Open AccessTitanium Carbide (MXene) as a Current Collector for Lithium-Ion Batteries
Author(s) -
Chueh-Han Wang,
Narendra Kurra,
Mohamed Alhabeb,
JengKuei Chang,
Husam N. Alshareef,
Yury Gogotsi
Publication year - 2018
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.8b02032
Subject(s) - mxenes , materials science , current collector , titanium carbide , anode , electrode , battery (electricity) , nitride , cathode , titanium , carbide , lithium (medication) , gravimetric analysis , current (fluid) , optoelectronics , nanotechnology , composite material , metallurgy , layer (electronics) , electrical engineering , electrolyte , chemistry , medicine , power (physics) , physics , engineering , quantum mechanics , endocrinology , organic chemistry
MXenes are a class of two-dimensional (2D) transition-metal carbides and nitrides that are currently at the forefront of 2D materials research. In this study, we demonstrate the use of metallically conductive free-standing films of 2D titanium carbide (MXene) as current-collecting layers (conductivity of ∼8000 S/cm, sheet resistance of 0.5 Ω/sq) for battery electrode materials. Multilayer Ti 3 C 2 T x (T x : surface functional groups -O, -OH, and -F) is used as an anode material and LiFePO 4 as a cathode material on 5 μm MXene films. Our results show that the capacities and rate performances of electrode materials using Ti 3 C 2 T x MXene current collectors match those of conventional Cu and Al current collectors, but at significantly reduced device weight and thickness. This study opens new avenues for developing MXene-based current collectors for improving volumetric and gravimetric performances of energy-storage devices.
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