Journal
FRONTIERS IN CHEMISTRY
Volume 6, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fchem.2018.00517
Keywords
CuO@Cu; submicron wire sponge; current collector; lithium anode; dendrite-free
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Funding
- National Key R&D Program of China [2018YFB0104204]
- National Natural Science Foundation of China [51804259, 51402236, 51674202]
- Fundamental Research Funds for the Central Universities [3102018jgc004]
- Key R&D Program of Shaanxi [2017ZDCXL-GY-08-03]
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Lithium (Li) metal, with ultra-high theoretical capacity and low electrochemical potential, is the ultimate anode for next-generation Li metal batteries. However, the undesirable Li dendrite growth usually results in severe safety hazards and low Coulombic efficiency. In this work, we design a three-dimensional CuO@Cu submicron wire sponge current collector with high mechanical strength SEI layer dominated by Li2O during electrochemical reaction process. The 3D CuO@Cu current collector realizes an enhanced CE of above 91% for an ultrahigh current of 10 mA cm(-2) after 100 cycles, and yields decent cycle stability at 5 C for the full cell. The exceptional performances of CuO@Cu submicron wire sponge current collector hold promise for further development of the next-generation metal-based batteries.
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