How about this?!
High-energy-density batteries are essential to meet the demand for future applications in portable electronics and electrical vehicles. Owing to the theoretical energy density of 2600 Wh/kg, the lithium-sulfur battery is considered one promising candidate for next-generation, high-energy battery solutions. However, shortcomings in fast capacity degradation and low cycling efficiency haven't been solved, which hinders the practical application of lithium sulfur battery system. A researcher at Tsinghua University has proposed a ternary-layered separator system for lithium-sulfur batteries with long lifespan, high coulombic efficiency, and high sulfur utilization.
Here's the rest of the story. user link on phys.org
Oh my. 
