Electronic structure study of Sn-substituted Li2MnO3 cathode material
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Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Li2MnO3, a well known Li-ion battery cathode material, is used against instabilities of other cathode materials despite of its weak performance. To this aim, Sn4+-substitution of Mn could enrich the electronic properties providing during the molecular interactions of valence electrons. Within this work, electronic structure features of Sn-substituted Li2MnO3 material (Li2Mn1-xSnxO3) have been studied by the X-ray absorption fine structure (XAFS) spectroscopy calculations regarding variant x values of 0.00, 0.10, and 0.20. Higher electronegativity of the substituted Sn atom versus the host Mn atom could govern the electronic interactions via the hybridized bonds built between Sn and O atoms. The obtained results indicated that the Sn-substitution could yield better cathode properties for the Li-ion battery devices.
Açıklama
Anahtar Kelimeler
Crystal structure, Electronic structure, Li-ion batteries, Absorption spectroscopy
Kaynak
Materials Today Communications
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
24
