TY  - JOUR
AU  - Chen, Chunguang
AU  - Li, Dongjiang
AU  - Gao, Lu
AU  - Harks, Peter Paul R. M. L.
AU  - Eichel, Rüdiger-A.
AU  - Notten, Peter H. L.
TI  - Carbon-coated core–shell Li 2 S@C nanocomposites as high performance cathode materials for lithium–sulfur batteries
JO  - Journal of materials chemistry / A
VL  - 5
IS  - 4
SN  - 2050-7496
CY  - London [u.a.]
PB  - RSC
M1  - FZJ-2017-01817
SP  - 1428 - 1433
PY  - 2017
AB  - Li2S has made the concept of Li–S batteries much more promising due to the relatively high storage capacity, the possibility of using Li-free anodes and the increase of microstructural stability. However, similar to S, Li2S also suffers from an insulating nature and polysulfide dissolution problem. The results presented here show a facile and cost-effective approach by using a plasma sparking and chemical sulfurization process to synthesize core–shell Li2S@C nanocomposites. The nanocomposites show a significantly reduced particle size and well-developed core–shell architecture, effectively shortening the Li-ion diffusion distance, enhancing the electronic conductivity and suppressing the dissolution losses of polysulfides. As a result, a much improved rate and cycling performance has been achieved. The method presented in this study offers good opportunities for scaling up the production of high performance cathode materials in a simple and low-cost way to be applied in future generation Li–S batteries.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000395072800011
DO  - DOI:10.1039/C6TA09146F
UR  - https://juser.fz-juelich.de/record/827705
ER  -