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http://dx.doi.org/10.7471/ikeee.2014.18.1.096

Battery Lifetime Enhancement Based on Recovery Effect  

Lee, Jong-Bae (School of Electronic Engineering, Soongsil University)
Lee, Seongsoo (School of Electronic Engineering, Soongsil University)
Publication Information
Journal of IKEEE / v.18, no.1, 2014 , pp. 96-105 More about this Journal
Abstract
This paper proposes a battery lifetime enhancement method based on the nonlinear discharge charisteristics called recovery effect. In general, the stored energy in a battery is considered in the prediction of battery lifetime. However, due to the chemical reaction in a battery, more energy can be drawn from a battery when it is not continuously but intermittently discharged, which is called recovery effect. In the proposed method, several battery cells are alternately discharged, and some battery cells rest while maintaining the system power supply. This makes recovery effect of battery cells, which extends battery lifetime. In the experiment, battery lifetime increases about 7% in the alternating discharge of two battery cells, when compared with conventional parallel discharge.
Keywords
battery; recovery effect; rate capacity effect; low-power; alternating discharge;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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