Regulating interfacial ion migration with pillar effect in layer-by-layer inter-embedded MoS2/Ti3C2 for high-performance zinc-ion batteries

Feier Niu; Yueyuan Mao; Nana Wang; Zhenying Feng; Junming Chen; Longqiang Ye; Shaoqing Zhang; Zhongchao Bai; Shixue Dou

doi:10.1016/j.jcis.2023.11.073

Regulating interfacial ion migration with pillar effect in layer-by-layer inter-embedded MoS₂/Ti₃C₂ for high-performance zinc-ion batteries

J Colloid Interface Sci. 2024 Feb:655:760-770. doi: 10.1016/j.jcis.2023.11.073. Epub 2023 Nov 13.

Authors

Feier Niu¹, Yueyuan Mao², Nana Wang³, Zhenying Feng², Junming Chen², Longqiang Ye², Shaoqing Zhang², Zhongchao Bai⁴, Shixue Dou⁵

Affiliations

¹ College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu 233000, PR China; Anhui Province Quartz Sand Purification and Photovoltaic Glass Engineering Research Center, Bengbu 233000, PR China.
² College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu 233000, PR China.
³ Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong Innovation Campus, North Wollongong, New South Wales 2500, Australia.
⁴ Institute of Energy Materials Science (IEMS), University of Shanghai for Science and Technology, Shanghai 200093, PR China. Electronic address: baizhongchao@tyut.edu.cn.
⁵ Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong Innovation Campus, North Wollongong, New South Wales 2500, Australia; Institute of Energy Materials Science (IEMS), University of Shanghai for Science and Technology, Shanghai 200093, PR China.

PMID: 37976749
DOI: 10.1016/j.jcis.2023.11.073

Abstract

Two-dimensional (2D) layered materials have promising prospects for Zn-storage due to their flexible and adjustable interlayer architecture. The strong electrostatic interaction and high diffusion energy barrier, however, lead to slow diffusion kinetics of Zn-ions between the 2D interfaces, limiting its widespread application. Herein, Ti₃C₂ MXene is introduced into the MoS₂ interlayer by the "pillar effect" to assemble a layer-by-layer inter-embedded structure (L-MoS₂/Ti₃C₂), which provides sufficient diffusion channels for Zn-ions. DFT computations and GITT confirm that the L-MoS₂/Ti₃C₂ exhibits superior Zn-ions migration kinetics. Therefore, L-MoS₂/Ti₃C₂ shows excellent long-term cycling stability (75.6% capacity retention after 7000 cycles at 15 A g^-1) and glorious high-rate capability (107 mAh g^-1 at 20 A g^-1). In addition, the practical application of this material is demonstrated by evaluating the performance of L-MoS₂/Ti₃C₂ in flexible quasi-solid-state aqueous zinc ion batteries under various extreme bending conditions, which exhibits good stability under 180° during the 4000 cycles with a capacity retention of 80.5% at 2.0 A g^-1.

Keywords: Aqueous zinc ion batteries; Diffusion kinetics; Flexible battery; MoS(2); Pillared structures.