Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference (한국조명전기설비학회:학술대회논문집)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Investigation of Charge distribution in an Electric double layer capacitor

전기이중층 캐패시터 내의 전하분포 고찰

  • Endrowednes, Kuantama (Department of Electrical and Electronic Engineering, Kyungsung University) ;
  • Jessi, Darma (Department of Electrical and Electronic Engineering, Kyungsung University) ;
  • Sung, Youl-Moon (Department of Electrical and Electronic Engineering, Kyungsung University) ;
  • Kim, Kwang-Tae (Department of Electricity Automation, Busan College of Information Technology)
  • ;
  • ;
  • 성열문 (경성대) ;
  • 김광태 (부산정보대학)
  • Published : 2008.10.17
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Abstract

The use of the pulsed electro acoustic (PEA) method allowed us to perform the direct observations of spatio-temporal charge distributions in Electric double layer capacitors (EDLCs) based on polarizable nanoporous carbonaceous electrode. The negative charge density became the maximum, about 205 C/$m^3$ at the region where was near to collector layer in EDLCs for case $V_{DC}$ = 2.5 V, while the positively charged density became the maximum, about 61.1 C/$m^3$ at the region where it was located around the cathode layer. The PEA measurement used here is a very useful method to quantitively investigates the spatio-temporal charge distribution in EDLCs.

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