期刊
CHEMICAL COMMUNICATIONS
卷 59, 期 85, 页码 12723-12726出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d3cc03967f
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A 5-nm-thick artificial solid electrolyte interface is engineered for the hard carbon anodes of sodium-ion batteries, resulting in improved initial Coulombic efficiency and superior-rate sodium storage.
A 5-nm-thick artificial solid electrolyte interface (SEI) was engineered for the hard carbon anodes of sodium-ion batteries. Benefiting from the artificial SEI, the hard carbon anode shows a significantly improved initial Coulombic efficiency of 94% and superior rate performance with a reversible capacity of 247 mA h g-1 after 800 cycles at 1C, 220 mA h g-1 after 400 cycles at 6C. A 5-nm-thick artificial solid electrolyte interphase is pre-engineered for hard carbon anodes toward ultrahigh-initial Coulombic efficiency and superior-rate sodium storage.
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