UC Santa Barbara Creates 1.6 MJ/kg Liquid Sun Battery, Boiling Water With Stored Solar Heat
Updated
Updated · ScienceDaily · May 19
UC Santa Barbara Creates 1.6 MJ/kg Liquid Sun Battery, Boiling Water With Stored Solar Heat
5 articles · Updated · ScienceDaily · May 19
UC Santa Barbara scientists reported a liquid molecular storage system that captures sunlight in chemical bonds and later releases enough heat to boil water under ambient conditions.
The Science study says the pyrimidone-based material stores more than 1.6 megajoules per kilogram—above roughly 0.9 MJ/kg for lithium-ion batteries—and can retain that energy for years before activation.
The molecule shifts into a strained high-energy form after absorbing light, then snaps back when triggered by heat or a catalyst, making the system reusable and recyclable rather than grid-dependent.
Researchers say the water-soluble material could eventually circulate through rooftop solar collectors and stored tanks, offering off-grid heating for homes, camping and hot-water use after sunset.
This molecule turns sunlight into instant heat, but can it compete with simple, cheap tech like a hot water tank?
It stores more energy than top batteries, so why is this solar fuel still a distant dream for heating homes?
Liquid Solar Battery Breakthrough: Compact Pyrimidone Molecule Enables Long-Duration, Grid-Free Thermal Energy Storage
Overview
U.S. scientists have introduced a groundbreaking 'liquid solar battery' that marks a major step forward in renewable energy storage. Published in the journal Science, this innovation uses a specially designed, lightweight molecule to store solar energy efficiently without relying on traditional electrical grids or bulky lithium-ion batteries. By systematically removing unnecessary parts, the research team created a compact and optimized molecular structure, making the technology both efficient and practical. This new approach promises to revolutionize how solar power is captured and used, offering a sustainable and flexible solution for long-duration energy storage.