کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5459799 | 1516189 | 2017 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
3D microporous Sn-Sb-Ni alloy impregnated Ni foam as high-performance negative electrode for lithium-ion batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
A novel, “active-active-inactive” type Tin-Antimony-Nickel alloy with dendritic morphology electrodeposited on 3D interconnected microporous Nickel foam (â¼8 μm pore diameter) as a potential high capacity anode for Li-ion batteries is reported. The multiphase composition comprising of SnSb and Ni3Sn4 “reactant” intermetallics dispersed in Sn “matrix”, alleviates the volumetric stress generated during cycling by lithiating at different step potentials (0.84, 0.66, 0.57, 0.42, 0.40, and 0.38-0.25 V vs. Li/Li+). Nickel foam was synthesized by template-free hydrogen bubble-assisted electrodeposition and it successfully acts as a stress buffer preventing delamination. This combination of properties for Tin-Antimony-Nickel anode impregnated into Nickel foam results in 2nd cycle discharge capacity of 845 mAh/g, superior rate capability and stable cycle retention with a capacity loss of 16% in the last 50 cycles at a rate of 430 mA/g (0.5 C), while preserving its structural integrity and micro-architecture in comparison to a Tin-Antimony-Nickel anode deposited on a planar Nickel film as a current collector.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 705, 25 May 2017, Pages 290-300
Journal: Journal of Alloys and Compounds - Volume 705, 25 May 2017, Pages 290-300
نویسندگان
Srijan Sengupta, Arghya Patra, Mainul Akhtar, Karabi Das, Subhasish Basu Majumder, Siddhartha Das,