Spongy solid material made to behave like liquid
US-based scientists have found a method to get a solid material to act like a liquid, without liquefying it. Pressing COF-5, a nano sponge-like non-flammable synthetic material, into nail-sized pellets, they found its internal crystal structure arranged in patterns that allow lithium ions to flow easily, like in a liquid. The find may prove helpful in developing safer non-flammable batteries.