Surface reconstruction on Ni2P@CC to form an ultrathin layer of Ni(OH)2for enhancing the capture and catalytic conversion of polysulfides in lithium–sulfur batteries

An ultrathin layer of Ni(OH) 2 is in situ introduced to the Ni 2 P surface by an electrochemical method to realize the regulation of surface properties of Ni 2 P. The S/Ni(OH) 2 –Ni 2 P@CC based cell exhibits superior cycle stability and high areal capacity.