Comparison of cathode behavior of lithium and sodium batteries and properties related to voltage and density

سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 373

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شناسه ملی سند علمی:

ISPTC21_246

تاریخ نمایه سازی: 30 دی 1397

چکیده مقاله:

Major advances in rechargeable batteries for portable electronics and large-scale gridstorage will depend on the discovery and exploitation of new high performance materials, whichrequires a greater fundamental understanding of their properties on the atomic and nanoscopicscales. This review describes some of the exciting progress being made in this area through useof computer simulation techniques, focusing primarily on positive electrode (cathode) materialsfor lithium-ion batteries, but also including a timely overview of the growing area of newcathode materials for sodiumion batteries. In general, two main types of technique have beenemployed, namely electronic structure methods based on density functional theory, and atomisticpotentialsbased methods.The scope of contemporary work is highlighted by studies of a broad range oftopical materials encompassing layered, spinel and polyanionic framework compounds such as LiCoO,LiMn O, and LiFePO respectively. Fundamental features important to cathode performance are examined,including voltage trends, ion diffusion paths and dimensionalities, intrinsic defect chemistry, and surfaceproperties of nanostructures.

نویسندگان

Iman Rahbar

Kilometere ۳۵ Tabriz / Azarshahr Road Tabriz- Iran, Tabriz