Titanium Carbide (MXene) as a Current Collector for Lithium-Ion Batteries

Chueh Han Wang, Narendra Kurra, Mohamed Alhabeb, Jeng-Kuei Chang, Husam N. Alshareef, Yury Gogotsi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)12489-12494
Number of pages6
JournalACS Omega
Volume3
Issue number10
DOIs
StatePublished - 31 Oct 2018

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