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Highly stable lithium plating by a multifunctional electrolyte additive in a lithium-sulfurized polyacrylonitrile battery
- Shuai, Yi, Zhang, Zeping, Chen, Kanghua, Lou, Jin, Wang, Yu
- Chemical communications 2019 v.55 no.16 pp. 2376-2379
- carbonates, chemical reactions, dendrites, ions, lithium, lithium batteries, polyacrylonitrile, potassium, potassium nitrate
- The formation of lithium dendrites is recognized as the worst problem for lithium metal batteries. Herein, a multifunctional additive is proposed for highly stable lithium metal in the carbonate electrolyte of Li-sulfurized polyacrylonitrile batteries with high areal capacity. This multifunctional electrolyte additive (fluoroethylene carbonate and potassium nitrate) forms a stable hybrid solid electrolyte interphase, and the K⁺ ions provide a self-healing electrostatic shield that can suppress lithium dendrites.