Electrochemical behaviors of Li [Li(1-x)/3Mn(2-x)/3Nix/3Cox/3]O2 cathode series (0 < x < 1) synthesized by sucrose combustion process for high capacity lithium ion batteries

被引：50

作者：

Kim, Gu-Yeon ^{[1
]}

Yi, Seung-Beob ^{[2
]}

Park, Yong Joon ^{[3
]}

Kim, Ho-Gi ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea

[2] SAMSUNG SDI, Energy Business Div, Dev Team, Cheonan 330300, Chungcheongnam, South Korea

[3] Kyonggi Univ, Div Adv Ind Engn, Suwon, Kyonggi Do, South Korea

来源：

MATERIALS RESEARCH BULLETIN | 2008年 / 43卷 / 12期

关键词：

Inorganic compounds; Chemical synthesis; XAFS (EXAFS and XANES); Electrochemical properties;

D O I：

10.1016/j.materresbull.2008.01.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A mixed cathode material between Li2MnO3 and Li[Mn1/3Ni1/3Co1/3]O-2 for high capacity lithium secondary batteries was introduced in this study. It was prepared using the sucrose combustion process because this is a simple process. The oxidation states of Mn, Co and Ni ions in the pristine Li[Li(1-x)/3Mn(2-x)/3Nix/3Cox/3]O-2 compounds were confirmed to be tetravalent, trivalent and divalent, respectively. via XANES measurements. Electrochemical charge/discharge studies showed that the highest first discharge capacity of 224 mAh/g was obtained in composition of x = 0.5 at a 0.2 C rate. The oxidation state of the Co and Ni ions in the Li[Li1/6Mn1/2Ni1/6Co1/6]O-2 changed to higher oxidation states, but that of the Mn ions did not change. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：3543 / 3552

页数：10

共 20 条

[1]

Ammundsen B, 2001, ADV MATER, V13, P943, DOI 10.1002/1521-4095(200107)13:12/13<943::AID-ADMA943>3.0.CO

[2]

2-J

[3] In situ X-ray absorption study of a layered manganese-chromium oxide-based cathode material [J].

Balasubramanian, M ;

McBreen, J ;

Davidson, IJ ;

Whitfield, PS ;

Kargina, I .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (02) :A176-A184

[4] Comparison of the electrochemical behaviors of stoichiometric LiNi1/3Co1/3Mn1/3O2 and lithium excess Li1.03(Ni1/3Co1/3Mn1/3)0.97O2 [J].

Choi, J ;

Manthiram, A .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2004, 7 (10) :A365-A368

[5] Structural and electrochemical properties of (1-x) Li[Ni0.2Li0.20Mn0.60]O2-xLi[Co0.50Li0.167Mn0.333]O2 for lithium secondary batteries [J].

Hong, YS ;

Park, YJ ;

Ryu, KS ;

Chang, SH ;

Shin, YJ .

JOURNAL OF POWER SOURCES, 2005, 147 (1-2) :214-219

[6] Lithium metal rechargeable cells using Li2MnO3 as the positive electrode [J].

Kalyani, P ;

Chitra, S ;

Mohan, T ;

Gopukumar, S .

JOURNAL OF POWER SOURCES, 1999, 80 (1-2) :103-106

[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] Synthesis and electrochemical properties of layer-structured 0.5Li(Ni0.5Mn0.5)O2-0.5Li(Li1/3Mn2/3)O2 solid mixture [J].

Kang, SH ;

Amine, K .

JOURNAL OF POWER SOURCES, 2003, 124 (02) :533-537

[9] Synthesis, structure, and electrochemical behavior of Li[NixLi1/3-2x/3Mn2/3-x/3]O2 [J].

Lu, ZH ;

Beaulieu, LY ;

Donaberger, RA ;

Thomas, CL ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (06) :A778-A791

[10] Understanding the anomalous capacity of Li/Li[NixLi(1/3-2x/3)Mn(2/3-x/3]O2 cells using in situ X-ray diffraction and electrochemical studies [J].

Lu, ZH ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (07) :A815-A822

← 1 2 →

Electrochemical behaviors of Li [Li(1-x)/3Mn(2-x)/3Nix/3Cox/3]O2 cathode series (0 &lt; x &lt; 1) synthesized by sucrose combustion process for high capacity lithium ion batteries

Electrochemical behaviors of Li [Li(1-x)/3Mn(2-x)/3Nix/3Cox/3]O2 cathode series (0 < x < 1) synthesized by sucrose combustion process for high capacity lithium ion batteries