π–π Stacking Induces Fast Zinc Ion Flux for High Power Zinc Ion Devices
Metallic zinc has been regarded as an ideal anode material for aqueous batteries due to its high capacity, abundance, and low toxicity. Numerous strategies have been proposed for anode protection to address its intrinsic deficiencies. However, existing methods can only suppress dendrite growth at limited current densities, and achieving stable cycling at high rates remains a great challenge. Herein, density functional theory (DFT) reveals that Mn-MOF, with a distinctive π-π stacking structure (π-MOF), can induce accelerated ion transfer dynamics, providing high-speed pathways for Zn<sup>2+</sup> flux, which can enable stable deposition even at high rates. As anticipated, the π-MOF@Zn anode exhibits remarkable stability for over 1900 h with the lowest voltage hysteresis (71 mV) at a current density of 10 mA cm<sup>-2</sup>. This study presents a viable approach to enhance the interface stability of high-rate metal anodes by modulating charge or ion behavior at the interface.
Authors
- Xiangting Xiao
- Xiaobo Ji (ORCID: https://orcid.org/0000-0002-5405-7913)
- Dengyi Xiong
- Hongshuai Hou (ORCID: https://orcid.org/0000-0001-8201-4614)
- Guoqiang Zou (ORCID: https://orcid.org/0000-0001-7115-6190)
- Jiugang Hu (ORCID: https://orcid.org/0000-0002-5702-9547)
- Shusheng Tao
- Yuming Shu
- Ziwei Cao (ORCID: https://orcid.org/0000-0002-8788-7972)
- Chang Liu (ORCID: https://orcid.org/0000-0001-5561-7137)
- Yulin Zhou (ORCID: https://orcid.org/0000-0002-1466-1112)
- Song Bai (ORCID: https://orcid.org/0009-0005-0279-4945)
- Wentao Deng (ORCID: https://orcid.org/0000-0002-2064-2970)
Institutions
- Central South University (CN)
- Hunan Institute of Engineering (CN)
- The First People's Hospital of Changde (CN)
Publication Details
- Journal
- The Journal of Physical Chemistry Letters
- Published
- 2024-08-09
- DOI
- https://doi.org/10.1021/acs.jpclett.4c01780
- Citations
- 3
- Primary Topic
- Advanced battery technologies research
- Type
- article
- Field-Weighted Citation Impact
- 0.63
Funders
- Key Project of Research and Development Plan of Hunan Province
- National Natural Science Foundation of China
- Natural Science Foundation of Hunan Province
- Science and Technology Program of Hunan Province
- Scientific Research Foundation of Hunan Provincial Education Department
- Innovation-Driven Project of Central South University