锂电池续航与安全不可兼得难题被破解

Group 1 - The CINE2025 Solid-State Battery Exhibition and Industry Annual Conference will be held from November 6-8, 2025, at the Guangzhou Nansha International Convention Center, featuring over 200 exhibitors and 20,000 professional attendees [2][9] - The event will include the 2025 Qidian Solid-State Battery Golden Ding Award Ceremony and the SSBA Solid-State Battery Industry Alliance Council [2] - The first batch of exhibitors and sponsors includes companies such as Jin Na Technology, Ru Tian Technology, and Rongjie Energy, among others [2] Group 2 - A research team from Tsinghua University has developed a new fluorinated polyether electrolyte that achieves an energy density of 604 Wh kg-1 for high-safety polymer batteries, addressing the challenge of balancing battery range and safety [3][4] - Solid-state batteries are seen as a significant development direction for lithium batteries, particularly those using lithium-rich manganese-based layered oxides, which show potential for energy density breakthroughs [3][4] - The research team proposed a new design strategy called "rich anion solvation structure," which enhances the physical contact and ionic conductivity at the solid-solid interface, significantly improving interface stability [4] Group 3 - The polymer battery constructed with the new electrolyte demonstrated excellent electrochemical performance, achieving an energy density of 604 Wh kg-1 under 1 MPa external pressure, surpassing current commercial lithium iron phosphate and nickel-cobalt-manganese batteries [4] - The battery passed safety tests, including puncture and thermal stability tests at 120°C, without any combustion or explosion, showcasing its superior safety performance [5]