Determination of the Lamb-Mossbauer factors of LiFePO4 and FePO4 for electrochemical in situ and operando measurements in Li-ion batteries

被引：41

作者：

Aldon, L. ^{[1
]}

Perea, A. ^{[1
]}

Womes, M. ^{[1
]}

Ionica-Bousquet, C. M. ^{[1
]}

Jumas, J. -C. ^{[1
]}

机构：

[1] Univ Montpellier 2, ICGM AIME, CNRS UMR 5253, F-34095 Montpellier 5, France

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2010年 / 183卷 / 01期

关键词：

Lithium battery; Positive electrode materials; LiFePO4; FePO4; Olivine; Mossbauer spectrocopy; Debye temperature; X-RAY-DIFFRACTION; LITHIUM; IRON; SPECTROSCOPY; PERFORMANCE; MECHANISM; ELECTRODE; GLASSES; SN;

D O I：

10.1016/j.jssc.2009.10.022

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Fe-57 Mossbauer spectroscopy is a powerful tool to investigate redox reactions during in electrochemical lithium insertion/extraction processes. Electrochemical oxidation of (LiFeO4)-O-II (triphylite) in Li-ion batteries results in (FePO4)-P-III (heterosite). LiFePO4 Was synthesized by solid state reaction at 800 degrees C under At How from Li2CO3, FeC2O4 center dot 2H(2)O and NH4H2PO4 precursors in stoichicimetric composition. FePO4 was prepared from chemical oxidation of LiFePO4 using bromine as oxidative agent. For both materials a complete Fe-57 Mossbauer study as a function of the temperature has been carried out. The Debye temperatures are found to be theta(m)=336K for LiFePO4 and theta(m)=3591 < for FePO4, leading to Lamb-Mossbauer factors f(300 K) = 0.73 and 0.77, respectively. These data will be useful for a precise estimation of the relative amounts of each species in a mixture. (C) 2009 Elsevier Inc. All rights reserved.

引用

页码：218 / 222

页数：5

共 33 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] FeP: Another attractive anode for the Li-ion battery enlisting a reversible two-step insertion/conversion process [J].

Boyanov, S. ;

Bernardi, J. ;

Gillot, F. ;

Dupont, L. ;

Womes, M. ;

Tarascon, J. -M. ;

Monconduit, L. ;

Doublet, M. -L. .

CHEMISTRY OF MATERIALS, 2006, 18 (15) :3531-3538

[3] MOSSBAUER EFFECT IN SURFACE STUDIES - FE57 ON W AND ON AG [J].

BURTON, JW ;

GODWIN, RP .

PHYSICAL REVIEW, 1967, 158 (02) :218-&

[4] LATTICE SOFTENING IN NANOMETER-SIZE IRON PARTICLES [J].

CHILDRESS, JR ;

CHIEN, CL ;

ZHOU, MY ;

SHENG, P .

PHYSICAL REVIEW B, 1991, 44 (21) :11689-11696

[5] Determination of the Debye temperature of the σ-phase Fe-Cr alloys -: art. no. 212301 [J].

Cieslak, J ;

Dubiel, SM ;

Zukrowski, J ;

Reissner, M ;

Steiner, W .

PHYSICAL REVIEW B, 2002, 65 (21) :1-3

[6] LATTICE-DYNAMICS IN COVALENT SOLIDS - SN IN SNS2-XSEX (0 LESS THAN OR EQUAL TO X LESS THAN OR EQUAL TO 2) [J].

HERBER, RH ;

SMELKINSON, AE ;

SIENKO, MJ ;

SCHNEEMEYER, LF .

JOURNAL OF CHEMICAL PHYSICS, 1978, 68 (08) :3705-3712

[7] MOSSBAUER LATTICE TEMPERATURE OF TETRAGONAL (P4 NMM) SNO [J].

HERBER, RH .

PHYSICAL REVIEW B, 1983, 27 (07) :4013-4017

[8] Electrochemical reactions of iron borates with lithium: Electrochemical and in situ Mossbauer and X-ray absorption studies [J].

Ibarra-Palos, A ;

Darie, C ;

Proux, O ;

Hazemann, JL ;

Aldon, L ;

Jumas, JC ;

Morcrette, M ;

Strobel, P .

CHEMISTRY OF MATERIALS, 2002, 14 (03) :1166-1173

[9] Disorder in LixFePO4:: From glasses to nanocrystallites [J].

Jozwiak, P. ;

Garbarczyk, J. ;

Gendron, F. ;

Mauger, A. ;

Julien, C. M. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2008, 354 (17) :1915-1925

[10]

Jumas JC, 2005, J OPTOELECTRON ADV M, V7, P177

← 1 2 3 4 →