Microstructure and electrochemical properties of the HT-LiCoO2/La2/3-xLi3xTiO3 solid electrolyte interfaces

被引：11

作者：

Kishida, Kyosuke ^{[1
]}

Wada, Naoyuki ^{[1
]}

Yamaguchi, Yuji ^{[1
]}

Inui, Haruyuki ^{[1
]}

Demura, Masahiko ^{[2
]}

Iriyama, Yasutoshi ^{[3
]}

Ogumi, Zempachi ^{[4
]}

机构：

[1] Kyoto Univ, Dept Mat Sci & Engn, Sakyo Ku, Kyoto 6068501, Japan

[2] Natl Inst Mat Sci, Fuel Cell Mat Ctr, Tsukuba, Ibaraki 3050047, Japan

[3] Shizuoka Univ, Dept Mat Sci & Chem Engn, Joho Ku, Hamamatsu, Shizuoka 4328561, Japan

[4] Kyoto Univ, Dept Energy & Hydrocarbon Chem, Nishikyo Ku, Kyoto 6158510, Japan

来源：

JOURNAL OF MATERIALS RESEARCH | 2010年 / 25卷 / 08期

关键词：

LITHIUM; BATTERY;

D O I：

10.1557/JMR.2010.0203

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Three different types of HT-LiCoO2/lithium lanthanum titanate (LLT) assemblies were produced by depositing an HT-LiCoO2 cathode on polycrystalline LLT with various surface finishes, to investigate the effects of the HT-LiCoO2/LLT interface structure on the electrochemical properties of the assemblies. An amorphous layer is confirmed to he introduced by Ar ion irradiation to crystalline LLT. The HT-LiCoO2/LLT assembly composed of the ion-irradiated LLT exhibits good cycle stability and relatively low apparent interface resistivity. These results indicate that the introduction of an amorphous LLT layer by surface modification of crystalline LLT is very effective in improving the structural stability and lithium-ion conductivity of the interface between HT-LiCoO2 and crystalline LLT.

引用

页码：1583 / 1587

页数：5

共 9 条

[1] Fast Li-circle plus conducting ceramic electrolytes [J].

Adachi, GY ;

Imanaka, N ;

Aono, H .

ADVANCED MATERIALS, 1996, 8 (02) :127-+

[2] All oxide solid-state lithium-ion cells [J].

Brousse, T ;

Fragnaud, P ;

Marchand, R ;

Schleich, DM ;

Bohnke, O ;

West, K .

JOURNAL OF POWER SOURCES, 1997, 68 (02) :412-415

[3]

Goto K, 2009, MATER RES SOC SYMP P, V1126, P125

[4] Microstructure of the LiCoO2 (cathode)/La2/3-xLi3xTiO3 (electrolyte) interface and its influences on the electrochemical properties [J].

Kishida, K. ;

Wada, N. ;

Adachi, H. ;

Tanaka, K. ;

Inui, H. ;

Yada, C. ;

Irlyama, Y. ;

OgUini, Z. .

ACTA MATERIALIA, 2007, 55 (14) :4713-4722

[5] New, highly ion-conductive crystals precipitated from Li2S-P2S5 glasses [J].

Mizuno, F ;

Hayashi, A ;

Tadanaga, K ;

Tatsumisago, M .

ADVANCED MATERIALS, 2005, 17 (07) :918-+

[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] Fabrication of all solid-state rechargeable lithium battery and its electrochemical properties [J].

Rho, Young Ho ;

Kanamura, Kiyoshi .

JOURNAL OF POWER SOURCES, 2006, 158 (02) :1436-1441

[8] Review of crystalline lithium-ion conductors suitable for high temperature battery applications [J].

Robertson, AD ;

West, AR ;

Ritchie, AG .

SOLID STATE IONICS, 1997, 104 (1-2) :1-11

[9] Lithium lanthanum titanates: A review [J].

Stramare, S ;

Thangadurai, V ;

Weppner, W .

CHEMISTRY OF MATERIALS, 2003, 15 (21) :3974-3990

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