公开(公告)号：US20240178695A1

公开(公告)日：2024-05-30

申请号：US18433494

申请日：2024-02-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Long SUN ,  Lan XIE ,  Zhen LIN

IPC: H02J7/00

CPC classification number: H02J7/00716 ,  H02J7/0048 ,  H02J7/005 ,  H02J7/007194

Abstract: A charging method may include: sending a first command to a charging device, the first command being used to control the charging device to output an oscillation current to the battery during a first time period in a charging process, where the oscillation current may include n cycle periods, n being a positive integer greater than 1, each of the cycle periods may include a first sub-period and a second sub-period, a current output by the charging device during the first sub-period is a first current, a current output by the charging device during the second sub-period is a second current, and a direction of the first current may be opposite to that of the second current; and sending a second command to the charging device, the second command being used to instruct the charging device to charge the battery during a second time period in the charging process.

公开(公告)号：US20240283034A1

公开(公告)日：2024-08-22

申请号：US18649132

申请日：2024-04-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Long SUN ,  Lan XIE ,  Chenping WANG ,  Xiaohui WU ,  Zhen LIN

IPC: H01M10/42 ,  H01M10/613 ,  H01M10/625

CPC classification number: H01M10/4228 ,  H01M10/425 ,  H01M10/4285 ,  H01M10/613 ,  H01M10/625

Abstract: This application relates to a liquid leak detection method and apparatus, a battery control unit, and a battery management system. The method includes: obtaining a gas concentration detection signal output separately by a plurality of target gas sensors in a battery box, where the gas concentration detection signal is used for indicating a measured gas concentration; obtaining position information of each target gas sensor in the battery box; and determining a leaking region in the battery box based on the gas concentration detection signal and the position information of each target gas sensor. To sum up, in an embodiment of this application, the leaking region in the battery box can be located by analyzing the gas concentration detection signals and position information of a plurality of target gas sensors in the battery box, so that prompt information used for indicating the leaking region can be output subsequently.