Title :
Battery capacity measurement and analysis using lithium coin cell battery
Author :
Park, Sung ; Savvides, Andreas ; Srivastava, Mani B.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
In this paper, we look at different battery capacity models that have been introduced in the literatures. These models describe the battery capacity utilization based on how the battery is discharged by the circuits that consume power. In an attempt to validate these models, we characterize a commercially available lithium coin cell battery through careful measurements of the current and the voltage output of the battery under different load profile applied by a micro sensor node. In the result, we show how the capacity of the battery is affected by the different load profile and provide analysis on whether the conventional battery models are applicable in the real world. One of the most significant finding of our work will show that DC/DC converter plays a significant role in determining the battery capacity, and that the true capacity of the battery may only be found by careful measurements
Keywords :
DC-DC power convertors; lithium; primary cells; DC/DC converter; Li; battery capacity measurement; battery capacity model; lithium coin cell battery; load profile; microsensor node; Battery charge measurement; Circuits; Current measurement; DC-DC power converters; Electric variables measurement; Embedded system; Lithium; Permission; Power system modeling; Voltage;
Conference_Titel :
Low Power Electronics and Design, International Symposium on, 2001.
Conference_Location :
Huntington Beach, CA
Print_ISBN :
1-58113-371-5
DOI :
10.1109/LPE.2001.945436