摘要
Lithium metal has been widely studied as one of the most promising anode materials for realizing the next-generation high-energy-density rechargeable batteries.However,its practical use in rechargeable batteries has been hindered by hazardous dendrite growth and huge volume variations during Li plating/stripping.Herein,we reported a borondoped three-dimensional(3D)layered MXene(Ti_(3)C_(2)T_(x))as the host of Li metal anode.The material was synthesized via a facile one-pot hydrothermal process.With uniform B-doping,the prepared 3D multilayered MXene sheets provided more sites for nucleation of Li metal,so that the deposited Li metal anode showed favorable cycling stability and a high Coulombic efficiency.With the use of the same host material,a hybrid lithium-metal battery with 3D Li anode coupling with LiFePO4 cathode showed long cycle life and favorable electrochemical stability.This work shed lights on reasonable structural and compositional design of host materials that enables high-performance Li-metal anode toward practical realization of highenergy rechargeable batteries。
出处
《Rare Metals》
SCIE
EI
CAS
CSCD
2022年第7期2217-2222,共6页
稀有金属(英文版)
基金
financially supported by the National Key R&D Program of China (No. 2019YFA0705602)
the National Natural Science Foundation of China (Nos. 21975266 and 22075299)
the Natural Science Foundation of Hebei Province (Nos. B2020205019, B2021205019, B2019205249 and B2021205029)
the School Fund of Hebei Normal University (No. L2017B03)
the Science and Technology Project of State Grid Corporation of China (No. 5400-202099510A-0-0-00)
the Start-up Funds of the CAS and the BMS Senior Fellow of Beijing National Laboratory for Molecular Sciences (No. 2020BMS20032)