固态电池新突破！

Core Viewpoint - Solid-state batteries represent a key technological direction for next-generation lithium batteries, with significant application prospects in electric vehicles and low-altitude economies. Recent advancements by Chinese scientists have led to a breakthrough in all-solid-state lithium batteries, potentially doubling the range from 500 kilometers to over 1000 kilometers for a 100-kilogram battery [1][2]. Technical Challenges and Breakthroughs - The primary 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, such as sulfide, are hard and brittle, while lithium metal is soft, leading to poor contact and inefficiencies [2][3]. - Three key technological breakthroughs have been achieved to address the interface issues, enhancing the performance and range of solid-state batteries [3]. Key Technological Innovations - Special Adhesive - Iodine Ions: Researchers have developed a "special adhesive" that actively attracts lithium ions to fill gaps at the interface between the electrode and electrolyte, improving contact and efficiency [4]. - Flexible Transformation: A flexible framework made from polymer materials has been created to enhance the electrolyte's durability, allowing it to withstand significant deformation without damage. This innovation has increased the battery's energy storage capacity by 86% [5]. - Fluorine Reinforcement: A research team has modified the electrolyte with fluorinated polyether materials, providing high voltage resistance and preventing breakdown under high voltage conditions [6][7]. Safety and Performance - The new technology has demonstrated safety under extreme conditions, such as puncture tests and high-temperature environments, ensuring both safety and extended range capabilities [7].