公开(公告)号：US20240283034A1

公开(公告)日：2024-08-22

申请号：US18649132

申请日：2024-04-29

申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

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

CPC分类号： H01M10/4228 ,  H01M10/425 ,  H01M10/4285 ,  H01M10/613 ,  H01M10/625

摘要： 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.

公开(公告)号：US20240282973A1

公开(公告)日：2024-08-22

申请号：US18638670

申请日：2024-04-17

申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

发明人： Lan XIE ,  Zhen LIN ,  Shiliang LIN ,  Xiaohui WU ,  Long WANG ,  Wei LI ,  Zhonghong LI ,  Kai WU

IPC分类号： H01M4/62 ,  H01M4/02 ,  H01M10/0587

CPC分类号： H01M4/628 ,  H01M10/0587 ,  H01M2004/021 ,  H01M2004/028

摘要： A positive electrode sheet has a straight portion and to-be-bent portions, A thickening layer is disposed on at least one side of a positive electrode current collector of at least some of the to-be-bent portions, the thickening layer is disposed between the positive electrode current collector and a positive electrode active material layer, the positive electrode active material layer covers a surface of the thickening layer is a first positive electrode active material layer, and the positive electrode active material layer located in the straight portion is a second positive electrode active material layer. A ratio of a thickness of the first positive electrode active material layer to a thickness of the second positive electrode active material layer is 20-80%.