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Excellent Compatibility of Solvate Ionic Liquids with Sulfide Solid Electrolytes: Toward Favorable Ionic Contacts in Bulk‐Type All‐Solid‐State Lithium‐Ion Batteries
Author(s) -
Oh Dae Yang,
Nam Young Jin,
Park Kern Ho,
Jung Sung Hoo,
Cho SungJu,
Kim Yun Kyeong,
Lee YoungGi,
Lee SangYoung,
Jung Yoon Seok
Publication year - 2015
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201500865
Subject(s) - ionic liquid , materials science , electrolyte , triethylene glycol , fast ion conductor , lithium (medication) , solid state , ionic bonding , ion , sulfide , compatibility (geochemistry) , electrochemistry , inorganic chemistry , plastic crystal , chemical engineering , electrode , organic chemistry , polymer chemistry , chemistry , metallurgy , composite material , phase (matter) , medicine , engineering , endocrinology , catalysis
The excellent stability of sulfide solid electrolytes with solvate ionic liquids Li(triethylene glycol dimethyl ether)bis(trifluoromethanesulfonyl)imide (Li(G3)TFSI), and their application for high‐performance, all‐solid‐state lithium‐ion batteries are successfully demonstrated. The addition of a small amount of Li(G3)TFSI gives an alternative ionic pathway through normally poor solid–solid contacts, leading to a dramatic increase in LiFePO 4 composite electrode capacity.