On the growth of nanostructured iron hydroxy-fluorides for Li-ion batteries

被引：13

作者：

Guitian, B. ^{[1
]}

Lascaud, S. ^{[2
]}

Novoa, X. R. ^{[1
]}

Ribeaucourt, L. ^{[2
]}

Vidal, E. ^{[2
]}

机构：

[1] Univ Vigo, EEI, ENCOMAT Grp, Vigo 36310, Spain

[2] EDF R&D, F-77818 Moret Sur Loing, France

来源：

JOURNAL OF POWER SOURCES | 2013年 / 241卷

关键词：

Conversion reaction; Cathode material; Rechargeable lithium batteries; Iron hydroxyfluoride;

D O I：

10.1016/j.jpowsour.2013.04.145

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Lithium ion battery applications such as transportation or renewable energies require cost effective, environmentally friendly and high capacity materials. Conversion reaction with iron based materials at positive electrode is a promising route to reach this target. In this work, iron hydroxyl-fluoride conversion coatings are prepared by an electrochemical way. The structure of the produced coatings is nano-porous with a pore diameter of about 75 nm. An impedance-based methodology is proposed for in-situ characterisation of the conversion coatings during the preparation procedure and enables to optimize the process parameters to get a 3D nano-porous structure. The cycling tests performed in coin-cell versus lithium reference electrode show a promising cycling behaviour for the prepared nano-porous coatings. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：567 / 571

页数：5

共 8 条

[1] A new approach to the determination of the cathodic protection period in zinc-rich paints [J].