公开(公告)号：DE4402716C2

公开(公告)日：1996-08-29

申请号：DE4402716

申请日：1994-01-29

Applicant: IBM

Inventor： MEYERDIRKS HERBERT ,  PIETSCHMANN WALTER

IPC: G01R31/36 ,  H01M10/48 ,  H02J7/00 ,  H02J15/00 ,  H02J9/04 ,  G01R17/00

Abstract: Disclosed is a system for supplying power to an apparatus (170, 175) with a power-storage device (200) for storing electric power, a first measuring device (310) for measuring a first electrical quantity of the power-storage device (200), a time-determining device (360) for determining the time taken for the first electrical quantity to reach a first level, a second measuring device (320) for measuring a second electrical quantity of the power-storage device (200) and a comparator (330) for comparing the second electrical quantity relative to the determined time with a stored typical time-characteristic of the second electrical quantity. Thereby a method of assessing the lifetime and capacity of the power-storage device (200) is used with as a first step (500) the measurement of a first electrical quantity of the power-storage device (200), as a second step (510) the determination of the time taken for the first electrical quantity to reach a first level, as a third step (520) the measurement of a second electrical quantity of the power-storage device (200), as a fourth step (530) the comparison of the second electrical quantity relative to the determined time with a stored typical time-characteristic of the second electrical quantity and as a fifth step (540) the evaluation of the comparison from the fourth step for an assessment of the lifetime and capacity of the power-storage device (200).

公开(公告)号：DE4402716A1

公开(公告)日：1995-08-03

申请号：DE4402716

申请日：1994-01-29

Applicant: IBM

Inventor： MEYERDIRKS HERBERT ,  PIETSCHMANN WALTER

IPC: G01R31/36 ,  H01M10/48 ,  H02J7/00 ,  H02J15/00 ,  H02J9/04 ,  G01R17/00

Abstract: Disclosed is a system for supplying power to an apparatus (170, 175) with a power-storage device (200) for storing electric power, a first measuring device (310) for measuring a first electrical quantity of the power-storage device (200), a time-determining device (360) for determining the time taken for the first electrical quantity to reach a first level, a second measuring device (320) for measuring a second electrical quantity of the power-storage device (200) and a comparator (330) for comparing the second electrical quantity relative to the determined time with a stored typical time-characteristic of the second electrical quantity. Thereby a method of assessing the lifetime and capacity of the power-storage device (200) is used with as a first step (500) the measurement of a first electrical quantity of the power-storage device (200), as a second step (510) the determination of the time taken for the first electrical quantity to reach a first level, as a third step (520) the measurement of a second electrical quantity of the power-storage device (200), as a fourth step (530) the comparison of the second electrical quantity relative to the determined time with a stored typical time-characteristic of the second electrical quantity and as a fifth step (540) the evaluation of the comparison from the fourth step for an assessment of the lifetime and capacity of the power-storage device (200).