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Titolo:
In situ observation of LiNiO2 single-particle fracture during Li-ion extraction and insertion
Autore:
Dokko, K; Nishizawa, M; Horikoshi, S; Itoh, T; Mohamedi, M; Uchida, I;
Indirizzi:
Tohoku Univ, Grad Sch Engn, Dept Appl Chem, Aoba Ku, Sendai, Miyagi 9808579, Japan Tohoku Univ Sendai Miyagi Japan 9808579 Ku, Sendai, Miyagi 9808579, Japan
Titolo Testata:
ELECTROCHEMICAL AND SOLID STATE LETTERS
fascicolo: 3, volume: 3, anno: 2000,
pagine: 125 - 127
SICI:
1099-0062(200003)3:3<125:ISOOLS>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
CELLS; PERFORMANCE; CHEMISTRY; CATHODE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Dokko, K Tohoku Univ, Grad Sch Engn, Dept Appl Chem, Aoba Ku, Sendai, Miyagi 9808579, Japan Tohoku Univ Sendai Miyagi Japan 9808579 i, Miyagi 9808579, Japan
Citazione:
K. Dokko et al., "In situ observation of LiNiO2 single-particle fracture during Li-ion extraction and insertion", EL SOLID ST, 3(3), 2000, pp. 125-127

Abstract

Electrochemical lithium-ion extraction/insertion properties of Li1-xNiO2 single particles were investigated by attaching a filament microelectrode tothe particle in 1 mol/dm(3) LiClO4/ethylene carbonate + propylene carbonate electrolyte. High-resolution cyclic voltammograms and galvanostatic chronopotentiograms were recorded. In addition, we observed in situ particle fracture during charge-discharge using an optical microscope equipped with a charge-coupled device camera. We found that the particle fractures when it is polarized above 4.2 V vs. Li/Li+. This phenomenon was explained by the change in crystal parameters expected to occur for x > 0.75 in Li1-xNiO2. (C)2000 The Electrochemical Society. S1099-0062(99)11-042-3. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 20:08:36