成功开发！我国科学家在这一领域取得重要突破

Core Insights - Tsinghua University’s research team led by Professor Zhang Qiang has made significant advancements in polymer electrolytes for lithium batteries, providing new ideas and technical support for the development of practical high-safety, high-energy-density solid-state lithium batteries [1][3] Group 1: Challenges in Solid-State Batteries - Solid-state batteries currently face two main challenges: poor interfacial contact due to rigid contact between solid materials and the difficulty of electrolytes to coexist with high-voltage cathodes and highly reducing anodes in extreme chemical environments [3] Group 2: Innovative Solutions - The research team proposed a new strategy called "anionic solvent structure design," successfully developing a novel fluorinated polyether electrolyte that enhances physical contact and ionic conductivity at the solid-state interface, significantly improving high-voltage performance and interfacial stability of lithium batteries [3] Group 3: Performance Metrics - A polymer soft-pack full battery constructed with the new electrolyte achieved an energy density of 604 Wh/kg under 1 MPa external pressure, surpassing current commercial batteries [3] - The battery also passed safety tests, including puncture and exposure to a 120°C heat chamber for 6 hours, without any incidents of combustion or explosion, demonstrating excellent safety performance [3] Group 4: Future Implications - The research findings are expected to provide important technical references for the development of mature solid-state battery products in the future [3]