A room temperature rechargeable Li-LiNO3 battery with high capacity

• 成果类型: Article
• 署名作者: Hu, Zhengqiang; Zhang, Fengling; Wu, Feng; Li, Li; Chen, Renjie
• 署名单位: Beijing Institute of Technology; Beijing Institute of Technology; Beijing Institute of Technology
• 刊物名称: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• ISSN/ISSBN: 0027-15317
• DOI: 10.1073/pnas.2416817122
• 发表日期: 2025-01-21
• 关键词: electrical energy-storage

摘要

Lithium- ion batteries (LIBs) have become advanced energy storage technologies; however, specific capacity remains limited by the active materials in cathodes. Here, we report Li-LiNO3 batteries (LNBs) where LiNO3 in electrolyte serves as both active materials and ion conductor at room temperature. LNBs operate on a highly reversible redox between NO3 - and NO2-, which results in an impressive areal capacity of 19 mAh cm-2 at a plateau voltage of 1.75 V. Furthermore, the pouch cell exhibits stable cycling at a capacity of 100 mAh. This research underscores the potential of LNBs for high- capacity energy storage.