Abstract:A durable Li−Se battery is fabricated by implementing a rational and facile design strategy for the cathode. The cathode consists of a Se/graphitic carbon nitride (g-C 3 N 4 ) composite combined with a solid lithium titanate (Li 4 Ti 5 O 12 , LTO) layer applied as a solid coating over the separator. The solid LTO layer has pores large enough to allow Li + ions to diffuse through to the anode during charging but small enough to effectively block the polyselenides formed during the discharging cycle and confine … Show more
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