科学家用储存太阳能的液体电池“装在太阳里”

Scientists at UC Santa Barbara have created a remarkable new material that works like a “rechargeable solar battery,” storing sunlight inside tiny molecules and releasing it later as heat — even long after the sun goes down. Inspired by reversible changes found in DNA and photochromic sunglasses, the system captures solar energy without relying on bulky batteries or the electrical grid. The molecule can hold energy for years and packs more energy per kilogram than lithium-ion batteries.