Structural properties and electrochemical performance V-doping Li2Ti3O7 and Li4Ti5O12 anode materials
Küçük Resim Yok
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Li2Ti3-xVxO7 and Li4Ti5-xVxO12 (x=0-0.1) are successfully fabricated using the conventional solid-state reaction technique. The battery performance of the cells showed that the highest capacity of Li2Ti3-xVxO7 was obtained for the sample of x=0.025 which has 153mAh/g and 123mAh/g for 1 and 1000, respectively. In addition to this, the best capacity of the cell of Li4Ti4.5V0.5O12 was found as 202mAh/g for the first cycle and it was decreased to 194mAh/g for 1000 cycles. To understand the capacity fade mechanism, we performed ex situ structural experiments and it is found that the unit cell of the crystalline phase is directly affected to battery performance. We concluded that in this study the V-substituted samples have a potential for next-generation battery fabrication since it may cause the increase of the stability of the cells.
Açıklama
Anahtar Kelimeler
Ion, Composite, Diffusion, Al
Kaynak
Journal of Materials Science-Materials in Electronics
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
30
Sayı
12
