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Enabling High‐Voltage Lithium Metal Batteries by Manipulating Solvation Structure in Ester Electrolyte
Author(s) -
Jie Yulin,
Liu Xiaojing,
Lei Zhanwu,
Wang Shiyang,
Chen Yawei,
Huang Fanyang,
Cao Ruiguo,
Zhang Genqiang,
Jiao Shuhong
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201914250
Subject(s) - electrolyte , faraday efficiency , lithium (medication) , anode , inorganic chemistry , lithium vanadium phosphate battery , materials science , cathode , lithium cobalt oxide , battery (electricity) , solvation , metal , lithium nitrate , lithium metal , chemical engineering , electrode , chemistry , solvent , lithium ion battery , organic chemistry , ionic bonding , ion , metallurgy , medicine , power (physics) , physics , quantum mechanics , engineering , endocrinology
Lithium metal is an ideal electrode material for future rechargeable lithium metal batteries. However, the widespread deployment of metallic lithium anode is significantly hindered by its dendritic growth and low Coulombic efficiency, especially in ester solvents. Herein, by rationally manipulating the electrolyte solvation structure with a high donor number solvent, enhancement of the solubility of lithium nitrate in an ester‐based electrolyte is successfully demonstrated, which enables high‐voltage lithium metal batteries. Remarkably, the electrolyte with a high concentration of LiNO 3 additive presents an excellent Coulombic efficiency up to 98.8 % during stable galvanostatic lithium plating/stripping cycles. A full‐cell lithium metal battery with a lithium nickel manganese cobalt oxide cathode exhibits a stable cycling performance showing limited capacity decay. This approach provides an effective electrolyte manipulation strategy to develop high‐voltage lithium metal batteries.