A High-Efficiency Energy Storage Scheme of Solar Micro-Power Systems

Abstract:

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In self-power sensor nodes, the capability of energy harvesting and storing of the solar micro-power system determines their lifetime and adaptability to the environment. As a load of solar cells, energy storage devices directly influence the output conversion efficiency of solar cells and output power of solar micro-power system. In this paper, the advantages and disadvantages of NiCD batteries, NiMH batteries, Polymer Lithium-ion batteries and Super-capacitors are analyzed based on features of the solar micro-power system. A hybrid storage system combined with Polymer Lithium-ion batteries and the super-capacitors is designed. Experimental results show that the power density of hybrid storage system is larger than that of Polymer Lithium-ion batteries. The capability of pulsing load is improved over 60%, and the energy storage loss is reduced.

Info:

Periodical:

Advanced Materials Research (Volumes 60-61)

Edited by:

Xiaohao Wang

Pages:

74-78

DOI:

10.4028/www.scientific.net/AMR.60-61.74

Citation:

Y. T. He et al., "A High-Efficiency Energy Storage Scheme of Solar Micro-Power Systems ", Advanced Materials Research, Vols. 60-61, pp. 74-78, 2009

Online since:

January 2009

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Price:

$35.00

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