Lithium transport through sputter deposited lithium cobalt dioxide thin film electrode

被引：0

作者：

Pyun, SI ^{[1
]}

Shin, HC ^{[1
]}

机构：

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

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2000年 / 341卷

关键词：

lithium cobalt dioxide thin film; potentiostatic current transient; cell-impedance; phase transformation; numerical analysis;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Lithium transport through lithium cobalt dioxide thin film electrode prepared by rf-magnetron sputtering was investigated in 1M solution of LiClO4 in propylene carbonate using cyclic voltammetry, galvanostatic intermittent titration technique (GITT) and potentiostatic current transient technique. The cathodic and anodic current transients exhibited the non-Fickian behaviour of lithium transport when the applied potential steps encountered potential plateaus near 3.91 VLi/Li+, determined from GITT. It is suggested that the occurrence of this abnormal behaviour during lithium intercalation and deintercalation is accompanied by a 'diffusion-controlled' alpha/beta phase transformation and 'cell-impedance-controlled' phase transformation, respectively. Lithium transport through the electrode comprising two phases of alpha and beta has been theoretically considered by a numerical analysis of the phase transformation.

引用

页码：951 / 958

页数：8

共 11 条

[1] Electrochemical lithium intercalation into and deintercalation from vanadium oxide electrode by using potentiostatic current transient technique [J].

Bae, JS ;

Pyun, SI .

SOLID STATE IONICS, 1996, 90 (1-4) :251-260

[2]

CHOI YM, 1995, J POWER SOURCES, V56, P25, DOI 10.1016/0378-7753(95)80004-Z

[3] Lithium transport through porous Li1-δCoO2 electrode:: analysis of current transient [J].

Choi, YM ;

Pyun, SI ;

Paulsen, JM .

ELECTROCHIMICA ACTA, 1998, 44 (04) :623-632

[4] RECHARGEABLE LINIO2 CARBON CELLS [J].

DAHN, JR ;

VONSACKEN, U ;

JUZKOW, MW ;

ALJANABY, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (08) :2207-2211

[5] LIXCOO2 "(OLESS-THANXLESS-THAN-OR-EQUAL-TO1) - A NEW CATHODE MATERIAL FOR BATTERIES OF HIGH-ENERGY DENSITY [J].

MIZUSHIMA, K ;

JONES, PC ;

WISEMAN, PJ ;

GOODENOUGH, JB .

MATERIALS RESEARCH BULLETIN, 1980, 15 (06) :783-789

[6] ELECTROCHEMICAL AND INSITU X-RAY-DIFFRACTION STUDIES OF LITHIUM INTERCALATION IN LIXCOO2 [J].

REIMERS, JN ;

DAHN, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (08) :2091-2097

[7] An investigation of the electrochemical intercalation of lithium into a Li1-δCoO2 electrode based upon numerical analysis of potentiostatic current transients [J].

Shin, HC ;

Pyun, SI .

ELECTROCHIMICA ACTA, 1999, 44 (13) :2235-2244

[8]

SHIN HC, UNPUB ELECTROCHIM AC

[9] ELECTROCHEMICAL EXTRACTION OF LITHIUM FROM LIMN2O4 [J].

THACKERAY, MM ;

JOHNSON, PJ ;

DEPICCIOTTO, LA ;

BRUCE, PG ;

GOODENOUGH, JB .

MATERIALS RESEARCH BULLETIN, 1984, 19 (02) :179-187

[10] PREPARATION OF BINDER-FREE, THIN-FILM LICOO2 AND ITS ELECTROCHEMICAL RESPONSES IN A PROPYLENE CARBONATE SOLUTION [J].

UCHIDA, I ;

SATO, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (09) :L139-L141

← 1 2 →