A new study shows that batteries with recycled cathodes can be as good as, or even better than, those using new state-of-the-art materials. The recycled material has a more porous microscopic structure, which is better for lithium ions to slip in and out of, resulting in batteries with similar energy density and up to 53% longer cycle life. The recycling process involves shredding batteries, removing non-essential materials, and dissolving the remaining black mass to produce ready-to-use cathode materials. This technology has the potential to minimize the social and environmental impact of mining and reduce waste.