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Titolo:
Comparison of lithium//polyaniline secondary batteries with different dopants of HCl and lithium ionic salts
Autore:
Ryu, KS; Kim, KM; Kang, SG; Joo, J; Chang, SH;
Indirizzi:
ETRI, Telecommun Basic Res Lab, Elect & Telecommun Res Inst, Taejon 305350, South Korea ETRI Taejon South Korea 305350 mmun Res Inst, Taejon 305350, South Korea Korea Univ, Dept Phys, Seoul 136701, South Korea Korea Univ Seoul South Korea 136701 Dept Phys, Seoul 136701, South Korea
Titolo Testata:
JOURNAL OF POWER SOURCES
fascicolo: 2, volume: 88, anno: 2000,
pagine: 197 - 201
SICI:
0378-7753(200006)88:2<197:COLSBW>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
RAY PHOTOELECTRON-SPECTROSCOPY; POLYANILINE;
Keywords:
polyaniline; lithium salt doping; polymer electrode; lithium secondary battery;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Ryu, KS ETRI, Telecommun Basic Res Lab, Elect & Telecommun Res Inst, Taejon 305350, South Korea ETRI Taejon South Korea 305350 Inst, Taejon 305350, South Korea
Citazione:
K.S. Ryu et al., "Comparison of lithium//polyaniline secondary batteries with different dopants of HCl and lithium ionic salts", J POWER SOU, 88(2), 2000, pp. 197-201

Abstract

Polyanilines doped either with a protonic acid (HCl) or an electrolytic solution containing a lithium ionic salt (LiPF6 or LiBF4) are prepared and their electrochemical characteristics for use as polymer electrodes of lithium secondary batteries are investigated. An emeraldine base (EB) film doped with HCl has the highest d.c. conductivity(similar to 10 S/cm). An EB-LiPF6film has higher conductivity (similar to 0.52 S/cm) than an EB-LiBF4 (similar to 0.082 S/cm) film. X-ray photoelectron spectroscopic analysis of the films shows that some of the quinoid rings in EB are transformed into benzeniod rings through a doping process to generate polarons. The charge-discharge characteristics of lithium secondary batteries using the polyaniline films as positive electrodes are determined. The cell using the EB-LiPF6 filmand an electrolytic solution containing LiPF6 exhibits the highest specific discharge capacity(similar to 50 mA h/g), whereas the cell using EB-HCl and LiPF6 solution has superior performance in the rapid saturation of discharge capacity and in stability. (C) 2000 Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 09:00:31