Size effect analysis of thermal conductivity in lithium nanometer film

Lithium is widely used in the pharmaceutical industry, fuel cell, ceramic industry, glass, lubricants, aluminum industry, refrigerant, nuclear industry and photovoltaic industry. The thermal properties of lithium are very important for the design and safe operation. The MEAM potential was applied to calculate thermal conductivity of lithium with emphasis on size effect analysis in the lithium nanometer film using non-equilibrium molecular dynamics simulation method. The results show that the lithium thermal conductivity increases with increasing film thickness. The obvious size effect and anisotropy of thermal conductivity are found in the lithium nanometer film. From the simulation results, the difference of normal and tangential thermal conductivity has been analyzed quantitatively.