April 22 - 26, 2024
Seattle, Washington
May 7 - 9, 2024 (Virtual)

Event Supporters

2024 MRS Spring Meeting
NM01.04.02

A Mechanistic Study of MXene Current Collectors for Lithium-Metal-Based Batteries

When and Where

Apr 24, 2024
1:45pm - 2:00pm
Room 330, Level 3, Summit

Presenter(s)

Co-Author(s)

Ruocun Wang1,2,Raymond Unocic3,Jaehoon Choi4,Yan Burets1,2,Mark Anayee1,2,Geetha Valurouthu1,2,Wan-Yu Tsai3,Yury Gogotsi1,2

A.J. Drexel Nanomaterials Institute1,Drexel University2,Oak Ridge National Laboratory3,University of Picardie Jules Verne4

Abstract

Ruocun Wang1,2,Raymond Unocic3,Jaehoon Choi4,Yan Burets1,2,Mark Anayee1,2,Geetha Valurouthu1,2,Wan-Yu Tsai3,Yury Gogotsi1,2

A.J. Drexel Nanomaterials Institute1,Drexel University2,Oak Ridge National Laboratory3,University of Picardie Jules Verne4
Lithium metal is widely investigated as a high-energy-density anode replacement for graphite in lithium-ion batteries. It is important for next-generation lithium-metal-based battery technologies. However, lithium dendrites tend to grow during deposition and stripping, resulting in poor battery life or short circuits. Literature shows that using MXene instead of copper as the current collector can mitigate lithium dendrite growth. Two mainstream hypotheses for dendrite suppression include forming a hexagonal close-packed structured lithium layer and a homogeneous growth of solid-electrolyte interphase (SEI) on the surface of MXene. However, there is a lack of experimental evidence to support those hypotheses. Here we used a suite of characterization techniques, including cryo-transmission electron microscopy (cryo-TEM), X-ray photoelectron spectroscopy (XPS), <i>in situ </i>Raman spectroscopy, scanning electron microscopy (SEM), and <i>operando</i> optical microscopy to investigate the crystal structure, SEI, and morphology of lithium nucleated on Ti<sub>3</sub>C<sub>2</sub>T<i><sub>x</sub> </i>MXene at different rates and capacity.

Keywords

2D materials | electrodeposition

Symposium Organizers

Stefano Ippolito, Drexel University
Michael Naguib, Tulane University
Zhimei Sun, Beihang University
Xuehang Wang, Delft University of Technology

Symposium Support

Gold
Murata Manufacturing Co., Ltd.

Silver
INNOMXENE Co.,Ltd.

Bronze
Energy Advances
Progress in Materials Science The Institution of Engineering and Technology (IET)

Session Chairs

Alex Inman
Stefano Ippolito

In this Session