Highly soluble organic nitrate additives for practical lithium metal batteries
Zhe Wang,
Li‐Peng Hou,
Zheng Li,
Jia‐Lin Liang,
Ming‐Yue Zhou,
Chen‐Zi Zhao,
Xiaoyuan Zeng,
Bo‐Quan Li,
Aibing Chen,
Xue‐Qiang Zhang,
Peng Dong,
Yingjie Zhang,
Jia‐Qi Huang,
Qiang Zhang
Affiliations
Zhe Wang
Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing PR China
Li‐Peng Hou
Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering Tsinghua University Beijing PR China
Zheng Li
Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering Tsinghua University Beijing PR China
Jia‐Lin Liang
Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing PR China
Ming‐Yue Zhou
Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering Tsinghua University Beijing PR China
Chen‐Zi Zhao
Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering Tsinghua University Beijing PR China
Xiaoyuan Zeng
National and Local Joint Engineering Laboratory for Lithium‐Ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming PR China
Bo‐Quan Li
Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing PR China
Aibing Chen
College of Chemical and Pharmaceutical Engineering Hebei University of Science and Technology Shijiazhuang PR China
Xue‐Qiang Zhang
Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing PR China
Peng Dong
National and Local Joint Engineering Laboratory for Lithium‐Ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming PR China
Yingjie Zhang
National and Local Joint Engineering Laboratory for Lithium‐Ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming PR China
Jia‐Qi Huang
Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing PR China
Qiang Zhang
Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering Tsinghua University Beijing PR China
Abstract The stability of lithium metal anodes essentially dictates the lifespan of high‐energy‐density lithium metal batteries. Lithium nitrate (LiNO3) is widely recognized as an effective additive to stabilize lithium metal anodes by forming LiNxOy‐containing solid electrolyte interphase (SEI). However, its poor solubility in electrolytes, especially ester electrolytes, hinders its applications in lithium metal batteries. Herein, an organic nitrate, isosorbide nitrate (ISDN), is proposed to replace LiNO3. ISDN has a high solubility of 3.3 M in ester electrolytes due to the introduction of organic segments in the molecule. The decomposition of ISDN generates LiNxOy‐rich SEI, enabling uniform lithium deposition. The lifespan of lithium metal batteries with ISDN significantly increases from 80 to 155 cycles under demanding conditions. Furthermore, a lithium metal pouch cell of 439 Wh kg−1 delivers 50 cycles. This work opens a new avenue to develop additives by molecular modifications for practical lithium metal batteries.
