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Coatable Li4SnS4 Solid Electrolytes Prepared from Aqueous Solutions for All-Solid-State Lithium-Ion Batteries

Title
Coatable Li4SnS4 Solid Electrolytes Prepared from Aqueous Solutions for All-Solid-State Lithium-Ion Batteries
Author
정윤석
Keywords
batteries; conductivity; solid electrolytes; solution processes; sulfides
Issue Date
2017-06
Publisher
WILEY-V C H VERLAG GMBH
Citation
CHEMSUSCHEM, v. 10, no. 12, page. 2605-2611
Abstract
Bulk-type all-solid-state lithium-ion batteries (ASLBs) for large-scale energy-storage applications have emerged as a promising alternative to conventional lithium-ion batteries (LIBs) owing to their superior safety. However, the electrochemical performance of bulk-type ASLBs is critically limited by the low ionic conductivity of solid electrolytes (SEs) and poor ionic contact between the active materials and SEs. Herein, highly conductive (0.14 mScm(-1)) and dry-air-stable SEs (Li4SnS4) are reported, which are prepared using a scalable aqueous-solution process. An active material (LiCoO2) coated by solidified Li4SnS4 from aqueous solutions results in a significant improvement in the electrochemical performance of ASLBs. Side-effects of the exposure of LiCoO2 to aqueous solutions are minimized by using predissolved Li4SnS4 solution.
URI
https://onlinelibrary.wiley.com/doi/abs/10.1002/cssc.201700409https://repository.hanyang.ac.kr/handle/20.500.11754/114394
ISSN
1864-5631; 1864-564X
DOI
10.1002/cssc.201700409
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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