BROWSE

Related Researcher

Author's Photo

Lee, Sang-Young
Energy Soft-Materials Lab (ESML)
Research Interests
  • Soft Materials for Energy Storage/ Conversion Systems

ITEM VIEW & DOWNLOAD

Heterolayered, One-Dimensional Nanobuilding Block Mat Batteries

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Heterolayered, One-Dimensional Nanobuilding Block Mat Batteries
Author
Choi, Keun-HoCho, Sung-JuChun, Sang-JinYoo, Jong TaeLee, Chang KeeKim, WoongWu, QinglinPark, Sang-BumChoi, Don-HaLee, Sun-YoungLee, Sang-Young
Issue Date
2014-10
Publisher
AMER CHEMICAL SOC
Citation
NANO LETTERS, v.14, no.10, pp.5677 - 5686
Abstract
The rapidly approaching smart/wearable energy era necessitates advanced rechargeable power sources with reliable electrochemical properties and versatile form factors. Here, as a unique and promising energy storage system to address this issue, we demonstrate a new class of heterolayered, one-dimensional (1D) nanobuilding block mat (h-nanomat) battery based on unitized separator/electrode assembly (SEA) architecture. The unitized SEAs consist of wood cellulose nanofibril (CNF) separator membranes and metallic current collector-/polymeric binder-free electrodes comprising solely single-walled carbon nanotube (SWNT)-netted electrode active materials (LiFePO4 (cathode) and Li(4)Ti(5)O12 (anode) powders are chosen as model systems to explore the proof of concept for h-nanomat batteries). The nanoporous CNF separator plays a critical role in securing the tightly interlocked electrode-separator interface. The SWNTs in the SEAs exhibit multifunctional roles as electron conductive additives, binders, current collectors and also non-Faradaic active materials. This structural/physicochemical uniqueness of the SEAs allows significant improvements in the mass loading of electrode active materials, electron transport pathways, electrolyte accessibility and misalignment-proof of separator/electrode interface. As a result, the h-nanomat batteries, which are easily fabricated by stacking anode SEA and cathode SEA, provide unprecedented advances in the electrochemical performance, shape flexibility and safety tolerance far beyond those achievable with conventional battery technologies. We anticipate that the h-nanomat batteries will open 1D nanobuilding block-driven new architectural design/opportunity for development of next-generation energy storage systems.
URI
https://scholarworks.unist.ac.kr/handle/201301/8895
URL
http://pubs.acs.org/doi/abs/10.1021/nl5024029
DOI
10.1021/nl5024029
ISSN
1530-6984
Appears in Collections:
ECHE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU