Intermittent X-ray diffraction study of kinetics of delithiation in nano-scale LiFePO4

被引：27

作者：

Jones, Jacob L. ^{[1
]}

Hung, Jui-Ting ^{[1
]}

Meng, Ying S. ^{[1
]}

机构：

[1] Univ Florida, Gainesville, FL 32611 USA

来源：

JOURNAL OF POWER SOURCES | 2009年 / 189卷 / 01期

基金：

美国国家科学基金会;

关键词：

Lithium battery; LiFePO4; Kinetics; X-ray diffraction; Chemical delithiation; LITHIUM; DEINTERCALATION; SPECTROSCOPY; COMPOSITES; TRANSITION; BATTERIES;

D O I：

10.1016/j.jpowsour.2008.08.055

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：

Using intermittent X-ray diffraction, an understanding of the time dependence of phase evolution in the electrode materials during lithium extraction can be determined. Phase evolution in both coated and uncoated nano-scale LiFePO4 samples upon chemical delithiation has been investigated by this technique. Different kinetic behaviors are observed in the two samples and the technique helps to understand the delithiation mechanism in the nano-scale LiFePO4 and is able to resolve phase evolution in seconds' resolution. (C) 2008 Elsevier B.V. All rights reserved.

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收藏

页码：702 / 705

页数：4

相关论文

共 20 条

[1] Lithium extraction/insertion in LiFePO4:: an X-ray diffraction and Mossbauer spectroscopy study [J].

Andersson, AS ;

Kalska, B ;

Häggström, L ;

Thomas, JO .

SOLID STATE IONICS, 2000, 130 (1-2) :41-52

[2] Electron microscopy study of the LiFePO4 to FePO4 phase transition [J].

Chen, GY ;

Song, XY ;

Richardson, TJ .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (06) :A295-A298

[3] Size effects on carbon-free LiFePO4 powders [J].

Delacourt, C. ;

Poizot, P. ;

Levasseur, S. ;

Masquelier, C. .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (07) :A352-A355

[4] Electrochemical and electrical properties of Nb- and/or C-containing LiFePO4 composites [J].

Delacourt, C ;

Wurm, C ;

Laffont, L ;

Leriche, JB ;

Masquelier, C .

SOLID STATE IONICS, 2006, 177 (3-4) :333-341

[5] Lithium deintercalation in LiFePO4 nanoparticles via a domino-cascade model [J].

Delmas, C. ;

Maccario, M. ;

Croguennec, L. ;

Le Cras, F. ;

Weill, F. .

NATURE MATERIALS, 2008, 7 (08) :665-671

[6] Porous olivine composites synthesized by sol-gel technique [J].

Dominko, R ;

Bele, M ;

Gaberscek, M ;

Remskar, M ;

Hanzel, D ;

Goupil, JM ;

Pejovnik, S ;

Jamnik, J .

JOURNAL OF POWER SOURCES, 2006, 153 (02) :274-280

[7] Nano-network electronic conduction in iron and nickel olivine phosphates [J].

Herle, PS ;

Ellis, B ;

Coombs, N ;

Nazar, LF .

NATURE MATERIALS, 2004, 3 (03) :147-152

[8] Synthesis and characterization of nano-sized LiFePO4 cathode materials prepared by a citric acid-based sol-gel route [J].

Hsu, KF ;

Tsay, SY ;

Hwang, BJ .

JOURNAL OF MATERIALS CHEMISTRY, 2004, 14 (17) :2690-2695

[9] Approaching theoretical capacity of LiFePO4 at room temperature at high rates [J].

Huang, H ;

Yin, SC ;

Nazar, LF .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (10) :A170-A172

[10] Atomic-scale investigation of defects, dopants, and lithium transport in the LiFePO4 olivine-type battery material [J].

Islam, MS ;

Driscoll, DJ ;

Fisher, CAJ ;

Slater, PR .

CHEMISTRY OF MATERIALS, 2005, 17 (20) :5085-5092