锂碳复合材料研究进展OA北大核心CSTPCD

Lithium metal has a high theoretical specific capacity and a low density. As a cathode mate-rial,the battery will obtain a high energy density and can meet the rapidly developing market de-mand. However,the commercial application of lithium metal is limited by the formation and accumu-lation of inactive lithium,volume expansion,and unstable solid electrolyte membrane of lithium in practical application. The lithium carbon composite prepared by lithium metal and carbon materials can effectively alleviate the above problems. In this paper,the classification,synthesis method and electrochemical properties of lithium carbon composites were introduced,which consists of lithium-graphene composite,lithium-graphite composite,lithium-carbon fiber composite and lithium-carbon nanotube composite et al,and then their advantages and disadvantages were summarized. Finally,the development direction of lithium carbon materials in the future is prospected.