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Titolo:
Effect of addition of fluoroethers to organic solvents for lithium ion secondary batteries
Autore:
Nakajima, T; Dan, K; Koh, M; Ino, T; Shimizu, T;
Indirizzi:
Aichi Inst Technol, Dept Appl Chem, Toyota 4700392, Japan Aichi Inst Technol Toyota Japan 4700392 Appl Chem, Toyota 4700392, Japan Kyoto Univ, Dept Polymer Chem, Sakyo Ku, Kyoto 6068501, Japan Kyoto Univ Kyoto Japan 6068501 ymer Chem, Sakyo Ku, Kyoto 6068501, Japan Daikin Ind Ltd, Settsu 5668585, Japan Daikin Ind Ltd Settsu Japan 5668585 aikin Ind Ltd, Settsu 5668585, Japan
Titolo Testata:
JOURNAL OF FLUORINE CHEMISTRY
fascicolo: 2, volume: 111, anno: 2001,
pagine: 167 - 174
SICI:
0022-1139(20011028)111:2<167:EOAOFT>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
RECHARGEABLE LI BATTERIES; INTERCALATION ANODES; GRAPHITE-ELECTRODES; DIETHYL CARBONATES; ELECTROLYTES; ETHYLENE; PERFORMANCE;
Keywords:
fluoroether; fluoroester; lithium ion battery; electrolyte solution; low temperature characteristics; surface film;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Nakajima, T Aichi Inst Technol, Dept Appl Chem, Yakusa Cho, Toyota 4700392, Japan Aichi Inst Technol Yakusa Cho Toyota Japan 4700392 392, Japan
Citazione:
T. Nakajima et al., "Effect of addition of fluoroethers to organic solvents for lithium ion secondary batteries", J FLUORINE, 111(2), 2001, pp. 167-174

Abstract

Electrochemical characteristics of graphite have been investigated in fluoroether-mixed ethylene carbonate (EC)/diethyl carbonate (DEC) solutions at 0 degreesC and in fluoroether- or fluoroester-mixed EC/DEC/propylene carbonate (PC) solutions at 0, -5 and -10 degreesC. Cyclic voltammetry studies indicate that the reduction potentials of the five fluoroethers used are in the range of 0.57-0.81 V versus Li/Li+ in EC/DEC. The charge capacities of graphite electrodes higher than that in EC/DEC are observed in both EC/DEC and EC/DEC/PC solutions containing fluoroethers or fluoroesters with slightly higher reduction potentials than EC. The reduction potentials and irreversible capacities are decreased with increasing LUMO energies of fluoroethers and fluoroesters. The improvement of low temperature characteristics of the graphite electrode is discussed on the basis of the formation of a surface film with C-F groups on graphite. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 06:28:49