新型炭材料（中英文）2023，Vol.38Issue(4)：765-775,11.DOI:10.1016/S1872-5805(23)60739-5
高亲锂性的Ti3C2Tx-MXene锚定在柔性炭泡沫骨架上用于无枝晶锂金属负极
Highly lithiophilic Ti3C2Tx-Mxene anchored on a flexible carbon foam scaffold as the basis for a dendrite-free lithium metal anode
摘要
Abstract
We report the fabrication of a lithiophilic Ti3C2TxMXene-modified carbon foam(Ti3C2Tx-MX@CF)for the produc-tion of highly-stable LMBs that regulates Li nucleation behavior and reduces the volume change of a lithium metal anode(LMA).The 3D CF skeleton with a high specific surface area not only reduces the local current density to avoiding concentrated polarization,but also provides enough space to absorb the volume expansion during cycling.The excellent lithiophilicity of Ti3C2Tx-MX pro-duced by its abundant functional groups reduces the Li nucleation overpotential,guides uniform Li deposition without the formation of Li dendrites,and maintains a stable SEI on the anode surface.Consequently,a Li infiltrated Ti3C2Tx-MX@CF symmetrical cell has an excellent cycling stability for more than 2 400 h with a low overpotential of 9 mV at a current density of 4 mA cm-2 and has a ca-pacity of 1 mA h cm-2.Furthermore,a Li-Ti3C2Tx-MX@CF||NCM111 full cell has a capacity of 129.6 mA h g-1 even after 330 cycles at 1 C,demonstrating the advantage of this method in constructing stable LMAs.关键词
MXene/三维结构/枝晶抑制/锂金属负极Key words
MXene/Three-dimensional structure/Dendrite suppression/Li metal anode分类
化学化工引用本文复制引用
陶芳宇,谢丹,刁婉月,刘畅,孙海珠,李文亮,张景萍,吴兴隆..高亲锂性的Ti3C2Tx-MXene锚定在柔性炭泡沫骨架上用于无枝晶锂金属负极[J].新型炭材料（中英文）,2023,38(4):765-775,11.基金项目
This work was supported by the financial sup-port from the Natural Science Foundation of Jilin Province(20220508141RC),the 111 Project(B13013),the National Natural Science Foundation of China(21873018),the Education Department of Jilin Province(JJKH20221154KJ),Jilin Provincial Re-search Center of Advanced Energy Materials(North-east Normal University).吉林省自然科学基金(No.20220508141RC) （20220508141RC）
111 项目(B13013) （B13013）
国家自然科学基金(21873018) （21873018）
吉林省教育厅(JJKH20221154KJ) （JJKH20221154KJ）
吉林省先进能源材料研究中心(东北师范大学). （东北师范大学）
