LM-XL-2 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 range of application prospects in the fields of medicine, food refrigerated transportation, fruit and vegetable preser-vation, etc.