PREPARATION OF LIFEO2 WITH ALPHA-NAFEO2-TYPE STRUCTURE USING A MIXED-ALKALINE HYDROTHERMAL METHOD

Authors
ADO K TABUCHI M KOBAYASHI H KAGEYAMA H NAKAMURA O INABA Y KANNO R TAKAGI M TAKEDA Y
Citation
K. Ado et al., PREPARATION OF LIFEO2 WITH ALPHA-NAFEO2-TYPE STRUCTURE USING A MIXED-ALKALINE HYDROTHERMAL METHOD, Journal of the Electrochemical Society, 144(7), 1997, pp. 177-180
Citations number
19
Categorie Soggetti
Electrochemistry
Journal title
Journal of the Electrochemical Society → ACNP
ISSN journal
00134651
Volume
144
Issue
7
Year of publication
1997
Pages
177 - 180
Database
ISI
SICI code
0013-4651(1997)144:7<177:POLWAS>2.0.ZU;2-V
Abstract
A metastable form of LiFeO2 with alpha-NaFeO2-type structure (layered LiFeO2) was synthesized directly from alpha-FeOOH or FeCl3 . 6H(2)O by hydrothermal reaction at 230 degrees C using aqueous mixed-alkaline s olutions such as LiOH . H2O-KOH or LiOH . H2O-NaOH. Highly crystallize d samples could be obtained by a one-step process. The yield of the la yered LiFeO, strongly depends on the composition of the starting mixtu re. Preliminary tests on electrochemical lithium deintercalation/inter calation show poor performance between 4.5 and 1.5 V.