固态电池新突破：新能源车续航有望翻倍

Core Viewpoint - Solid-state batteries represent a core technological direction for next-generation lithium batteries, with significant application prospects in sectors like new energy vehicles and low-altitude economy. Recent advancements by Chinese scientists have led to breakthroughs in all-solid-state lithium batteries, potentially doubling the range from 500 kilometers to over 1000 kilometers with a 100-kilogram battery [1]. Group 1: Challenges in Solid-State Battery Development - The primary challenge in solid-state batteries lies in the efficient movement of lithium ions between the anode and cathode, akin to delivery personnel navigating a road. The commonly used sulfide solid electrolyte is hard and brittle, while the lithium metal anode is soft, leading to poor interface contact that affects charging efficiency [2]. Group 2: Key Technological Breakthroughs - Three critical technological breakthroughs have been achieved, allowing for better integration of the solid electrolyte and lithium anode, thus addressing the interface contact issue and enhancing battery range [4]. Group 3: Innovations in Solid-State Battery Components - A "special glue" developed by the Chinese Academy of Sciences helps lithium ions move to the interface between the electrode and electrolyte, filling gaps and improving contact [5]. - A flexible framework made from polymer materials enhances the electrolyte's durability, allowing it to withstand significant deformation while increasing lithium ion mobility and storage capacity by 86% [8]. - A fluorinated polymer material has been used to modify the electrolyte, providing high voltage resistance and ensuring safety during operation, even under extreme conditions [10][11].