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Sulfurized polyacrylonitrile (SPAN) as a promising cathode material for lithium sulfur (Li-S) batteries has drawn increasing attention for its improved electrochemical performance in carbonate-based electrolyte.However,the relatively poor electronic and ionic conductivities of SPAN limit its high-rate and lowtemperature performances.In this work,a novel one-dimensional nanofiber SPAN (SFPAN) composite is developed as the cathode material for Li-S batteries.Benefitting from its one-dimensional nanostructure,the SFPAN composite cathode provides fast channels for the migration of ions and electronics,thus effectively improving its electrochemical performance at high rates and low temperature.As a result,the SFPAN maintains a high reversible specific capacity ~ 1200 mAh g-1 after 400 cycles at 0.3 A g-1 and can deliver a high capacity of-850 mAh g-1 even at a high current density of 12.5 A g-1.What is more,the SFPAN can achieve a capacity of ~ 800 mAh g-1 at 0 ℃ and-1550 mAh g-1 at 60 ℃,thus providing a wider temperature range of applications.This work provides new perspectives on the cathode design for high-rate lithium-sulfur batteries.