A room temperature rechargeable Li2O-based lithium-air battery enabled by a solid electrolyte

• 成果类型: Article
• 署名作者: Kondori, Alireza; Esmaeilirad, Mohammadreza; Harzandi, Ahmad Mosen; Amine, Rachid; Saray, Mahmoud Tamadoni; Yu, Lei; Liu, Tongchao; Wen, Jianguo; Shan, Nannan; Wang, Hsien-Hau; Ngo, Anh T.; Redfern, Paul C.; Johnson, Christopher S.; Amine, Khalil; Shahbazian-Yassar, Reza; Curtiss, Larry A.; Asadi, Mohammad
• 署名单位: Illinois Institute of Technology; United States Department of Energy (DOE); Argonne National Laboratory; University of Illinois System; University of Illinois Chicago; University of Illinois Chicago Hospital; United States Department of Energy (DOE); Argonne National Laboratory; United States Department of Energy (DOE); Argonne National Laboratory; University of Illinois System; University of Illinois Chicago; University of Illinois Chicago Hospital; Stanford University; Imam Abdulrahman Bin Faisal University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-9295
• DOI: 10.1126/science.abq1347
• 发表日期: 2023-02-03
• 页码: 499-504
• 关键词: long cycle life; high-energy-density; charge-transport; oxygen battery; polymer electrolytes; ionic-conductivity; state; superoxide; composite; performance

摘要

A lithium-air battery based on lithium oxide (Li2O) formation can theoretically deliver an energy density that is comparable to that of gasoline. Lithium oxide formation involves a four-electron reaction that is more difficult to achieve than the one-and two-electron reaction processes that result in lithium superoxide (LiO2) and lithium peroxide (Li2O2), respectively. By using a composite polymer electrolyte based on Li10GeP2S12 nanoparticles embedded in a modified polyethylene oxide polymer matrix, we found that Li2O is the main product in a room temperature solid-state lithium-air battery. The battery is rechargeable for 1000 cycles with a low polarization gap and can operate at high rates. The four-electron reaction is enabled by a mixed ion-electron-conducting discharge product and its interface with air.