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An electron/ion pathway reconstruction strategy enabling fast aqueous Zn2+ storage
Wang, Yuanhang1; Yang, Hang1,2; Cai, Dong3; Tan, Yicheng1,2; Li, Li2; Zhang, Yiming1,2; He, Xiaoxi5; Shu, Xin4; Han, Wei2; Chen, Duo1; Shen, Laifa1
2024
Source PublicationMaterials Today Energy
ISSN2468-6069
Volume39Pages:101474
Abstract

Aqueous Zn-ion batteries (ZIBs) are considered ideal alternatives for scalable energy storage due to their reliable safety, affordable cost, and sustainability. However, the further development of ZIBs is limited by the design of the cathode, especially with the kinetic coupling of electron transfer and ion diffusion. Here, we develop an electron/ion pathway reconstruction strategy to enhance the kinetics of Zn storage by designing a composite of reduced graphene oxide-wrapped polyaniline/vanadium oxide superlattices. The superlattice structure of V–O layers stacked with polyaniline enables rapid Zn diffusion due to the enlarged interlayer spacing and redistributed electron structure. Meanwhile, the lamellar superlattices wrapped with rGO optimize the electron transfer pathway and enhance mechanical stability. Therefore, the synergistic optimization between ion migration inside superlattices and charge transport in bulk materials achieves double acceleration for Zn storage kinetics, showing superior rate capability (≥100 mAh/g at 20 A/g) and cycling durability. Moreover, the electrochemical mechanism investigation shows that the as-obtained composite cathode presents highly reversible Zn diffusion behavior and good structural stability through a series of in-situ spectroscopic characterizations. It is hoped that this electron/ion pathway reconstruction strategy can provide a new perspective for the development of high-performance cathodes for aqueous batteries.

KeywordIon diffusIon Reduced Graphene Oxide Superlattice Vanadium Oxides Zinc-ion Battery
DOI10.1016/j.mtener.2023.101474
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:001142963500001
PublisherELSEVIER SCI LTD, 125 London Wall, London EC2Y 5AS, ENGLAND
Scopus ID2-s2.0-85180407905
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorYang, Hang; Chen, Duo; Shen, Laifa
Affiliation1.Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
2.College of Physics, the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, International Center of Future Science, Jilin University, Changchun, 130012, China
3.Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou, 325035, China
4.Science and Technology Industrial Park, Hunan University, Changsha, 410604, China
5.Faculty of Science and Technology, University of Macau, Taipa, Macau SAR, 999078, China
Recommended Citation
GB/T 7714
Wang, Yuanhang,Yang, Hang,Cai, Dong,et al. An electron/ion pathway reconstruction strategy enabling fast aqueous Zn2+ storage[J]. Materials Today Energy, 2024, 39, 101474.
APA Wang, Yuanhang., Yang, Hang., Cai, Dong., Tan, Yicheng., Li, Li., Zhang, Yiming., He, Xiaoxi., Shu, Xin., Han, Wei., Chen, Duo., & Shen, Laifa (2024). An electron/ion pathway reconstruction strategy enabling fast aqueous Zn2+ storage. Materials Today Energy, 39, 101474.
MLA Wang, Yuanhang,et al."An electron/ion pathway reconstruction strategy enabling fast aqueous Zn2+ storage".Materials Today Energy 39(2024):101474.
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