成功开发！我国科学家在这一领域取得重要突破

Core Viewpoint - Chinese scientists have made significant progress in the field of solid-state battery polymer electrolytes, providing new ideas and technical support for the development of practical high-safety, high-energy-density solid-state lithium batteries [1][2]. Group 1: Research Progress - A team led by Professor Zhang Qiang from Tsinghua University has developed a new strategy called "rich anion solvation structure" to address two major challenges in solid-state batteries: poor interfacial contact due to rigid solid-solid materials and the difficulty of electrolytes to coexist in extreme chemical environments under wide voltage windows [2]. - The team successfully created a new type of fluorinated polyether electrolyte using thermally initiated in-situ polymerization technology, which significantly enhances the physical contact and ionic conductivity at the solid-state interface, improving the high-voltage performance and interfacial stability of lithium batteries [2]. Group 2: Performance and Safety - The polymer battery assembled with this electrolyte demonstrated a series of excellent electrochemical properties, achieving an energy density of 604 Wh/kg under 1 MPa external pressure, which far exceeds current commercial batteries [2]. - The battery successfully passed safety tests, including needle penetration and exposure to a 120°C heat box for 6 hours without any combustion or explosion, showcasing its superior safety performance [2].