重庆科技大学学报(自然科学版)2025,Vol.27Issue(1):12-17,36,7.DOI:10.19406/j.issn.2097-4531.2025.01.003
NiS-TiO2/CNTs三维载体对多硫化锂催化转化性能的研究
NiS-TiO2/CNTs 3D Matrix for Accelerating Sulfur Redox Kinetics in Li-S Battery
摘要
Abstract
Lithium-sulfur(Li-S)batteries possess the advantages of a high theoretical energy density,abundance of resource and low cost of sulfur,making them promising candidates for next-generation energy storage systems.However,during cycling,Li-S batteries suffer from the"shuttle effect",leading to the loss of active material and rapid capacity decay.To solve this problem,a composite material of NiS-TiO2 nanowires and carbon nanotubes(NiS-TiO2/CNTs)was prepared.With batteries sulfur-loaded,the NiS-TiO2/CNTs/S cathode material delivers a high initial specific capacity of 1 176.0(mA·h)/g at 0.2 C and retains a discharge capacity of 556.4(mA·h)/g after 100 cycles at 0.2 C,demonstrating excellent cycling stability.关键词
二氧化钛/硫化镍/穿梭效应/锂硫电池Key words
titanium dioxide/nickel sulfide/shuttle effect/lithium-sulfur batteries分类
动力与电气工程引用本文复制引用
彭涛,李晓,胡章涛,钱腾蓉,望军,张瀚..NiS-TiO2/CNTs三维载体对多硫化锂催化转化性能的研究[J].重庆科技大学学报(自然科学版),2025,27(1):12-17,36,7.基金项目
国家自然科学基金青年项目"锂硫电池正极载体材料的构筑及其对放电过程的分段控制机制"(52107223) (52107223)
重庆市教委科学技术研究项目"锂硫电池分级结构载体的构筑及其固硫机制研究"(KJQN202401536) (KJQN202401536)
重庆科技大学硕士研究生创新计划项目"单原子分散M-Nx材料可控合成及其在酯类锂硫电池中的作用机制研究"(YKJCX2421616) (YKJCX2421616)