公开(公告)号：US20230333168A1

公开(公告)日：2023-10-19

申请号：US18152771

申请日：2023-01-11

Applicant: Industrial Technology Research Institute

Inventor： Teng-Chun Wu ,  Yean-San Long ,  Cho-Fan Hsieh ,  Min-An Tsai ,  Hsiu-Ming Chang ,  Feng-Ming Chuang ,  Tze-An Liu

IPC: G01R31/367

CPC classification number: G01R31/367

Abstract: A method and a device for battery detection are provided. In the method, multiple characteristic values measured from a battery during operation of the battery are captured via a data capturing device to form a characteristic curve. Curve fitting is performed on the characteristic curve to obtain a curve error. According to the magnitude of the curve error, it is determined whether the battery is normal. When the determination result is abnormal, a step-curvature radius analysis is performed on the characteristic curve to determine whether the battery is normal.