公开(公告)号：US12235327B2

公开(公告)日：2025-02-25

申请号：US18101970

申请日：2023-01-26

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Yu-Hong Shen ,  Po-Wei Chen ,  Tsan-Huang Chen

IPC: G01R31/392 ,  G01R31/3835 ,  H02J7/00

Abstract: A method for calculating state of health of battery, performed by a processing control circuit, includes: charging a battery under test to an upper voltage with a first constant current through a charging circuit and an electrical measuring circuit, discharging the battery under test to a lower voltage with a second constant current through the charging circuit and the electrical measuring circuit, obtaining an accumulated discharge capacity from the upper voltage to the lower voltage through the electrical measuring circuit, and calculating a state of health of the battery under test at least according to the accumulated discharge capacity and a design capacity.