Life-time analysis of batteries used in portable digital systems

Author

Beinini, L. ; Castelli, Giuliano ; Macii, Alberto ; Macii, Enrico ; Poncino, Massimo ; Scarsi, Riccardo

Author_Institution

Dipartimento di Elettronica Inf. e Sistemistica, Bologna Univ., Italy

Volume

1

fYear

2000

fDate

2000

Firstpage

240

Abstract

Achieving long battery life-time is the main goal in the design of several classes of portable applications. The capability of monitoring the impact of different design options on the discharge rate of the battery is thus the key to guarantee the quality of the chosen optimizations. In this paper, we demonstrate experimentally how a battery model suitable for high-level digital simulation can be of help for studying the variations of the life-time of a battery when different loading conditions are assumed. In particular, the impact of the profile of the load current drawn from the battery on life-time is investigated in detail for the realistic case of Lithium-Ion batteries

Keywords

computer power supplies; digital simulation; portable computers; reliability; secondary cells; battery model; battery on life-time; design options; discharge rate; high-level digital simulation; life-time analysis; lithium-ion batteries; load current; loading conditions; portable applications; portable digital systems; Batteries; Capacitors; Chemistry; Circuit simulation; Design optimization; Digital systems; Monitoring; Power system modeling; Tuned circuits; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrotechnical Conference, 2000. MELECON 2000. 10th Mediterranean

Conference_Location

Lemesos

Print_ISBN

0-7803-6290-X

Type

conf

DOI

10.1109/MELCON.2000.880411

Filename

880411