Improved Rate Capability in a High-Capacity Layered Cathode Material via Thermal Reduction

被引：70

作者：

Abouimrane, Ali ^{[1
]}

Compton, Owen C. ^{[1
,2
]}

Deng, Haixia ^{[1
]}

Belharouak, Ilias ^{[1
]}

Dikin, Dimtriy A. ^{[3
]}

Nguyen, SonBinh T. ^{[1
,2
]}

Amine, Khalil ^{[1
]}

机构：

[1] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA

[2] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

[3] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2011年 / 14卷 / 09期

关键词：

LITHIUM-ION BATTERIES; SITU X-RAY; LI2MNO3; ELECTRODES; OXIDE; XPS; NI;

D O I：

10.1149/1.3597655

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Thermal treatment of the high-capacity integrated-structure cathode material Li(2)MnO(3)-LiMO(2) (M = Mn, Ni, and Co) under a reductive H(2) atmosphere was investigated as a means to improve its rate capability when incorporated into a Lithium-ion battery (LIB). The heat-treated electrode, with a composition of Li(1.12)Mn(0.55)Ni(0.145)Co(0.1)O(2), shows a better coulombic charge-discharge efficiency and a good cycleability than the pristine material. This improvement can be attributed to a reduction in the valence of some Mn ions from 4(+) to 3(+), as monitored by X-ray photoelectron spectroscopy. (C) 2011 The Electrochemical Society. [DOI: 10.1149/1.3597655] All rights reserved.

引用

页码：A126 / A129

页数：4

共 22 条

[1] A new three-volt spinel Li1+xMn1.5Ni0.5O4 for secondary lithium batteries [J].

Amine, K ;

Tukamoto, H ;

Yasuda, H ;

Fujita, Y .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (05) :1607-1613

[2] Structural variations and cation distributions in Mn3-xCoxO4 (0 ≤ x ≤ 3) dense ceramics using neutron diffraction data [J].

Bordeneuve, H. ;

Tenailleau, C. ;

Guillemet-Fritsch, S. ;

Smith, R. ;

Suard, E. ;

Rousset, A. .

SOLID STATE SCIENCES, 2010, 12 (03) :379-386

[3] Structure and electrical properties of single-phase cobalt manganese oxide spinels Mn3-xCoxO4 sintered classically and by spark plasma sintering (SPS) [J].

Bordeneuve, Helene ;

Guillemet-Fritsch, Sophie ;

Rousset, Abel ;

Schuurman, Sophie ;

Poulain, Veronique .

JOURNAL OF SOLID STATE CHEMISTRY, 2009, 182 (02) :396-401

[4] Preparation of layered Li[Ni1/3Mn1/3CO1/3]O2 as a cathode for lithium secondary battery by carbonate coprecipitation method [J].

Cho, TH ;

Park, SM ;

Yoshio, M .

CHEMISTRY LETTERS, 2004, 33 (06) :704-705

[5] LixNi0.25Mn0.75Oy (0.5 ≤ x ≤ 2, 2 ≤ y ≤ 2.75) compounds for high-energy lithium-ion batteries [J].

Deng, Haixia ;

Belharouak, Ilias ;

Sun, Yang-Kook ;

Amine, Khalil .

JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (26) :4510-4516

[6] The significance of the Li2MnO3 component in 'composite' xLi2MnO3 • (1-x)LiMn0.5Ni0.5O2 electrodes [J].

Johnson, CS ;

Kim, JS ;

Lefief, C ;

Li, N ;

Vaughey, JT ;

Thackeray, MM .

ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (10) :1085-1091

[7] Electrochemical and ex situ X-ray study of Li-(Li0.2Ni0.2Mn0.6)O2 cathode material for Li secondary batteries [J].

Kang, SH ;

Sun, YK ;

Amine, K .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2003, 6 (09) :A183-A186

[8] XPS and IR characterization of manganese ions deposited on alumina [J].

Kantcheva, M ;

Kucukkal, MU ;

Suzer, S .

JOURNAL OF MOLECULAR STRUCTURE, 1999, 482 :19-22

[9] Role of transition metals in layered Li[Ni,Co,Mn]O2 under electrochemical operation [J].

Kim, JM ;

Chung, HT .

ELECTROCHIMICA ACTA, 2004, 49 (21) :3573-3580

[10] Optimization of Ni2+/Ni3+ ratio in layered Li(Ni,Mn,Co)O2 cathodes for better electrochemistry [J].

Kosova, N. V. ;

Devyatkina, E. T. ;

Kaichev, V. V. .

JOURNAL OF POWER SOURCES, 2007, 174 (02) :965-969

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