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

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. C...

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Bibliographic Details
Published in:ACS nano 2017-06, Vol.11 (6), p.6114-6121
Main Authors: Kim, Joong-Kwon, Kim, Do Hyeong, Joo, Se Hun, Choi, Byeongwook, Cha, Aming, Kim, Kwang Min, Kwon, Tae-Hyuk, Kwak, Sang Kyu, Kang, Seok Ju, Jin, Jungho
Format: Article
Language:English
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Summary: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.
ISSN:1936-0851
1936-086X
DOI:10.1021/acsnano.7b02085