Protective layer for stable lithium-metal anodes at 60 mA·h/cm^(2) and 60 mA/cm^(2) with ion channel and inductive effect  

作　　者：Xiao Zhang Zhiwei Chen Jiaojiao Han Qiang Wang Jinshan Wang Juhua Luo Jianguang Xu Chi Chen Wei Yao 

机构地区：[1]School of Materials Science and Engineering,Jiangsu Provincial Key Laboratory of Eco-Environmental Materials,Yancheng Institute of Technology,Yancheng 224051,China [2]School of Materials and Energy,Shanghai Key Laboratory of Engineering Materials Application and Evaluation,Shanghai Polytechnic University,Shanghai 201209,China [3]CAS Key Laboratory of Design and Assembly of Functional Nanostructures,and Fujian Provincial Key Laboratory of Nanomaterials,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China [4]Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials,and Xiamen Institute of Rare Earth Materials,Haixi Institute,Chinese Academy of Sciences,Xiamen 361021,China

出　　处：《Journal of Materiomics》2024年第6期1252-1260,共9页无机材料学学报（英文）

基　　金：This work was supported by the National Natural Science Foundation of China(51602277 and 21671167);Open Project of Jiangsu Provincial Key Laboratory of Eco-Environmental Materials,Shanghai Local Capacity Building Program(23010500700);Project of Shanghai Municipal Science and Technology Commission(22DZ2291100);the Open Project Program(PEBM202106)of Key Laboratory for Photonic and Electric Bandgap Materials,Ministry of Education.

摘　　要：Contradiction between ultrafast nucleation and deposition rates of lithium(Li)crystals at high rate and heterogeneity of Li^(+)flux resulting from concentration polarization has compromised the performance of Li metal anodes especially at high areal capacity and current density.Here,multifunctional protective layer consisting of MoO_(3) nanobelt films(MoO_(3)-NF)is introduced on the surface of Li by a simple rolling method.The strong binding energy between Li and MoO_(3) guides the homogeneous nucleation and deposition of Li,while the nanobelt networks provide effective ion channels for uniform distribution of the Li+flux.Because of the novel multifunctional protective layer,the MoO_(3)-NF@Li anodes demonstrate a remarkable stability for 800 h with ultralow overpotential of 159 mV at extreme harsh conditions of 60 mA·h/cm^(2) and 60 mA/cm^(2).MoO_(3)-NF@Li||LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2) full-cells can run 100 cycles with a superior capacity retention of 84.2%under practical test conditions,demonstrating great potential for high output and energy-density metal batteries.

关 键 词：Multifunctional protective layer Ion channel Inductive effect High areal capacity Li metal anodes 

分 类 号：TM912[电气工程—电力电子与电力传动]