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Kwon, Tae-Hyuk
Energy Recognition
Research Interests
  • Energy transfer, organic solar cells, supercapacitor, ultrasonic spray chemistry, dithienothiophene, iridium complexes, phosphorescent bioapplications

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Hierarchical Chitin Fibers with Aligned Nanofibrillar Architectures: A Nonwoven-Mat Separator for Lithium Metal Batteries

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Title
Hierarchical Chitin Fibers with Aligned Nanofibrillar Architectures: A Nonwoven-Mat Separator for Lithium Metal Batteries
Author
Kim, Joong-KwonKim, Do HyeongJoo, Se HunChoi, ByeongwookCha, AmingKim, Kwang MinKwon, Tae-HyukKwak, Sang KyuKang, Seok JuJin, Jungho
Keywords
chitin fiber; DEMS; Li dendrite; Li− O2 battery; separator
Issue Date
201707
Publisher
AMER CHEMICAL SOC
Citation
ACS NANO, v.11, no.6, pp.6114 - 6121
Abstract
Here, we introduce regenerated fibers of chitin (Chiber), the second most abundant biopolymer after cellulose, and propose its utility as a nonwoven fiber separator for lithium metal batteries (LMBs) that exhibits an excellent electrolyte-uptaking capability and Li-dendrite-mitigating performance. Chiber is produced by a centrifugal jet-spinning technique, which allows a simple and fast production of Chibers consisting of hierarchically aligned self-assembled chitin nanofibers. Following the scrutinization on the Chiber–Li-ion interaction via computational methods, we demonstrate the potential of Chiber as a nonwoven mat-type separator by monitoring it in Li–O2 and Na–O2 cells.
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DOI
http://dx.doi.org/10.1021/acsnano.7b02085
ISSN
1936-0851
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