Functionalized Nanocellulose-Integrated Heterolayered Nanomats toward Smart Battery Separators

Jung Hwan Kim, Minsu Gu, Do Hyun Lee, Jeong Hoon Kim, Yeon Su Oh, Sa Hoon Min, Byeong Su Kim, Sang Young Lee

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Alternative materials obtained from natural resources have recently garnered considerable attention as an innovative solution to bring unprecedented advances in various energy storage systems. Here, we present a new class of heterolayered nanomat-based hierarchical/asymmetric porous membrane with synergistically coupled chemical activity as a nanocellulose-mediated green material strategy to develop smart battery separator membranes far beyond their current state-of-the-art counterparts. This membrane consists of a terpyridine (TPY)-functionalized cellulose nanofibril (CNF) nanoporous thin mat as the top layer and an electrospun polyvinylpyrrolidone (PVP)/polyacrylonitrile (PAN) macroporous thick mat as the support layer. The hierarchical/asymmetric porous structure of the heterolayered nanomat is rationally designed with consideration of the trade-off between leakage current and ion transport rate. The TPY (to chelate Mn2+ ions) and PVP (to capture hydrofluoric acid)-mediated chemical functionalities bring a synergistic coupling in suppressing Mn2+-induced adverse effects, eventually enabling a substantial improvement in the high-temperature cycling performance of cells.

Original languageEnglish
Pages (from-to)5533-5541
Number of pages9
JournalNano letters
Volume16
Issue number9
DOIs
Publication statusPublished - 2016 Sep 14

Fingerprint

separators
Separators
Povidone
membranes
Membranes
Ions
Hydrofluoric Acid
Hydrofluoric acid
polyacrylonitrile
Polyacrylonitriles
hydrofluoric acid
Natural resources
energy storage
cellulose
chelates
Cellulose
Leakage currents
Energy storage
resources
ions

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Kim, J. H., Gu, M., Lee, D. H., Kim, J. H., Oh, Y. S., Min, S. H., ... Lee, S. Y. (2016). Functionalized Nanocellulose-Integrated Heterolayered Nanomats toward Smart Battery Separators. Nano letters, 16(9), 5533-5541. https://doi.org/10.1021/acs.nanolett.6b02069
Kim, Jung Hwan ; Gu, Minsu ; Lee, Do Hyun ; Kim, Jeong Hoon ; Oh, Yeon Su ; Min, Sa Hoon ; Kim, Byeong Su ; Lee, Sang Young. / Functionalized Nanocellulose-Integrated Heterolayered Nanomats toward Smart Battery Separators. In: Nano letters. 2016 ; Vol. 16, No. 9. pp. 5533-5541.
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Functionalized Nanocellulose-Integrated Heterolayered Nanomats toward Smart Battery Separators. / Kim, Jung Hwan; Gu, Minsu; Lee, Do Hyun; Kim, Jeong Hoon; Oh, Yeon Su; Min, Sa Hoon; Kim, Byeong Su; Lee, Sang Young.

In: Nano letters, Vol. 16, No. 9, 14.09.2016, p. 5533-5541.

Research output: Contribution to journalArticle

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