Scientists tap sulfur's third electron to boost lithium-sulfur battery voltage

Researchers have found a way to engage sulfur's third electron in the cathode of lithium-sulfur batteries, raising voltage and capacity compared with conventional lithium-ion cells. The technology remains at the laboratory testing stage.

• Lithium-sulfur batteries rely on sulfur reactions at the cathode instead of traditional materials
• Engaging sulfur's third electron increases voltage and capacity
• The approach could offer an alternative to widely used lithium-ion batteries