2014
DOI: 10.1039/c4ta04103h
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Li2S encapsulated by nitrogen-doped carbon for lithium sulfur batteries

Abstract: The procedure for the synthesis of Li2S/C composite particles encapsulated by a nitrogen-doped carbon shell, which exhibit the highest initial discharge specific capacity ever reported in the literature.

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Cited by 94 publications
(64 citation statements)
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References 39 publications
(56 reference statements)
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“…[20][21][22][23][24] Furthermore, Li 2 Sh as ah igh meltingp oint of 938 8C, which makes it convenient to take steps to modify the Li 2 Sb yh igh-temperature technology,s uch as chemical vapor deposition (CVD). [30][31][32][33][34] In particular,m any reports have focused on incorporating Li 2 Si nto reduced graphene, owing to its high electrical conductivity and excellent flexibility. [28,29] To date, great efforts have been made to conquer these problems and improve the electrochemical performance of Li 2 Sc athodes.…”
Section: Introductionmentioning
confidence: 99%
“…[20][21][22][23][24] Furthermore, Li 2 Sh as ah igh meltingp oint of 938 8C, which makes it convenient to take steps to modify the Li 2 Sb yh igh-temperature technology,s uch as chemical vapor deposition (CVD). [30][31][32][33][34] In particular,m any reports have focused on incorporating Li 2 Si nto reduced graphene, owing to its high electrical conductivity and excellent flexibility. [28,29] To date, great efforts have been made to conquer these problems and improve the electrochemical performance of Li 2 Sc athodes.…”
Section: Introductionmentioning
confidence: 99%
“…Despite of these merits, the performance of Li 2 S-based cathode significantly lags behind its sulfur counterpart. [ 9,10,30,31 ] A key issue for the Li 2 S material seems to be in its ineffi cient activation and redeposition process. [ 32,33 ] To understand the actual electrochemical activation processes, we fi rst developed in situ scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques to study the cathode material structural changes on delithiation.…”
mentioning
confidence: 99%
“…The particle size of ball-milled Li 2 S is about 400 nm, while nanoLi 2 S@C has a particle size of ~100 nm, as described previously. 30,31,32 The detailed preparation procedures can be found in the (ESI).…”
Section: Effects Of the Volume Expansion And Shrinkage Of LI 2 S Cathmentioning
confidence: 99%