Progress with Lithium-sulfur battery technology

Researchers from Hanyang University in Korea and the University of Rome Sapienza (Italy) have developed a lithium-sulfur battery employing a high-performance mesoporous hard carbon spherules-sulfur cathode and a stable, highly conducting electrolyte.
The results, reported in the journal Advanced Functional Materials, demonstrate that the battery cycles with very high capacity—on the order of 750 mAh g⁻¹—with excellent retention during cycling. In addition, by exploiting the high conductivity of the electrolyte, the battery performs very well also at low temperature, i.e., delivering a capacity of 500 mAh g₋₁(S) at 0 °C for more than 170 charge-discharge cycles.
The team suggests that the results may substantially contribute to the progress of the lithium-sulfur battery technology.