Electrochemical and structural studies of LiCo1/3Mn1/3Fe1/3PO4 as a cathode material for lithium ion batteries

被引：28

作者：

Chen, Yi-Chun ^{[1
]}

Chen, Jin-Ming ^{[2
]}

Hsu, Chia-Haw ^{[2
]}

Lee, Jey-Jau ^{[3
]}

Lin, Tsung-Chi ^{[4
]}

Yeh, Jien-Wei ^{[1
]}

Shih, Han C. ^{[1
,4
]}

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan

[2] Ind Technol Res Inst, Chutung 310, Taiwan

[3] Natl Synchrotron Radiat Res Ctr, Hsinchu 300, Taiwan

[4] Chinese Culture Univ, Inst Mat Sci & Nanotechnol, Taipei 111, Taiwan

来源：

JOURNAL OF POWER SOURCES | 2010年 / 195卷 / 19期

关键词：

Olivine structure; Synchrotron X-ray; diffusivity; Lithium multi-transition metal phosphate; X-RAY-ABSORPTION; LIFEPO4; OLIVINES; FE; LIMN0.25FE0.75PO4; ELECTRODES; BEHAVIOR; ENERGY; CARBON;

D O I：

10.1016/j.jpowsour.2010.01.058

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：

A solid-state reaction to synthesize a lithium multi-transition metal phosphate LiCo1/3Mn1/3Fe1/3PO4 is used in this work, which has a high voltage of 3.72 V and capacity of 140 mAh g(-1) at a 0.05 C rate. From the in-situ XRD analysis, LiCo1/3Mn1/3Fe1/3PO4 has shown a high stability during cell charge/discharge, even operating at 5 V, which is due to the stable olivine structure. Although all the transition metals Co2+, Mn2+ and Fe2+ are at the same 4c site of the LiCo1/3Mn1/3Fe1/3PO4 structure, they seem to have different chemical activities and reflect on the electrochemical performance. The capacity contributed by the Co2+/Co3+ redox couple is only 20 mAh g(-1), which is less than that of the Fe2+/Fe3+ and Mn2+/Mn3+ redox couples. This is because of the fact that the diffusivity of lithium ion for the Co2+/Co3+ redox couple is 10(-16) cm(2) s(-1) which is one order less than that of the Fe2+/Fe3+ and Mn2+/Mn3+ redox couples in LiCo1/3Mn1/3Fe1/3PO4. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：6867 / 6872

页数：6

共 28 条

[1] Study on dynamics of structural transformation during charge/discharge of LiFePO4 cathode
Chang, Hao-Hsun
Chang, Chun-Chih
Wu, Hung-Chun
Yang, Mo-Hua
Sheu, Hwo-Shuenn
Wu, Nae-Lih
[J]. ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (02) : 335 - 339
[2] Electron microscopy study of the LiFePO4 to FePO4 phase transition
Chen, GY
Song, XY
Richardson, TJ
[J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (06) : A295 - A298
[3] The hydrothermal synthesis and characterization of olivines and related compounds for electrochemical applications
Chen, Jiajun
Vacchio, Michael J.
Wang, Shijun
Chernova, Natalya
Zavalij, Peter Y.
Whittingham, M. Stanley
[J]. SOLID STATE IONICS, 2008, 178 (31-32) : 1676 - 1693
[4] In-situ synchrotron X-ray absorption studies of LiMn0.25Fe0.75PO4 as a cathode material for lithium ion batteries
Chen, Yi-Chun
Chen, Jin-Ming
Hsu, Chia-Haw
Lee, Jyh-Fu
Yeh, Jien-Wei
Shih, Han C.
[J]. SOLID STATE IONICS, 2009, 180 (20-22) : 1215 - 1219
[5] Structure studies on LiMn0.25Fe0.75PO4 by in-situ synchrotron X-ray diffraction analysis
Chen, Yi-Chun
Chen, Jin-Ming
Hsu, Chia-Haw
Yeh, Jien-Wei
Shih, Han C.
Chang, Yee-Shyi
Sheu, Hwo-Shuenn
[J]. JOURNAL OF POWER SOURCES, 2009, 189 (01) : 790 - 793
[6] Reducing carbon in LiFePO4/C composite electrodes to maximize specific energy, volumetric energy, and tap density
Chen, ZH
Dahn, JR
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (09) : A1184 - A1189
[7] Electronically conductive phospho-olivines as lithium storage electrodes
Chung, SY
Bloking, JT
Chiang, YM
[J]. NATURE MATERIALS, 2002, 1 (02) : 123 - 128
[8] Structural investigations of LiFePO4 electrodes by Fe X-ray absorption spectroscopy
Deb, A
Bergmann, U
Cairns, EJ
Cramer, SP
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (22) : 7046 - 7049
[9] Size effects on carbon-free LiFePO4 powders
Delacourt, C.
Poizot, P.
Levasseur, S.
Masquelier, C.
[J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (07) : A352 - A355
[10] Kinetic behavior of LiFePO4/C cathode material for lithium-ion batteries
Gao, Fei
Tang, Zhiyuan
[J]. ELECTROCHIMICA ACTA, 2008, 53 (15) : 5071 - 5075

← 1 2 3 →