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Chemists decipher reaction process that could improve lithium-sulfur batteries


A combination of battery technology and catalysis opens new avenues for cheap, high-capacity batteries.

“Despite extensive efforts devoted to improving the apparent performance of lithium-sulfur batteries, the fundamental reaction mechanism remains unsettled,” said Duan, corresponding author and UCLA professor of chemistry and biochemistry. Their study also found that the intermediate Li 2 S 6 does not directly participate in the electrochemical process but is present as a major product from side chemical reactions and contributes significantly to the unwanted polysulfide shuttling effect. “The combination of battery technology and catalysis science opens new avenues for fast and high-capacity energy conversion devices,” said Sautet, who is the Levi James Knight, Jr.

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