Electrochemical behaviors of SnO and Sn anodes for lithium rechargeable batteries

被引：15

作者：

Kim, Young-Jun ^{[1
]}

Park, Min-Sik ^{[1
]}

Sohn, Hun-Joon ^{[2
]}

Lee, Hyukjae ^{[3
]}

机构：

[1] Korea Elect Technol Inst, Adv Batteries Res Ctr, Songnam 463816, Gyeonggi, South Korea

[2] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151744, South Korea

[3] Andong Natl Univ, Ctr Green Mat Technol, Sch Adv Mat Engn, Andong 760745, Kyungbuk, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 12期

关键词：

Tin oxides; Li rechargeable batteries; X-ray diffraction; X-RAY-DIFFRACTION; TIN OXIDE; COMPOSITES; ELECTRODES; CAPACITY;

D O I：

10.1016/j.jallcom.2011.01.061

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electrochemical behaviors of Sn and SnO anodes are studied. Charging/discharging curves show irreversible capacities at the first cycle in both Sn and SnO electrodes. The irreversible capacity loss in Sn electrode is due to the incomplete Li removal from Sn after the first cycle. Although the largest capacity loss in SnO electrode is a result from the lithia formation during the first discharge, additional capacity loss arises from the residual Li in metallic Sn owing to the aggregation of Sn upon repeated cycling. Contrary to the previous studies, Li22Sn5 phase is not observed in the discharge product in Sn and SnO electrodes. The LiSn alloy electrode shows almost 100% cycling efficiency at the first cycle due to the pre-existing Li. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：4367 / 4371

页数：5

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