Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
The effect of nickel foam current collector in carbon electrode based electric double layer capacitor
Autore:
Kim, JH; Shin, KH; Jin, CS; Kim, DK; Kim, YG; Park, JH; Lee, YS; Joo, YS; Lee, KH;
Indirizzi:
Korea Inst Energy Res, Energy Storage Res Ctr, Taejon 305343, South Korea Korea Inst Energy Res Taejon South Korea 305343 ejon 305343, South Korea
Titolo Testata:
ELECTROCHEMISTRY
fascicolo: 11, volume: 69, anno: 2001,
pagine: 853 - 857
SICI:
1344-3542(200111)69:11<853:TEONFC>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUPERCAPACITORS;
Keywords:
electric double layer capacitor (EDLC); activated carbon (AC) electrode sheet; nickel foam current collector; specific capacitance; impedance;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
4
Recensione:
Indirizzi per estratti:
Indirizzo: Kim, JH Korea Inst Energy Res, Energy Storage Res Ctr, Taejon 305343, South Korea Korea Inst Energy Res Taejon South Korea 305343 343, South Korea
Citazione:
J.H. Kim et al., "The effect of nickel foam current collector in carbon electrode based electric double layer capacitor", ELECTROCH, 69(11), 2001, pp. 853-857

Abstract

Activated carbon (AC) powder as an active electrode material and open-porenickel foam as a current collector material were used for an electric double layer capacitor (EDLC) with an aqueous electrolyte of KOH mixture. The electrochemical characteristics of the EDLC: being made of 3 cm by 3 cm electrode size were investigated by charge-discharge cycle tests, impedance analyzer and cyclic voltametry measurements. As a current collector, nickel foam with concave surface and many open-pore showed larger specific capacitance and lower impedance than that of nickel foil with a flat surface. As results from experiments, much improved specific capacitance of about 300 F/g at 40 mA/cm(2) of discharge current density and fairly low specific ESR of 0.63 Omega cm(2) at 1 kHz were obtained from the EDLC with the nickel foam current collector. The specific leakage current was measured as 0.18 mA/cm(2) with respect to the apparent electrode area of the EDLC with nickel foamcurrent collector.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 09:02:46