Three-dimensional hierarchically porous MoS2 foam as high-rate and stable lithium-ion battery anode

Xuan Wei, Chia-Ching Lin, Chuanwan Wu, Nadeem Qaiser, Yichen Cai, Ang-Yu Lu, Kai Qi, Jui-Han Fu, Yu-Hsiang Chiang, Zheng Yang, Lianhui Ding, Ola. S. Ali, Wei Xu, Wenli Zhang, Mohamed Ben Hassine, Jing Kong, Han-Yi Chen () and Vincent Tung ()
Additional contact information
Xuan Wei: King Abdullah University of Science and Technology
Chia-Ching Lin: National Tsing Hua University
Chuanwan Wu: Lawrence Berkeley National Lab, Berkeley
Nadeem Qaiser: King Abdullah University of Science and Technology
Yichen Cai: King Abdullah University of Science and Technology
Ang-Yu Lu: Massachusetts Institute of Technology, Cambridge
Kai Qi: King Abdullah University of Science and Technology
Jui-Han Fu: School of Engineering, The University of Tokyo
Yu-Hsiang Chiang: King Abdullah University of Science and Technology
Zheng Yang: King Abdullah University of Science and Technology
Lianhui Ding: Chemicals R&D Lab at KAUST, Research and Development Center
Ola. S. Ali: Chemicals R&D Lab at KAUST, Research and Development Center
Wei Xu: Chemicals R&D Lab at KAUST, Research and Development Center
Wenli Zhang: Guangdong University of Technology (GDUT), 100 Waihuan Xi Road, Panyu District
Mohamed Ben Hassine: King Abdullah University of Science and Technology
Jing Kong: Massachusetts Institute of Technology, Cambridge
Han-Yi Chen: National Tsing Hua University
Vincent Tung: King Abdullah University of Science and Technology

Nature Communications, 2022, vol. 13, issue 1, 1-12

Abstract: Abstract Architected materials that actively respond to external stimuli hold tantalizing prospects for applications in energy storage, wearable electronics, and bioengineering. Molybdenum disulfide, an excellent two-dimensional building block, is a promising candidate for lithium-ion battery anode. However, the stacked and brittle two-dimensional layered structure limits its rate capability and electrochemical stability. Here we report the dewetting-induced manufacturing of two-dimensional molybdenum disulfide nanosheets into a three-dimensional foam with a structural hierarchy across seven orders of magnitude. Our molybdenum disulfide foam provides an interpenetrating network for efficient charge transport, rapid ion diffusion, and mechanically resilient and chemically stable support for electrochemical reactions. These features induce a pseudocapacitive energy storage mechanism involving molybdenum redox reactions, confirmed by in-situ X-ray absorption near edge structure. The extraordinary electrochemical performance of molybdenum disulfide foam outperforms most reported molybdenum disulfide-based Lithium-ion battery anodes and state-of-the-art materials. This work opens promising inroads for various applications where special properties arise from hierarchical architecture.

Date: 2022
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DOI: 10.1038/s41467-022-33790-z

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