Formation Mechanism of LiFePO4 Sticks Grown by a Microwave-Assisted Liquid-Phase Process

被引：25

作者：

Carriazo, Daniel ^{[1
,2
]}

Rossell, Marta D. ^{[1
,3
]}

Zeng, Guobo ^{[1
]}

Bilecka, Idalia ^{[1
]}

Erni, Rolf ^{[3
]}

Niederberger, Markus ^{[1
]}

机构：

[1] ETH, Dept Mat, Lab Multifunct Mat, CH-8093 Zurich, Switzerland

[2] CSIC, ICMM, E-28049 Madrid, Spain

[3] EMPA, Swiss Fed Labs Mat Sci & Technol, CH-8600 Dubendorf, Switzerland

来源：

SMALL | 2012年 / 8卷 / 14期

基金：

瑞士国家科学基金会;

关键词：

cathode materials; solvothermal synthesis; morphology; growth mechanisms; LITHIUM-ION BATTERIES; CATHODE MATERIAL; SOLVOTHERMAL SYNTHESIS; ENERGY-STORAGE; NANOPARTICLES;

D O I：

10.1002/smll.201102515

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A time-dependent study on the formation of LiFePO4 with olivine-type structure is presented. The material is synthesized through a non-aqueous route in benzyl alcohol assisted by microwave radiation. The LiFePO4 forms with an anisotropic morphology of microscale stick-like particles. The detailed structure of these particles and their evolution with reaction time is revealed by transmission electron microscopy; a 3D reconstruction of a particle by electron tomography provides insight into the formation mechanism of these sticks. Without applying a thermal post-annealing treatment or a carbon coating, the electrochemical behavior of the LiFePO4 microsticks is assessed for the preparation of cathodes in lithium-ion batteries.

引用

页码：2231 / 2238

页数：8

共 39 条

[1] Building better batteries [J].

Armand, M. ;

Tarascon, J. -M. .

NATURE, 2008, 451 (7179) :652-657

[2] One-minute synthesis of crystalline binary and ternary metal oxide nanoparticles [J].

Bilecka, Idalia ;

Djerdj, Igor ;

Niederberger, Markus .

CHEMICAL COMMUNICATIONS, 2008, (07) :886-888

[3] Microwave-assisted solution synthesis of doped LiFePO4 with high specific charge and outstanding cycling performance [J].

Bilecka, Idalia ;

Hintennach, Andreas ;

Rossell, Marta D. ;

Xie, Dan ;

Novak, Petr ;

Niederberger, Markus .

JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (16) :5881-5890

[4] Microwave chemistry for inorganic nanomaterials synthesis [J].

Bilecka, Idalia ;

Niederberger, Markus .

NANOSCALE, 2010, 2 (08) :1358-1374

[5] Efficient microwave-assisted synthesis of LiFePO4 mesocrystals with high cycling stability [J].

Bilecka, Idalia ;

Hintennach, Andreas ;

Djerdj, Igor ;

Novak, Petr ;

Niederberger, Markus .

JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (29) :5125-5128

[6] Kinetic and Thermodynamic Aspects in the Microwave-Assisted Synthesis of ZnO Nanoparticles in Benzyl Alcohol [J].

Bilecka, Idalia ;

Elser, Pierre ;

Niederberger, Markus .

ACS NANO, 2009, 3 (02) :467-477

[7]

Bruce P.G., 2008, Angew. Chem, V120, P2972

[8] Nanomaterials for rechargeable lithium batteries [J].

Bruce, Peter G. ;

Scrosati, Bruno ;

Tarascon, Jean-Marie .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (16) :2930-2946

[9] Synthesis of nanocrystals and morphology control of hydrothermally prepared LiFePO4 [J].

Ellis, B. ;

Kan, Wang Hay ;

Makahnouk, W. R. M. ;

Nazar, L. F. .

JOURNAL OF MATERIALS CHEMISTRY, 2007, 17 (30) :3248-3254

[10] Room-temperature single-phase Li insertion/extraction in nanoscale LixFePO4 [J].

Gibot, Pierre ;

Casas-Cabanas, Montse ;

Laffont, Lydia ;

Levasseur, Stephane ;

Carlach, Philippe ;

Hamelet, Stephane ;

Tarascon, Jean-Marie ;

Masquelier, Christian .

NATURE MATERIALS, 2008, 7 (09) :741-747

← 1 2 3 4 →