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http://dx.doi.org/10.4313/TEEM.2007.8.2.097

Charging and Discharging Characteristics of Electric Double Layer Capacitors used for a Storage Battery of Solar Energy

Sung, Youl-Moon (Department of Electrical and Electronic Engineering, Kyungsung University)

Publication Information

Transactions on Electrical and Electronic Materials / v.8, no.2, 2007 , pp. 97-102 More about this Journal

Abstract

The charging/discharging characteristics of electric double layer capacitors (EDLCs) for an electric power storage device application were investigated. The specific area of the carbonaceous electrode surface by the BET method was in the range of $1800{\sim}2000\;m^2/g$ . The charge distributions during charging and discharging were measured by means of a pulsed-electro-acoustic (PEA) method, and the voltage characteristics of EDLCs connected to solar cells were evaluated. The results showed that the distributions of positive and negative charges were spatially uneven, which was due to the mobility of the positive and negative charges in the carbonaceous electrode surface of the EDLCs. The charge accumulation region concentrated on central part of the carbonaceous electrode and the required times for charging and discharging were almost same.

Keywords

Electric double layer capacitors; Pulsed electro acoustic method; Storage battery; Carbonaceous electrode;

Citations & Related Records

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