Pyroxene LiVSi2O6 as an electrode material for Li-ion batteries

被引：13

作者：

Ni, Jiangfeng ^{[1
]}

Kawabe, Yoshiteru ^{[2
]}

Morishita, Masanori ^{[2
]}

Watada, Masaharu ^{[2
]}

Takeichi, Nobuhiko ^{[1
]}

Sakai, Tetsuo ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Kansai Center, Osaka 5638577, Japan

[2] GS Yuasa Corp, Nishinosho, Kisshoin, Minami Ku, Kyoto 6018520, Japan

来源：

JOURNAL OF POWER SOURCES | 2010年 / 195卷 / 24期

关键词：

Lithium ion battery; Pyroxene; Electrode material; Electrochemical behavior; Synchrotron radiation XRD; ELECTROCHEMICAL PERFORMANCE; CATHODE MATERIAL; LITHIUM;

D O I：

10.1016/j.jpowsour.2010.06.085

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 vanadium metasilicate (LiVSi2O6) with pyroxene structure has been exploited as an electrode material for Li-ion batteries. Galvanostatic charge and discharge tests show that LiVSi2O6 is able to deliver a capacity of 85 mAh g(-1), at 30 degrees C, and a high capacity of 181 mAh g(-1) at 60 degrees C. The high capacity is believed to be due to the reactions of V3+/V4+ and V2+/V3+ redox couples, accompanied by the excess 0.42 Li+ insertion into the lattice forming a Li-rich phase Li1.42VSi2O6. High-energy synchrotron XRD combined with the Rietveld refinement analysis confirms that the electrochemical delithiation-lithiation reaction proceeds by a single phase redox mechanism with an overall volume variation of 1.9% between LiVSi2O6 and its delithiated state, indicating a very stable framework of LiVSi2O6 for Li+ ions extraction-insertion. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：8322 / 8326

页数：5

共 27 条

[1] Raman and FTIR spectroscopic study of LixFePO4 (0 ≤ x ≤ 1) [J].

Burba, CM ;

Frech, R .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (07) :A1032-A1038

[2] 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

[3] The structure and electrochemical performance of LiFeBO3 as a novel Li-battery cathode material [J].

Dong, Y. Z. ;

Zhao, Y. M. ;

Shi, Z. D. ;

An, X. N. ;

Fu, P. ;

Chen, L. .

ELECTROCHIMICA ACTA, 2008, 53 (05) :2339-2345

[4] Materials challenges in present and future wind energy [J].

Hayman, Brian ;

Wedel-Heinen, Jakob ;

Brondsted, Pov .

MRS BULLETIN, 2008, 33 (04) :343-353

[5]

Huang H, 2002, ADV MATER, V14, P1525, DOI 10.1002/1521-4095(20021104)14:21<1525::AID-ADMA1525>3.0.CO

[6]

2-3

[7] A Rietveld-analysis program RIETAN-98 and its applications to zeolites [J].

Izumi, F ;

Ikeda, T .

EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2, 2000, 321-3 :198-203

[8]

JOHNSON CS, 2009, 216 ECS M VIENN AUST

[9] Effect of Fe2P on the electron conductivity and electrochemical performance of LiFePO4 synthesized by mechanical alloying using Fe3+ raw material [J].

Kim, Cheol Woo ;

Park, Jong Suk ;

Lee, Kyung Sub .

JOURNAL OF POWER SOURCES, 2006, 163 (01) :144-150

[10] LiMBO3 (M = Mn, Fe, Co):: synthesis, crystal structure and lithium deinsertion/insertion properties [J].

Legagneur, V ;

An, Y ;

Mosbah, A ;

Portal, R ;

La Salle, AL ;

Verbaere, A ;

Guyomard, D ;

Piffard, Y .

SOLID STATE IONICS, 2001, 139 (1-2) :37-46

← 1 2 3 →