3D Cross-Linked Nanoweb Architecture of Binder-Free TiO2 Electrodes for Lithium Ion Batteries

Title
3D Cross-Linked Nanoweb Architecture of Binder-Free TiO2 Electrodes for Lithium Ion Batteries
Author(s)
송태섭Sangkyu Lee[Sangkyu Lee]Jaehwan Ha[Jaehwan Ha]Junghyun Choi[Junghyun Choi]Jung Woo Lee[Jung Woo Lee]Ungyu Paik[Ungyu Paik]
Keywords
FILM ELECTRODE; ANODE MATERIAL; NANOFIBERS; COMPOSITE; PERFORMANCE; NANOSTRUCTURES; STORAGE; CELLS
Issue Date
201311
Publisher
AMER CHEMICAL SOC
Citation
ACS APPLIED MATERIALS & INTERFACES, v.5, no.22, pp.11525 - 11529
Abstract
The nanoweb structure of TiO2 anode, cross-linked between electrospun nanofibers, is directly fabricated on the current collector by utilizing the fluidity of low glass transition temperature polymer, poly(vinyl acetate), at room temperature. This characteristic enables us to fabricate the nanoweb structure by direct electrospinning on the current collector, followed by uniaxial pressing. This proposed structure facilitates electron transport through the direct conducting pathways between TiO2 active materials and current collector as well as provides strong adhesion strength to the current collector without polymeric binders. Consequently, we could achieve stable cycle performance up to 100 cycles and the excellent rate capability of similar to 60% at high rate charge/discharge condition of 10 C.
URI
http://hdl.handle.net/YU.REPOSITORY/28648http://dx.doi.org/10.1021/am404082h
ISSN
1944-8244
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공과대학 > 신소재공학부 > Articles
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