Highly Fluorinated Al-Centered Lithium Salt Boosting the Interfacial Compatibility of Li-Metal Batteries
Source abstract
Abstract
Formulating electrolytes is very powerful in protecting lithium (Li) anode from severe Li dendrites growth and pulverization. Herein, by a simple one-step and one-pot method, we innovatively synthesize a highly fluorinated (8-CF3) aluminum (Al)-centered lithium salt of lithium perfluoropinacolatoaluminate (LiFPA). The as-formulated LiFPA-based electrolytes enable practical Li/LiCoO2 (areal capacity 1.98 mAh cm–2) and Li/LiNi0.6Co0.2Mn0.2O2 (areal capacity 3.5 mAh cm–2) Li metal batteries (LMBs) with good cycling stability. On the one hand, LiFPA salt can reduce electrolyte surface tension, improve electrolyte wettability, and ultimately suppress Li dendrites growth. On the other hand, the LiFPA salt will facilitate the formation of a protective passivating interphase layer on both electrodes. Our work states the importance of synthesizing of lithium salts with good interfacial compatibility for high performance LMBs.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, No. 53 Zhengzhou Road, Qingdao 266042, Shandong, China
Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, Shandong, China
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
School of Chemistry and Chemical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Shandong Province · Taishan Scholars of Shandong Province · the National Natural Science Foundation for Distinguished Young Scholars of China · the Strategic Priority Research Program of Chinese Academy of Sciences
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