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Lithium Azide as an Electrolyte Additive for All‐Solid‐State Lithium–Sulfur Batteries
Author(s) -
Eshetu Gebrekidan Gebresilassie,
Judez Xabier,
Li Chunmei,
Bondarchuk Oleksandr,
RodriguezMartinez Lide M.,
Zhang Heng,
Armand Michel
Publication year - 2017
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.201709305
Subject(s) - electrolyte , anode , lithium (medication) , polysulfide , passivation , inorganic chemistry , materials science , battery (electricity) , lithium nitrate , lithium vanadium phosphate battery , faraday efficiency , chemistry , chemical engineering , nanotechnology , ion , layer (electronics) , electrode , ionic bonding , organic chemistry , physics , medicine , power (physics) , quantum mechanics , engineering , endocrinology
Of the various beyond‐lithium‐ion battery technologies, lithium–sulfur (Li–S) batteries have an appealing theoretical energy density and are being intensely investigated as next‐generation rechargeable lithium‐metal batteries. However, the stability of the lithium‐metal (Li°) anode is among the most urgent challenges that need to be addressed to ensure the long‐term stability of Li–S batteries. Herein, we report lithium azide (LiN 3 ) as a novel electrolyte additive for all‐solid‐state Li–S batteries (ASSLSBs). It results in the formation of a thin, compact and highly conductive passivation layer on the Li° anode, thereby avoiding dendrite formation, and polysulfide shuttling. It greatly enhances the cycling performance, Coulombic and energy efficiencies of ASSLSBs, outperforming the state‐of‐the‐art additive lithium nitrate (LiNO 3 ).