公开(公告)号：US11689143B2

公开(公告)日：2023-06-27

申请号：US17858862

申请日：2022-07-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiong Zheng ,  Xianxi Pan ,  Zhimin Dan ,  Hong Wang

IPC: H02P27/08 ,  H02M7/5395

CPC classification number: H02P27/08 ,  H02M7/5395 ,  H02K2213/03

Abstract: This application provides an electric motor control method and device, a system, and an electric vehicle. The method includes: obtaining an input power and an output power of an electric motor; calculating a loss power based on the input power and the output power; determining a target d-axis current of the electric motor, where the target d-axis current is calculated by a calculation module based on the loss power, the calculation module includes a tracking differentiator, and the calculation module operates in a controller; and determining a duty ratio based on the target d-axis current and a preset q-axis current, and inputting the duty ratio into an inverter so that the inverter drives, based on the duty ratio, the electric motor to operate.

公开(公告)号：US20240421402A1

公开(公告)日：2024-12-19

申请号：US18814208

申请日：2024-08-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qi CHENG ,  Hong Wang ,  Quankun Li ,  Jiang Liu ,  Daichun Tang

IPC: H01M50/244 ,  H01M50/105 ,  H01M50/242 ,  H01M50/249

Abstract: A battery, a power consumption apparatus, and a method for producing a battery are provided. The battery includes: a battery module including a first battery cell and a second battery cell that are disposed in a stacked manner along a first direction, where the first battery cell and the second battery cell are located at a first end of the battery module in a second direction, a first electrode output part of the first battery cell is connected to a second electrode output part of the second battery cell, the first direction is a thickness direction of the battery, and the second direction is a length direction of the battery; and a supporting member disposed in a first accommodating space enclosed by a first electrode output part and a second electrode output part, and configured to support the first electrode output part and the second electrode output part.

公开(公告)号：US20240429570A1

公开(公告)日：2024-12-26

申请号：US18823293

申请日：2024-09-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qi CHENG ,  Rui Yang ,  Quankun Li ,  Hong Wang ,  Kaihuan Yang

IPC: H01M50/533 ,  B60L50/64 ,  H01M50/105 ,  H01M50/178 ,  H01M50/474

Abstract: A battery cell, a battery, an electricity consuming device and a preparation method are provided. The battery cell includes an electrode assembly and an adapter. The electrode assembly includes at least two electrode bodies arranged side by side along a first direction and tabs extending from the electrode bodies. The tab includes an extension portion and a bent portion, the extension portion extends from the electrode body along a second direction, the bent portion is connected with an end of the extension portion away from the electrode body and extends along a first direction, an adapter is connected with the tabs, the current of the electrode body is conducted by the adapter to the outside, a bending arrangement of the tabs enhances their structural strength, avoiding the problem of degradation in internal electrical connection performance of the battery due to damage to the tabs by an external force.

公开(公告)号：US20240290973A1

公开(公告)日：2024-08-29

申请号：US18658950

申请日：2024-05-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ying Huang ,  Bin Yao ,  Hong Wang ,  Jiang Liu ,  Zhen Liu

IPC: H01M4/583 ,  H01M4/36 ,  H01M10/0525 ,  H01M10/0569

CPC classification number: H01M4/5835 ,  H01M4/366 ,  H01M10/0525 ,  H01M10/0569

Abstract: Provided are an electrode plate, a lithium-ion battery, a battery module, a battery pack, and an electric device. The electrode plates provided in the present disclosure include a current collector and an active substance layer disposed on at least one surface of the current collector, wherein the active substance layer includes a surfactant lithium salt.