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 fields such as new energy vehicles and low-altitude economy. 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 with a 100-kilogram battery [1][2]. Group 1: Challenges in Solid-State Batteries - 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 due to poor contact [2][4]. - Traditional sulfide solid electrolytes are hard and brittle, while lithium metal is soft, creating a mismatch that complicates the interface [2]. Group 2: Key Technological Breakthroughs - Three major technological breakthroughs have been achieved to enhance the interface between the solid electrolyte and lithium metal, addressing the contact issues and significantly improving battery range [4]. Group 3: Innovations in Solid-State Battery Technology - The development of a "special glue" using iodine ions allows for the active attraction of lithium ions to fill gaps at the interface, improving contact and performance [5][6]. - A flexible framework created from polymer materials enhances the electrolyte's durability, allowing it to withstand over 20,000 bends without damage, while also increasing lithium ion mobility and storage capacity by 86% [8]. - A fluorinated polymer modification provides high voltage resistance, ensuring safety during high-temperature and puncture tests, thus maintaining both safety and range [10].