Lithium intercalation into titanium dioxide films from a propylene carbonate solution

被引:14
作者
Churikov, AV [1 ]
Zobenkova, VA [1 ]
Pridatko, KI [1 ]
机构
[1] Saratov NG Chernyshevskii State Univ, Saratov 410012, Russia
基金
俄罗斯基础研究基金会;
关键词
intercalation; diffusion coefficients; passivation; film electrodes; impedance method;
D O I
10.1023/B:RUEL.0000012076.90564.91
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Intercalation of lithium from an LiClO4 propylene carbonate solution into thin-film TiO2 (rutile) electrodes produced by thermal oxidation of a titanium substrate are studied using cyclic voltammetry and impedance measurements at 0.01 to 10(5) Hz. An equivalent circuit adequately modeling the impedance spectra of TiO2- and LixTiO2 electrodes throughout the frequency range studied is proposed. The electrochemical characteristics of film electrodes, the reversibility of intercalation-deintercalation process, the effect of surface passivation on the lithium transfer rate, and the dependence of electric, kinetic, and diffusion parameters on the electrode potential (composition) are discussed. The diffusion coefficient of lithium in LixTiO2 is 10(-12) cm(2)/s as estimated by the impedance method.
引用
收藏
页码:63 / 68
页数:6
相关论文
共 33 条
[1]  
AKIMOV AG, 1978, ELEKTROKHIMIYA, V14, P1381
[2]   The study of surface phenomena related to electrochemical lithium intercalation into LixMOy host materials (M = Ni, Mn) [J].
Aurbach, D ;
Gamolsky, K ;
Markovsky, B ;
Salitra, G ;
Gofer, Y ;
Heider, U ;
Oesten, R ;
Schmidt, M .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (04) :1322-1331
[3]  
BAGOTZKY VS, 1995, ELEKTROKHIMIYA, V31, P342
[4]  
Churikov A. V., 2002, ELEKTROKHIMIYA, V38, P120
[5]   Application of pulse methods to the determination of the electrochemical characteristics of lithium intercalates [J].
Churikov, AV ;
Ivanischev, AV .
ELECTROCHIMICA ACTA, 2003, 48 (24) :3677-3691
[6]   On the determination of kinetic characteristics of lithium intercalation into carbon [J].
Churikov, AV ;
Volgin, MA ;
Pridatko, KI .
ELECTROCHIMICA ACTA, 2002, 47 (17) :2857-2865
[7]  
CHURIKOV AV, 2003, ELEKTROKHIMIYA, V39, P591
[8]   Comparative impedance spectroscopy study of rutile and anatase TiO2 film electrodes [J].
Dolata, M ;
Kedzierzawski, P ;
Augustynski, J .
ELECTROCHIMICA ACTA, 1996, 41 (7-8) :1287-1293
[9]  
GUREVICH YY, 1983, FOTOELEKTROKHIMIYA P
[10]   Ionic mobilities in amorphous anodic titania [J].
Habazaki, H ;
Shimizu, K ;
Nagata, S ;
Skeldon, P ;
Thompson, GE ;
Wood, GC .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (03) :B70-B74