Diamond-based quantum battery resists self-discharge, unlocking longer energy storage

Researchers have developed a quantum battery design using nitrogen-vacancy centers in diamond to combat self-discharge. This approach leverages diamond defects to suppress energy loss without external control or a quantum charger. The design optimizes the ratio of coherent to total ergotropy, allowing the battery to maintain energy longer and release more useful work. This advancement could bring quantum batteries closer to practical reality, potentially revolutionizing energy storage.