LM-XL-18 cold-storage PCM realizes the storage and release of cold through the phase change of the substance. As a phase change materials for cold storage, it has a high energy storage density, suitable specific heat and thermal conductivity, which is safe and reliable. It is not easy to deteriorate or volatile which can be used repeatedly and is efficient and environmentally friendly. It has a wide application prospect in the fields of food freezing transportation, cold storage, refrigerator energy saving, low temperature air conditioning and so on.