Material design concept for Fe-substituted Li2MnO3-based positive electrodes

被引：74

作者：

Tabuchi, Mitsuharu ^{[1
]}

Nabeshima, Yoko ^{[1
]}

Ado, Kazuaki ^{[1
]}

Shikano, Masahiro ^{[1
]}

Kageyama, Hiroyuki ^{[1
]}

Tatsumi, Kuniaki ^{[1
]}

机构：

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

来源：

JOURNAL OF POWER SOURCES | 2007年 / 174卷 / 02期

关键词：

lithium-ion batteries; Fe-substituted; XRD;

D O I：

10.1016/j.jpowsour.2007.06.247

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：

Fe-substituted Li2MnO3 (Li1+x(FeyMn1-y)(1-x)O-2, 0 <= x <= 1/3, <= y <= 0.7) was synthesized using a combination of coprecipitation, hydrothermal, and heat-treatment methods. It exhibits high initial specific capacity greater than 200 mAh g(-1) and small capacity, which fades up to the 50th cycle (> 150 mAh g(-1) at the 50th cycle) under electrochemical cycle testing at 60 degrees C. The attractive electrode properties appeared by controlling the chemical composition (x > 0.05, 0.3 <= y <= 0.5) and high specific surface area (>20m(2) g(-1)). The Fe-substituted Li2MnO3 is an attractive candidate as a novel 3 V-class positive electrode material. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：554 / 559

页数：6

共 7 条

[1] Preparation of LiFeO2 with alpha-NaFeO2-type structure using a mixed-alkaline hydrothermal method
Ado, K
Tabuchi, M
Kobayashi, H
Kageyama, H
Nakamura, O
Inaba, Y
Kanno, R
Takagi, M
Takeda, Y
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (07) : L177 - L180
[2] A Rietveld-analysis program RIETAN-98 and its applications to zeolites
Izumi, F
Ikeda, T
[J]. EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2, 2000, 321-3 : 198 - 203
[3] 6Li MAS NMR studies of the local structure and electrochemical properties of Cr-doped lithium manganese and lithium cobalt oxide cathode materials for lithium-ion batteries
Pan, CJ
Lee, YJ
Ammundsen, B
Grey, CP
[J]. CHEMISTRY OF MATERIALS, 2002, 14 (05) : 2289 - 2299
[4] The effects of preparation condition and dopant on the electrochemical property for Fe-substituted Li2MnO3
Tabuchi, M
Nakashima, A
Ado, K
Sakaebe, H
Kobayashi, H
Kageyama, H
Tatsumi, K
Kobayashi, Y
Seki, S
Yamanaka, A
[J]. JOURNAL OF POWER SOURCES, 2005, 146 (1-2) : 287 - 293
[5] Heat-treatment effect on phase stability, cation distribution, chemical composition, and electrochemical behavior for Fe-substituted Li2MnO3
Tabuchi, M
Nakashima, A
Ado, K
Kageyarna, H
Tatsumi, K
[J]. CHEMISTRY OF MATERIALS, 2005, 17 (18) : 4668 - 4677
[6] Synthesis, cation distribution, and electrochemical properties of Fe-substituted Li2MnO3 as a novel 4 V positive electrode material
Tabuchi, M
Nakashima, A
Shigemura, H
Ado, K
Kobayashi, H
Sakaebe, H
Kageyama, H
Nakamura, T
Kohzaki, M
Hirano, A
Kanno, R
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (05) : A509 - A524
[7] TABUCHI M, 2005, 46 BATT S JAP NAG 3B, P234

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