Journal
NANO ENERGY
Volume 80, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2020.105516
Keywords
Li metal anode; Solid-state electrolyte; Electrolyte design; Dendrites; Additive
Categories
Funding
- National Natural Science Foundation of China [21771018, 21875004]
- Natural Science Foundation of Beijing [2192018, 2192037]
- National Natural Science Foundation of China
- Ministry of Foreign Affairs and International Cooperation, Italy [NSFC-MAECI 51861135202]
- PULEAD Technology Industry Co. Ltd.
- Beijing University of Chemical Technology, BUCT, China [buctrc201901]
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This review focuses on the electrolyte designs for handling Li dendritic growth and improving electrochemical performance of Li metal anode. It outlines the trend of electrolyte designs from traditional composition adjustment of the liquid electrolyte to molecular design of the solid polymer electrolyte. The aim is to provide strategic guidance for the rational design and fabrication of safety electrolytes, and to explore the possibility of these designs in practical application, while critically evaluating the existing challenges and future opportunities in this burgeoning field.
Li metal anode is among the most promising anode materials for next generation of lithium batteries (Li-O-2, Li-S batteries). However, the commercial applications of Li metal batteries have been seriously hindered due to safety and lifetime concerns caused by the formation of Li dendrites. In this review, we focus on the electrolyte designs in handling Li dendritic growth and improving electrochemical performance of Li metal anode, and outline the trend of electrolyte designs from traditional composition adjustment of the liquid electrolyte to molecular design of the solid polymer electrolyte. We aim to provide strategic guidance for the rational design and fabrication of safety electrolytes, and to explore the possibility of these designs in practical application. We critically evaluate the existing challenges and future opportunities associated with this burgeoning field.
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