Nanosecond Pulsed Laser-Assisted Deposition to Construct a 3D Quasi-Gradient Lithiophilic Skeleton for Stable Lithium Metal Anodes

Yu Hui; Yingbin Wu; Wenping SunXudong SunGang HuangZhaolin Na

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Nanosecond Pulsed Laser-Assisted Deposition to Construct a 3D Quasi-Gradient Lithiophilic Skeleton for Stable Lithium Metal Anodes

机译：Nanosecond Pulsed Laser-Assisted Deposition to Construct a 3D Quasi-Gradient Lithiophilic Skeleton for Stable Lithium Metal Anodes

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The continuous growth of Li dendrites and volumetric deformation of Liseverely impede the commercial application of Li metal anodes. To regulateLi stripping/plating, electrodeposition or magnetron sputtering isextensively utilized to fabricate lithiophilic-metal deposited 3D Li hosts.However, the binding force between lithiophilic-metal and host is weak,inevitably leading to numerous cracks/defects of lithiophilic-surface-layerduring Li plating/stripping. Herein, a quasi-gradient (Cu-Cu_3Sn-Sn-SnO_2)3D skeleton consisting of hierarchical Sn/SnO_2 composite metallurgicallybonded to copper foam through Cu_3Sn alloy (LAD-SSC@CF) is designed,and prepared in one-step by a nanosecond-pulsed-laser-assisted depositionstrategy. The homogeneous Li nucleation sites provided by Li_(22)Sn_5formed by the reaction of Sn/SnO_2 with Li can inhibit Li dendrites growth.Meanwhile, the porous space and strong bonding of Cu_3Sn layer avoidstructural deterioration of anodes. Consequently, a symmetric cell basedon LAD-SSC@CF@Li exhibits an outstanding cycling stability of 1500 hat 1 mA cm~(?2). In particular, a full cell with LiFePO_4 cathode providesgood capacity retention of 81.3% at 5 C after 600 cycles. Moreover, thesuccessful preparation of other composite materials (In, Zn, Sn-Bi, etc.)loading on various substrates (Kapton film, ceramic, copper foil, etc.)demonstrates the versatility of pulsed-laser-assisted deposition strategy forpreparing battery materials.

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来源
《Advanced functional materials》 |2023年第34期|2303319.1-2303319.9|共9页
作者
Yu Hui; Yingbin Wu; Wenping SunXudong SunGang HuangZhaolin Na;
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作者单位

Liaoning Engineering Laboratory of SpecialOptical Functional CrystalsCollege of Environmental and Chemical EngineeringDalian UniversityDalian 116622, P. R. China;

Liaoning Engineering Laboratory of SpecialOptical Functional CrystalsCollege of Environmental and Chemical EngineeringDalian UniversityDalian 116622, P. R. China, Foshan Graduate SchoolNortheastern UniversityFoshan 528311, P. R. China;

State Key Laboratory of Rare Earth Resource UtilizationChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022, P. R. China;

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正文语种英语
中图分类无线电电子学、电信技术;工程材料学;
关键词
3D Li hosts; laser-assisted deposition; Li dendrites; metallurgically bonded; Quasi-gradient 3D skeleton;

Nanosecond Pulsed Laser-Assisted Deposition to Construct a 3D Quasi-Gradient Lithiophilic Skeleton for Stable Lithium Metal Anodes

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