重庆科技大学学报（自然科学版）2025，Vol.27Issue(5)：1-8,8.DOI:10.19406/j.issn.2097-4531.2025.05.001
三嗪基COF复合石墨烯构筑无枝晶锂金属电池
Triazine-Based COF Composite Graphene to Construct Dendrite-Free Lithium Metal Batteries
摘要
Abstract
Graphene,known for its exceptional electrical conductivity and abundant surface functional groups,re-presents a cutting-edge material that addresses critical challenges in lithium metal batteries.However,two-dimen-sional graphene is hindered by drawbacks such as van der Waals stacking and excessively dense local functional groups,which significantly limit its lithium-ion storage capacity.To tackle this issue,we developed a hierarchical electrode material(COF@G)by integrating functionally tunable covalent organic framework(COF)materials with three-dimensional graphene(G).The nitrogen-rich COF facilitates uniform lithium-ion deposition and mitigates dendrite growth,while the highly conductive G,characterized by its unique lithium-storage structure,enhances lithium-ion storage capacity.When 10％COF was in-situ polymerized onto the G surface,the resulting half-cell ex-hibited stable cycling performance for over 1 200 hours at a current density of 1.0 mA/cm2.Furthermore,the full cell paired with LiFePO4 maintained a high capacity after 600 cycles at a discharge rate of 1.0 C.关键词
锂金属电池/三维宿主/无枝晶/固体电解质界面相/界面反应Key words
lithium metal battery/three-dimensional host/dendrite-free/solid-electrolyte interphase/interface re-action引用本文复制引用
王发萍,黄玉玲,岳利国,林果,汪滔,张邦文..三嗪基COF复合石墨烯构筑无枝晶锂金属电池[J].重庆科技大学学报（自然科学版）,2025,27(5):1-8,8.基金项目
国家自然科学基金项目"片状铝粉/树脂高介电薄膜的界面调控及介电增强机理"(51164026),"各项异性纳米铁/硅橡胶复合材料的微结构控制及其敏感特性"(50704021) （51164026）
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）
