我国科研团队研制出可快充“热池”

Core Insights - A new mechanism called "slip-enhanced contact melting" has been proposed by a research team from Zhejiang University, aiming to improve the performance of phase change thermal storage systems by optimizing the internal wall of thermal pools with a "fully solid composite surface" [1][2] - The research addresses the long-standing conflict between high energy storage capacity and rapid heat charging/discharging rates in phase change thermal pools, which utilize materials like paraffin and hydrated salts that have high latent heat storage but poor thermal conductivity [1] Group 1 - The new approach involves treating the internal walls of thermal pools to create a super-smooth surface, allowing solid phase change materials to remain in close contact with the heat source, thus maintaining high heat transfer rates throughout the process [1] - The core innovation is the "fully solid composite surface," which consists of a thin film capable of pulse heating and a "liquid-like coating" that acts as a slip interface, enhancing the efficiency of heat transfer [2] - This technology enables a dual advantage of achieving both fast charging and high storage capacity, effectively resolving the previous limitations faced by phase change thermal storage systems [2]