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 vast application prospects in fields such as new energy vehicles and low-altitude economy. Recent advancements by Chinese scientists have significantly upgraded the performance of solid-state batteries, potentially allowing for a range of 1,000 kilometers with a 100-kilogram battery, compared to the previous maximum of 500 kilometers [1][4]. Breakthroughs in Solid-State Battery Technology - The main challenge in solid-state batteries lies in the interface between the solid electrolyte and the lithium metal anode, which affects charging and discharging efficiency. Traditional solid electrolytes, like sulfide, are hard and brittle, while lithium metal is soft, leading to poor contact and inefficiencies [3][5]. - Three key technological breakthroughs have been achieved to address the contact issues between the solid electrolyte and lithium anode, effectively overcoming the range limitations of solid-state batteries [4][5]. Key Technological Innovations - "Special Glue" - Iodine Ions: A collaborative effort by the Chinese Academy of Sciences and various research teams has developed a "special glue" that directs lithium ions to fill gaps at the interface between the electrode and electrolyte, enhancing contact and efficiency [6]. - Flexible Transformation Technique: Researchers have created a flexible framework using polymer materials that allows the electrolyte to withstand significant deformation without damage. This innovation improves the battery's ability to store energy by 86% by incorporating chemical components that enhance lithium ion mobility and retention [7]. - "Fluorine Reinforcement": A team from Tsinghua University has modified the electrolyte with fluorinated polyether materials, providing high voltage resistance and preventing breakdown during high-stress conditions. This technology ensures safety and extends the battery's operational range [9].