Electrochemical properties of lithium-rich Li1+x(Mn1/3Ni1/3Co1/3)1-xO2 at high potential

被引：27

作者：

Chen, Zonghai

Sun, Y. -K.

Amine, K.

机构：

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

[2] Hanyang Univ, Ctr Informat & Commun Mat, Dept Chem Engn, Seoul 133791, South Korea

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2006年 / 153卷 / 10期

关键词：

D O I：

10.1149/1.2234567

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical properties of lithium-rich Li-1.1(Mn1/3Ni1/3Co1/3)(0.9)O-2 positive electrode material were carefully investigated to understand its performance limitations as an advanced positive electrode material for lithium- ion batteries. The experimental evidence on the initial irreversible capacity loss, the capacity retention, and the ac impedance data consistently demonstrated that Li-1.1(Mn1/3Ni1/3Co1/3)(0.9)O-2 had an intrinsic critical upper cutoff potential at about 4.3 V vs Li+/Li, beyond which the electrochemical performance of the active material deteriorated significantly. This detrimental impact at high potential (> 4.3 V vs Li+/Li) was related to the oxidative reaction of the electrolyte by the highly delithiated positive electrode material. (c) 2006 The Electrochemical Society.

引用

收藏

页码：A1818 / A1822

页数：5

相关论文

共 26 条

[1] Li(Ni1/3Co1/3Mn1/3)O2 as a suitable cathode for high power applications [J].

Belharouak, I ;

Sun, YK ;

Liu, J ;

Amine, K .

JOURNAL OF POWER SOURCES, 2003, 123 (02) :247-252

[2] A combined computational/experimental study on LiNi1/3Co1/3Mn1/3O2 [J].

Hwang, BJ ;

Tsai, YW ;

Carlier, D ;

Ceder, G .

CHEMISTRY OF MATERIALS, 2003, 15 (19) :3676-3682

[3] Synthesis and improved electrochemical performance of Al (OH)3-coated Li[Ni1/3Mn1/3Co1/3]O2 cathode materials at elevated temperature [J].

Jang, SB ;

Kang, SH ;

Amine, K ;

Bae, YC ;

Sun, YK .

ELECTROCHIMICA ACTA, 2005, 50 (20) :4168-4173

[4] Reactivity of Liy[NixCo1-2xMnx]O2 (x=0.1, 0.2, 0.35, 0.45, and 0.5; y=0.3, 0.5) with nonaqueous solvents and electrolytes studied by ARC [J].

Jiang, J ;

Eberman, KW ;

Krause, LJ ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (03) :A566-A569

[5] Influence of LiF additions on Li[NixCo1-2xMnx]O2 materials -: Sintering, structure, and lithium insertion properties [J].

Jouanneau, S ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (10) :A1749-A1754

[6] Effect of the sintering agent, B2O3, on Li[NixCo1-2xMnx]O2 materials -: Density, structure, and electrochemical properties [J].

Jouanneau, S ;

Bahmet, W ;

Eberman, KW ;

Krause, LJ ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (11) :A1789-A1796

[7] Synthesis, characterization, and electrochemical behavior of improved Li[NixCo1-2xMnx]O2 (0.1 ≤ x ≤ 0.5) [J].

Jouanneau, S ;

Eberman, KW ;

Krause, LJ ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (12) :A1637-A1642

[8] Morphology and Safety of Li[NixCo1-2xMnx]O2 (0 ≤ x ≤ 1/2) [J].

Jouanneau, S ;

MacNeil, DD ;

Lu, Z ;

Beattie, SD ;

Murphy, G ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (10) :A1299-A1304

[9] Synthesis and electrochemical properties of Li[Ni1/3Co1/3Mn(1/3-x)Mgx]O2-yFy via coprecipitation [J].

Kim, GH ;

Myung, ST ;

Bang, HJ ;

Prakash, J ;

Sun, YK .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2004, 7 (12) :A477-A480

[10] XAS investigation of inhomogeneous metal-oxygen bond covalency in bulk and surface for charge compensation in li-ion battery cathode Li[Ni1/3Co1/3Mn1/3]O2 material [J].

Kim, MG ;

Shin, HJ ;

Kim, JH ;

Park, SH ;

Sun, YK .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (07) :A1320-A1328