公开(公告)号：US20240162515A1

公开(公告)日：2024-05-16

申请号：US18423052

申请日：2024-01-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Cuicui ZHU ,  Jijun ZHANG ,  Shaofei WANG ,  Yimin WEI

IPC: H01M10/48 ,  H01M10/42 ,  H01M10/617 ,  H01M10/63

CPC classification number: H01M10/486 ,  H01M10/617 ,  H01M10/63 ,  H01M2010/4278

Abstract: A battery pack includes a cell module including at least one cell, a first collecting module including at least one first collecting unit arranged in the cell and configured to collect first operation data of the cell, and a data processing module connected with the first collecting unit and configured to perform a thermal runaway detection on the cell based on the first operation data to obtain a first detection result.

公开(公告)号：US20230387484A1

公开(公告)日：2023-11-30

申请号：US18321294

申请日：2023-05-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ting FENG ,  Jijun ZHANG ,  Shaofei WANG ,  Yimin WEI

IPC: H01M10/42 ,  G01R31/36 ,  G01R31/3842

CPC classification number: H01M10/4285 ,  G01R31/3648 ,  G01R31/3842

Abstract: A battery detection method and apparatus are provided. The battery detection apparatus includes: a voltage measurement module, configured to connect to a battery to be tested, and measure an open-circuit voltage of the battery to be tested; a processor, configured to obtain the open-circuit voltage; a constant voltage source, configured to input a test voltage to the battery to be tested under control of the processor after the battery to be tested stands for a preset time, the test voltage is the same as the open-circuit voltage; and a current measurement module, configured to measure an instantaneous current of the battery to be tested after the test voltage is inputted. The processor is also configured to obtain the instantaneous current and determine the self-discharge characteristic of the battery to be tested according to the instantaneous current and a preset current threshold.

公开(公告)号：US20220120815A1

公开(公告)日：2022-04-21

申请号：US17561750

申请日：2021-12-24

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yimin WEI ,  Zhen LIN ,  Xingsheng WEI

IPC: G01R31/388 ,  G01R31/36 ,  G01R31/367

Abstract: The present application discloses a method, apparatus, device and medium for estimating performance parameters of a battery. The method for estimating performance parameters of a battery includes: generating a first curve segment to be calibrated during a process of adjusting a battery capacity in a first capacity interval with a first capacity value as an endpoint value; determining, in a preset reference curve, a first target curve segment that matches the first curve segment to be calibrated; determining a SOC interval corresponding to the first target curve segment as a SOC interval of the first curve segment to be calibrated; and estimating the performance parameters of the battery based on the SOC interval of the first curve segment to be calibrated, the performance parameters include a current SOC and/or a current battery capacity.