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Development of a Battery Monitoring Technology using Its Impedance  

Shim, Jae-Hong (Dept. of Mechatronics Engineering, Korea Polytechnic University)
Kim, Jae-Dong (Wens Precision Co., Ltd.)
Publication Information
Journal of the Semiconductor & Display Technology / v.10, no.4, 2011 , pp. 25-29 More about this Journal
Abstract
Emerging demands for rechargeable battery for various applications needs more effective battery management system such as the prediction of the usable time about a battery. Many prediction methods have been suggested but none of them come into bounds of reliability. In this paper, we proposed a new prediction algorithm for the remaining capacity of a rechargeable battery by using the transformed curve based on its impedance. Hardware for monitoring a battery was designed and made. Through a series of experiment, we showed the effectiveness of the proposed prediction algorithm of a battery's remaining capacity.
Keywords
Impedance; Battery; Lifetime; Remaining; Capacity; Prediction; Discharge; Curve;
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