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Layered compounds with large interlayer spacing enabling ions intercalation are promising anode materials for sodium-ion and potassium-ion batteries. Herein, we prepared the high-purity layer-structured NbSe2 sheets with compatible interlayer spacing (6.30 Å) via a facile solid-state vacuum sintering. The as-prepared NbSe2 was explored as anode materials for sodium and potassium batteries for the...
In order to overcome the severe capacity decay of LiMn2O4 at high temperature, TiN is used as an active materials additive in this paper. The XRD and XPS test results indicate that the TiN can effectively prevent Mn from dissolving in electrolyte; galvanostatic charge-discharge test shows that LiMn2O4 electrode with TiN exhibits remarkably improved capacity retention at high temperature with capacity...
Li 4 Ti 5 O 12 /Cu 2 O composite was prepared by ball milling Li 4 Ti 5 O 12 and Cu 2 O with further heat treatment. The structure and electrochemical performance of the composite were investigated via X-ray diffraction, scanning electron microscopy, energy-dispersive spectroscopy, cyclic voltammetry,...
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