东华大学学报(英文版)2025,Vol.42Issue(4):371-379,9.DOI:10.19884/j.1672-5220.202404002
锂离子电池超高容量负极材料C/SnO2@NC@CC的制备
Preparation of Ultra-High Capacity Anode C/SnO2@NC@CC for Lithium-Ion Batteries
摘要
Abstract
SnO2-based anodes for lithium-ion batteries(LIBs)experience volume expansion,leading to rapid capacity decay and low conductivity.To address this problem,a composite consists of C/SnO2 with a core-shell structure and a carbonized nitrogen-doped Co-metal organic framework(Co-MOF)(NC)supported on carbon cloth(CC)was designed and prepared,which was denoted as C/SnO2@NC@CC.C/SnO2@NC@CC could be used directly as a flexible anode for LIBs.The combination of core-shell structure centered on carbon spheres,carbonized nitrogen-doped Co-MOF,and CC not only restricts the volume expansion but also functions as conductive networks to improve the electrical conductivity.C/SnO2@NC@CC exhibits excellent electrochemical performance with charge and discharge specific capacities of 2 066.0 and 2 077.1 mAh/g,respectively,after 120 cycles at a current density of 0.5 A/g.关键词
锂离子电池/SnO2负极/核壳结构/电极动力学Key words
lithium-ion battery(LIB)/SnO2 anode/core-shell structure/electrode kinetics分类
信息技术与安全科学引用本文复制引用
牟希娜,周鑫,ASAD Khaleeq,王春瑞..锂离子电池超高容量负极材料C/SnO2@NC@CC的制备[J].东华大学学报(英文版),2025,42(4):371-379,9.基金项目
National Natural Science Foundation of China(No.61376017) (No.61376017)