Compost Power? Your Old Coffee Grounds Could Soon Be Used in Next-Gen BatteriesScientists have discovered a way to use spent coffee grounds as electrodes in lithium-sulfur batteries, which have 10 times the lifespan of lithium-ion batteries.2024.05.29 Scientists have discovered a way to use spent coffee grounds as electrodes in lithium-sulfur batteries, which have 10 times the lifespan of lithium-ion batteries.