provides a method, a charging-discharging device, a cloud server, a system and a medium for charging-discharging interaction, which belong to the fields of electric power technologies. The method for charging-discharging interaction includes: the charging-discharging device transmits a vehicle-to-grid V2G function confirmation message to a battery management system of a target vehicle; when no V2G function feedback message fed back by the battery management system is received within a preset period of time after transmitting the V2G function confirmation message, the charging-discharging device transmits a first indication message to a cloud server to indicate that the target vehicle is V2G-disabled; in response to a non-V2G charging instruction received from the cloud server, the charging-discharging device performs a non-V2G charging for the target vehicle. The availability of the charging-discharging device can be improved according to embodiments of the present application.

公开(公告)号：US12051934B2

公开(公告)日：2024-07-30

申请号：US17563513

申请日：2021-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yu Yan ,  Xiyang Zuo ,  Zhimin Dan ,  Haili Li ,  Shan Huang ,  Shichao Li

IPC: H02J7/00 ,  B60L50/60 ,  B60L58/12 ,  H01M10/42

CPC classification number: H02J7/00714 ,  B60L50/60 ,  B60L58/12 ,  H01M10/425 ,  H02J7/0048 ,  B60L2210/10 ,  B60L2210/30 ,  H01M2010/4271

Abstract: Embodiments of the application provide a method for charging battery a charging and discharging device, which can ensure the safety performance of the battery. The charging and discharging device includes a first DC/DC converter, a unidirectional AC/DC converter and a control unit, where the first DC/DC converter is a unidirectional DC/DC converter, and the control unit is configured to: receive a first charging current and control the unidirectional AC/DC converter and the first DC/DC converter to charge a battery through an AC power source based on the first charging current; receive a first discharging current, and control the battery to release power based on the first discharging current; and receive a second charging current, and control the unidirectional AC/DC converter and the first DC/DC converter to charge the battery through the AC power source based on the second charging current.

公开(公告)号：US12115878B2

公开(公告)日：2024-10-15

申请号：US17712085

申请日：2022-04-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhanliang Li ,  Yu Yan ,  Zhimin Dan ,  Miaomiao Zhang

IPC: B60L53/80 ,  B60L53/53 ,  B60S5/06 ,  H02J3/32 ,  H02J7/00 ,  B60L53/63 ,  B60L58/12 ,  H02J7/02

CPC classification number: B60L53/80 ,  B60L53/53 ,  B60S5/06 ,  H02J3/322 ,  H02J7/0013 ,  H02J7/007 ,  B60L53/63 ,  B60L58/12 ,  H02J7/02

Abstract: The embodiments of the present application provide a method, apparatus, device, and medium for electric energy transmission. The method includes: determining a resource value of a unit of electric energy of a grid at a target time; under a condition that the resource value is greater than or equal to a first resource threshold, determining a number of available batteries in a battery swapping station and an ordered number of batteries in the battery swapping station within a target time period; and under a condition that the number of available batteries is greater than a number of reserved batteries, controlling a charging and discharging module to transmit electric energy of a first battery in the battery swapping station to the grid.

公开(公告)号：US12095301B2

公开(公告)日：2024-09-17

申请号：US17980860

申请日：2022-11-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shuyun Xiong ,  Yu Yan ,  Zhimin Dan ,  Zhanliang Li ,  Weiping Sun

IPC: B60L53/62 ,  B60L58/12 ,  H01M10/42 ,  H01M10/44 ,  H01M10/46 ,  H02J7/00 ,  B60L53/66

CPC classification number: H02J7/00711 ,  B60L53/62 ,  B60L58/12 ,  H01M10/425 ,  H01M10/443 ,  H01M10/46 ,  H02J7/00036 ,  H02J7/0047 ,  H02J7/00712 ,  H02J7/007194 ,  B60L53/66 ,  H01M2010/4271 ,  H01M2220/20

Abstract: A charging method, a battery management system for a traction battery and a charging pile are provided, which can effectively ensure normal charging of an electric vehicle. The charging method is used for charging a traction battery, and the method includes: determining, by the battery management system (BMS) of the traction battery, a pulse charging demand parameter according to a battery state parameter of the traction battery; and sending a pulse charging information to a charging pile by the BMS, the pulse charging information including the pulse charging demand parameter for indicating the charging pile to output a pulse current for charging the traction battery.

公开(公告)号：US11936235B2

公开(公告)日：2024-03-19

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 ,  H02J7/0013 ,  H02J7/00309

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.

公开(公告)号：US11865943B2

公开(公告)日：2024-01-09

申请号：US18182841

申请日：2023-03-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chenxu Luo ,  Jianfu He ,  Qian Liu ,  Yu Yan ,  Yonghuang Ye ,  Haizu Jin

IPC: H02J7/00 ,  B60L58/16 ,  B60L58/18 ,  B60L58/24 ,  H01M50/572 ,  H01M50/155 ,  H01M4/485 ,  H01M10/44

CPC classification number: B60L58/16 ,  B60L58/18 ,  B60L58/24 ,  H01M4/485 ,  H01M10/44 ,  H01M50/155 ,  H01M50/572 ,  B60L2240/545 ,  B60L2240/547

Abstract: A charging method for a secondary battery including a lithium-supplementing material. The method includes acquiring a first state of health of the secondary battery in response to the secondary battery being at a preset charging node, activating the lithium-supplementing material in response to the first state of health being less than or equal to a first threshold to supplement lithium for the secondary battery, performing a charging process on the secondary battery, determining a second state of health of the secondary battery based on a working parameter of the secondary battery in the charging process, and charging the secondary battery in response to the second state of health being greater than a second threshold.

公开(公告)号：US20230061401A1

公开(公告)日：2023-03-02

申请号：US17712085

申请日：2022-04-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhanliang LI ,  Yu Yan ,  Zhimin Dan ,  Miaomiao Zhang

IPC: H02J3/32 ,  H02J7/00 ,  H02J7/02 ,  B60L53/80 ,  B60S5/06

Abstract: The embodiments of the present application provide a method, apparatus, device, and medium for electric energy transmission. The method includes: determining a resource value of a unit of electric energy of a grid at a target time; under a condition that the resource value is greater than or equal to a first resource threshold, determining a number of available batteries in a battery swapping station and an ordered number of batteries in the battery swapping station within a target time period; and under a condition that the number of available batteries is greater than a number of reserved batteries, controlling a charging and discharging module to transmit electric energy of a first battery in the battery swapping station to the grid.

公开(公告)号：US20220407338A1

公开(公告)日：2022-12-22

申请号：US17561239

申请日：2021-12-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhanliang Li ,  Yu Yan ,  Zhimin Dan ,  Shuyun Xiong ,  Weiping Sun ,  Xiyang Zuo

IPC: H02J7/00 ,  G01R31/382

Abstract: The present application provides a charging control method and apparatus, a battery management system and a readable storage medium. The charging control method includes: obtaining a battery temperature and a battery state of charge; determining a pulse charging frequency according to the battery temperature, the battery state of charge and a pre-calibrated corresponding relationship; obtaining a preset waveform characteristic of a pulse charging waveform; where the waveform characteristic includes a ratio range of an area of a positive pulse waveform to an area of a negative pulse waveform in each pulse cycle of the pulse charging waveform; and generating a charging request according to the pulse charging frequency and the waveform characteristic and transmitting the charging request to a charging device. The method is used for improving charging stability and safety of a battery.