SCHEDULED MAINTENANCE
Core–shell oxygen-deficient Fe2O3 polyhedron serves as an efficient host for sulfur cathode†
Jun
Pu, 
*a
Zhenghua
Wang
a
*a
Zhenghua
Wang
a
Abstract
Herein, an oxygen-defect-rich core–shell Fe2O3−x@C polyhedral sulfur host was prepared, which effectively promoted electrochemical conversion and further inhibited the “shuttle effect” in lithium–sulfur (Li–S) batteries. Fe2O3−x@C@S provided a high initial capacity of 1395 mA h g−1 and a low attenuation of ∼0.067% per cycle.
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