A highly-porous graphene aerogel sponge could help usher in a new generation of lithium-sulfur batteries.
The prototype design from Chalmers University was created to work with a catholyte solution—a sulfur-rich combination that functions as both the cathode and the electrode in the battery. This concept helps reduce the battery’s weight while offering a faster charging and better power output. To properly take advantage of the catholyte solution, the team placed slices of the porous graphene oxide aerogel within a standard coin cell battery case. Once in place, the aerogel soaked up the catholyte solution, resulting in a high enough sulfur content to make the catholyte concept feasible.
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