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

Yong Tai He; Li Hui Liu; Yan Qiu Li; Lei Wang

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

Paper Titles

Detection for Spring Constant of Microcantilevers in Atomic Force Microscopy Based on Frequency Measurements
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Photochemical Synthesis of Gold Nanostructures in Different Solvents
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MEMS Dielectrophoresis Device for Osteoblast Cell Stimulation
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An Excellent Platinum Piezoresistive Pressure Sensor Using Adhesive Bonding with SU-8
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A High-Efficiency Energy Storage Scheme of Solar Micro-Power Systems
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Study on Excitation Voltage Effects of the Thermal Excitation Resonant Pressure Sensor
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Gauge Factor and Nonlinearity of P-Type Polysilicon Nanofilms
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Analysis of Tunneling Piezoresistive Effect of P-Type Polysilicon Nanofilms
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Effects of Packaging on RF MEMS Switch’s Return Loss
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 60-61A High-Efficiency Energy Storage Scheme of Solar...

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

Abstract:

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.