Electrochemical properties of P2-phase Na0.74CoO2 compounds as cathode material for rechargeable sodium-ion batteries

被引：146

作者：

Ding, J. J. ^{[1
]}

Zhou, Y. N. ^{[2
]}

Sun, Q. ^{[1
]}

Yu, X. Q. ^{[2
]}

Yang, X. Q. ^{[2
]}

Fu, Z. W. ^{[1
]}

机构：

[1] Fudan Univ, Dept Chem & Laser Chem, Shanghai Key Lab Mol Catalysts & Innovat Mat, Shanghai 200433, Peoples R China

[2] Brookhaven Natl Lab, Upton, NY 11973 USA

来源：

ELECTROCHIMICA ACTA | 2013年 / 87卷

关键词：

Sodium ion battery; Sodium cobalt oxides; Cathode material; ELECTROLYTE; CHALLENGES;

D O I：

10.1016/j.electacta.2012.09.058

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

P2-phase Na0.74CoO2 cathode material prepared by a solid-state method exhibits the specific discharge capacity of 107 mAh g(-1) at 0.1 C with good cycling performance for rechargeable sodium ion batteries. The voltage polarization between charging and discharging at 0.1 C rate is about 150-250 mV and the coulombic efficiency in each cycle is about 89%. The expansion and compression in c-axis of the NaxCoO2 unit cell during the Na intercalation/deintercalation is revealed by ex situ XRD. XPS and in situ XAS data directly confirm that deintercalation/intercalation of Na ions from/into the layered structure proceeds with the Co3+/Co4+ redox reaction. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：388 / 393

页数：6

共 29 条

[1] A sodium layered manganese oxides as 3 V cathode materials for secondary lithium batteries [J].

Bach, S. ;

Pereira-Ramos, J. P. ;

Willmann, P. .

ELECTROCHIMICA ACTA, 2006, 52 (02) :504-510

[2] Refinement of the structure of Na0.74CoO2 using neutron powder diffraction [J].

Balsys, RJ ;

Davis, RL .

SOLID STATE IONICS, 1997, 93 (3-4) :279-282

[3]

Berthelot R, 2011, NAT MATER, V10, P74, DOI [10.1038/nmat2920, 10.1038/NMAT2920]

[4] ELECTROCHEMICAL BEHAVIOR OF THE PHASES NAXCOO2 [J].

BRACONNIER, JJ ;

DELMAS, C ;

FOUASSIER, C ;

HAGENMULLER, P .

MATERIALS RESEARCH BULLETIN, 1980, 15 (12) :1797-1804

[5] Sodium Ion Mobility in NaxCoO2 (0.6 < x < 0.75) Cobaltites Studied by 23Na MAS NMR [J].

Carlier, Dany ;

Blangero, Maxime ;

Menetrier, Michel ;

Pollet, Michael ;

Doumerc, Jean-Pierre ;

Delmas, Claude .

INORGANIC CHEMISTRY, 2009, 48 (15) :7018-7025

[6] Improving the capacity retention of LiCoO2 cycled to 4.5 V by heat-treatment [J].

Chen, ZH ;

Dahn, JR .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2004, 7 (01) :A11-A14

[7] Layered Na0.71CoO2: a powerful candidate for viable and high performance Na-batteries [J].

D'Arienzo, Massimiliano ;

Ruffo, Riccardo ;

Scotti, Roberto ;

Morazzoni, Franca ;

Maria, Claudio Maria ;

Polizzi, Stefano .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2012, 14 (17) :5945-5952

[8] In situ x-ray absorption spectroscopic study of the Li[Ni1/3Co1/3Mn1/3]O2 cathode material -: art. no. 113523 [J].

Deb, A ;

Bergmann, U ;

Cramer, SP ;

Cairns, EJ .

JOURNAL OF APPLIED PHYSICS, 2005, 97 (11)

[9] A multifunctional 3.5 V iron-based phosphate cathode for rechargeable batteries [J].

Ellis, B. L. ;

Makahnouk, W. R. M. ;

Makimura, Y. ;

Toghill, K. ;

Nazar, L. F. .

NATURE MATERIALS, 2007, 6 (10) :749-753

[10] X-ray and electron diffraction studies of superlattices and long-range three-dimensional Na ordering in γ-NaxCoO2 (x=0.71 and 0.84) [J].

Huang, F. -T. ;

Chu, M. -W. ;

Shu, G. J. ;

Sheu, H. S. ;

Chen, C. H. ;

Liu, L. -K. ;

Lee, Patrick A. ;

Chou, F. C. .

PHYSICAL REVIEW B, 2009, 79 (01)

← 1 2 3 →