High thermal conductivity energy storage material

Which materials have a high thermal conductivity?

Some materials possess high thermal conductivities, but have limited thermal energy storage density, like expanded graphite/PCMs , , , , , , , . Clay/PCMs , , , and BN/PCMs owning a high energy storage density may suffer from slow thermal response.

Is high temperature thermal energy storage a good option?

High temperature thermal energy storage is one promising option with low cost and high scalability, but it is hindered by the inherent complexity of simultaneously satisfying all of the material requirements. Here we design a class of ceramic–carbon composites based on co-optimizing mechanical, electrical, and thermal properties.

What is the thermal conductivity of composites?

The average value except for the phase change process is about 1.16 kJ/ (kg•°C). By combining the specific heat and measured thermal diffusivity of composites, the thermal conductivity of composites is as high as 31.8 W/m-K, which is about 18.7 as high as that of eutectic salts of NaCl/LiNO 3. Fig. 7.

What is the thermal conductivity of a composite skeleton?

Designed composites possess a high thermal conductivity ranging from 31.8 to 52.63 W/m-K benefiting from continuous thermal transport channels of densified AlN skeletons. Meanwhile, the phase change enthalpy reaches 140 to 186 kJ/kg since about up to 92% of pores are filled with PCMs.

Are C-AL and c-Si thermal storage systems suitable for high energy density?

The C-Al and C- (Al,Si) systems may be strong candidates for high energy density, high conductivity thermal storage materials. This paper concerns the synthesis, characterisation and short term performance of these two prospective MGA (Materials for Gas Applications) systems.

Which porous ceramics based PCM has high thermal conductivity and high energy storage density?

Here, we successfully develop novel porous AlN ceramics based PCMs, which possess both high thermal conductivity and high energy storage density. AlN is selected due to its possessing high thermal conductivity up to 374 W/m-K at room temperature and good thermal stability .