La3Ni2Sn7 ternary intermetallic phase for lithium insertion and deinsertion

被引：12

作者：

Matsuno, S

Kohno, T

Takami, N

Kawashima, F

Sawab, T

机构：

[1] Toshiba Co Ltd, Ctr Corp Res & Dev, Saiwai Ku, Kanagawa 2128582, Japan

[2] Toshiba Mat Co Ltd, Isogo Ku, Yokohama, Kanagawa 2358522, Japan

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2005年 / 8卷 / 04期

关键词：

D O I：

10.1149/1.1870692

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This paper presents a study on electrochemical performance and crystal structure of La3Ni2Sn7, a new anode material for rechargeable lithium ion battery. This compound showed a larger reversible capacity of 1000 mAh/cm(3) than that of graphite anodes. Good cycle performance was observed during electrochemical charge-discharge reaction. X-ray diffraction revealed that lithium ion inserted into host La3Ni2Sn7 without significant host-structural change and with small volumetric expansion of 0.4%. Accordingly, the good cycle performance is ascribable to the small volumetric change of the crystal lattice. (C) 2005 The Electrochemical Society.

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收藏

页码：A234 / A236

页数：3

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