Bendable and Thin Sulfide Solid Electrolyte Film: A New Electrolyte Opportunity for Free-Standing and Stackable High-Energy All-Solid-State Lithium-Ion Batteries

Bulk-type all-solid-state lithium batteries (ASLBs) are considered a promising candidate to outperform the conventional lithium-ion batteries. Unfortunately, the current technology level of ASLBs is in a stage of infancy in terms of cell-based (not electrode-material-based) energy densities and scal...

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Bibliographic Details
Published in:Nano letters 2015-05, Vol.15 (5), p.3317-3323
Main Authors: Nam, Young Jin, Cho, Sung-Ju, Oh, Dae Yang, Lim, Jun-Muk, Kim, Sung Youb, Song, Jun Ho, Lee, Young-Gi, Lee, Sang-Young, Jung, Yoon Seok
Format: Article
Language:English
Subjects:
Energy density
Formability
Lithium-ion batteries
Nanostructure
Rechargeable batteries
Scaffolds
Solid electrolytes
Sulfides
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Summary:Bulk-type all-solid-state lithium batteries (ASLBs) are considered a promising candidate to outperform the conventional lithium-ion batteries. Unfortunately, the current technology level of ASLBs is in a stage of infancy in terms of cell-based (not electrode-material-based) energy densities and scalable fabrication. Here, we report on the first ever bendable and thin sulfide solid electrolyte films reinforced with a mechanically compliant poly­(paraphenylene terephthalamide) nonwoven (NW) scaffold, which enables the fabrication of free-standing and stackable ASLBs with high energy density and high rate capabilities. The ASLB, using a thin (∼70 μm) NW-reinforced SE film, exhibits a 3-fold increase of the cell-energy-density compared to that of a conventional cell without the NW scaffold.
ISSN:1530-6984
1530-6992
DOI:10.1021/acs.nanolett.5b00538