Chemistry

Stabilization of gamma sulfur at room temperature to enable the use of carbonate electrolyte in Li-S batteries

R. Pai, A. Singh, et al.

This groundbreaking study by Rahul Pai, Arvinder Singh, Maureen H. Tang, and Vibha Kalra reveals the stabilization of a rare monoclinic γ-sulfur phase within carbon nanofibers, enabling unprecedented performance in Lithium-Sulfur batteries for 4000 cycles, possibly revolutionizing high-energy-density battery technology.

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Abstract

This study demonstrates the stabilization of a rare monoclinic γ-sulfur phase within carbon nanofibers, enabling the successful operation of Lithium-Sulfur (Li-S) batteries in carbonate electrolyte for 4000 cycles. The altered redox mechanism reversibly converts monoclinic sulfur to Li₂S without intermediate polysulfide formation. This is the first report of stable γ-sulfur synthesis and its application in Li-S batteries, potentially revolutionizing high-energy-density battery technology.

Publisher

Communications Chemistry

Published On

Feb 10, 2022

Authors

Rahul Pai, Arvinder Singh, Maureen H. Tang, Vibha Kalra

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