High-performing Sn-Co nanowire electrodes as anodes for lithium-ion batteries

被引：45

作者：

Ferrara, Germano ^{[2
]}

Arbizzani, Catia ^{[1
]}

Damen, Libero ^{[1
]}

Guidotti, Martina ^{[1
]}

Lazzari, Mariachiara ^{[1
]}

Vergottini, Francesco Gioacchino ^{[3
]}

Inguanta, Rosalinda ^{[3
]}

Piazza, Salvatore ^{[3
]}

Sunseri, Carmelo ^{[3
]}

Mastragostino, Marina ^{[1
]}

机构：

[1] Univ Bologna, Dipartimento Sci Met Elettrochim & Tecn Chim, I-40127 Bologna, Italy

[2] CR Mobil Solut Syst Srl, I-90139 Palermo, Italy

[3] Univ Palermo, Dipartimento Ingn Chim, I-90128 Palermo, Italy

来源：

JOURNAL OF POWER SOURCES | 2012年 / 211卷

关键词：

Tin; Tin-cobalt alloy; Nanowire; Anode; Vinylene carbonate additive; Li-ion batteries; ELECTROCHEMICAL PERFORMANCE; NEGATIVE ELECTRODE;

D O I：

10.1016/j.jpowsour.2012.03.066

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：

The preparation of Sn2Co3 nanowire arrays (NWs) electrogrown inside the channels of polycarbonate membranes and their characterization as anodes for Li-ion batteries both in half-cell vs. Li and in battery configuration are reported. The Sn2Co3 NW electrodes tested by deep galvanostatic charge/discharge cycles in ethylene carbonate-dimethylcarbonate (1:1) - LiPF6 1 M displayed 80% capacity retention after 200 cycles at C/2 and 30 degrees C, and a high charge and discharge rate capability at C-rate from C/3 (0.33 A/g) to 10C (10 A/g) at 30 degrees and 10 degrees C. Electrodes with the highest alloy loading delivered up to 0.6 mAh cm(-2) at C/2. The performance of these electrodes in battery configuration with LiFePO4 as cathode is also reported, as well as the effect of the vinylene carbonate additive on the charge/discharge coulombic efficiency of the Sn2Co3 NWs. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：103 / 107

页数：5

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