LITHIUM METAL-SKELETAL CARBON COMPOSITE MATERIAL WITH HYDROPHOBIC CLADDING LAYER AND PREPARATION METHOD AND USE THEREOF

摘要

Disclosed are a lithium metal-skeletal carbon composite material having a hydrophobic cladding layer, a preparation method therefor, an electrode and an electrochemical energy storage device containing the lithium metal-skeletal carbon composite material, and a method for the protection of a material containing active metal materials sensitive to water and oxygen. The lithium metal-skeletal carbon composite material having a hydrophobic cladding layer comprises: a lithium metal-skeletal carbon composite material comprising a porous carbon material carrier and lithium metal at least distributed in pores of the porous carbon material carrier; and a hydrophobic cladding layer, wherein same at least clads the lithium metal in the lithium metal-skeletal carbon composite material. Since the hydrophobic cladding layer has the function of isolating water and oxygen, the lithium metal-skeletal carbon composite material having a hydrophobic cladding layer can be steadily present in the air, and the use of the lithium metal-skeletal carbon composite material having a hydrophobic cladding layer as a negative electrode of a lithium battery can improve the safety and cycle life of the battery.