A COF-Graphene Hybrid Opens New Horizons for Lithium-Sulfur Batteries

New graphene layer helps lithium-sulfur batteries last 1,000 cycles

Researchers have developed a molecularly engineered interlayer that tackles one of the biggest barriers to commercial lithium-sulfur batteries, allowing the cells to retain capacity over 1,000 charge-discharge cycles while delivering high energy density. The team, led by researchers at Tohoku University and collaborating institutions, created a covalent organic framework (COF)-graphene interface that prevents the movement of lithium polysulfides…

A COF-graphene hybrid opens new horizons for lithium-sulfur batteries

Lithium-sulfur (Li-S) batteries combine the abundance and affordability of sulfur with an energy storage capability far beyond that of current lithium-ion technologies. Practical deployment, however, has been slowed by a ...