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A composite separator consisting of a functional layer of conductive carbon on the cathode-side of a Celgard separator has been investigated to improve the electrochemical performance of lithium sulfur batteries. The cell with functional carbon layer-coated separator can reach a high initial capacity of 1070mAhg−1 at the rate of 0.5C, and maintain a high capacity retention ratio with the capacity...
Titania-selenium (TiO 2 –Se) composite cathode materials were successfully synthesized by a simple melt-diffusion method for lithium–selenium batteries. The composites were characterized and examined by X-ray diffraction, nitrogen adsorption/desorption measurements, scanning electron microscopy and electrochemical methods, such as cyclic voltammetry, electrochemical impedance spectroscopy...
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