The Production and characterization of tin (II) oxide composite anode electrodes for lithium ion batteries

Yıl 2017, , 150 - 156, 01.04.2017

Mehmet Oğuz Güler

https://doi.org/10.16984/saufenbilder.296995

Öz

In this study, the core component
of the composite, tin (II) oxide powders synthesized through a facile chemical
reduction methods for Li-ion batteries. As the shell structure, surfaces of the
as-synthesized tin (II) oxide particles were coated with carbon through
microwave assisted carburization process. The surface morphologies and phase
components of the as-synthesized tin (II) oxide/carbon composites were
investigated via scanning electron microscopy and X-ray diffraction methods,
respectively. CR2016 type coin cells were prepared by using tin (II)
oxide/carbon composite powders and electrochemical tests were performed at room
temperature via 8-channel MTI BST8‒MA electrochemical test station between 10
mV and 2.5 V potential range by applying fixed 1 C state of charge conditions.
The results have shown that tin (II) oxide/carbon composite structure have
significantly improved the specific capacities to 396 mAh g-1 after 100 cycles.

Anahtar Kelimeler

Tin (II) oxide, core/shell, chemical reduction, microwave assisted carburization, Li ion battery

Lityum iyon piller için kalay (II) oksit kompozit anot elektrotlarının üretimi ve karakterizasyonu

Öz

 Bu çalışmada
Li-iyon piller için uyumlu çekirdek olarak kalay (II) oksit anotlar kimyasal
indirgeme yöntemi ile sentezlenmiştir. Karbon esaslı kabuk sentezi için
mikrodalga destekli karbürizasyon yöntemi kullanılmış ve SnO tozlarının
yüzeylerinde ince amorf bir karbon tabakası elde edilmiştir. Üretilen kalay
(II) oksit/karbon kompozit elektrotların yüzey morfolojileri Taramalı
Elektron Mikroskobu (SEM) ile analiz edilmiş ve yapıların faz bileşenleri
X-Işınları Difraktometresi (XRD) ile karakterize edilmiştir. Üretilen kalay
(II) oksit/karbon kompozit tozları kullanılarak hazırlanan elektrotlar ile
CR2016 test hücreleri hazırlanmış ve elektrotların elektrokimyasal
performansı MTI BST8‒MA 8 kanallı pil test ünitesinde, oda sıcaklığında 10 mV
ve 2,5 V arasında sabit 1C şarj/deşarj şartlarında akım verilerek test
edilmiştir. Sonuç olarak, kalay (II) oksit/karbon kompozit elektrot
malzemeleri ile 100 çevrim sonrasında 396 mAh g^-1 deşarj
kapasitesi elde edilmiştir.

Anahtar Kelimeler

Kalay (II) oksit, çekirdek/kabuk, kimyasal indirgeme, mikrodalga destekli karbürizasyon, Li iyon pil

Kaynakça

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