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Wei S, Wang Y, Chen S, Song L. Structure regulation and synchrotron radiation investigation of cathode materials for aqueous Zn-ion batteries. Chem Sci 2024; 15:7848-7869. [PMID: 38817580 PMCID: PMC11134340 DOI: 10.1039/d4sc00292j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 05/01/2024] [Indexed: 06/01/2024] Open
Abstract
In view of the advantages of low cost, environmental sustainability, and high safety, aqueous Zn-ion batteries (AZIBs) are widely expected to hold significant promise and increasingly infiltrate various applications in the near future. The development of AZIBs closely relates to the properties of cathode materials, which depend on their structures and corresponding dynamic evolution processes. Synchrotron radiation light sources, with their rich advanced experimental methods, serve as a comprehensive characterization platform capable of elucidating the intricate microstructure of cathode materials for AZIBs. In this review, we initially examine available cathode materials and discuss effective strategies for structural regulation to boost the storage capability of Zn2+. We then explore the synchrotron radiation techniques for investigating the microstructure of the designed materials, particularly through in situ synchrotron radiation techniques that can track the dynamic evolution process of the structures. Finally, the summary and future prospects for the further development of cathode materials of AZIBs and advanced synchrotron radiation techniques are discussed.
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Affiliation(s)
- Shiqiang Wei
- National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China Hefei 230029 P. R. China
| | - Yixiu Wang
- National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China Hefei 230029 P. R. China
| | - Shuangming Chen
- National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China Hefei 230029 P. R. China
| | - Li Song
- National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China Hefei 230029 P. R. China
- Zhejiang Institute of Photonelectronics Jinhua 321004 Zhejiang P. R. China
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Wang X, Zhang X, Zhao G, Hong H, Tang Z, Xu X, Li H, Zhi C, Han C. Ether-Water Hybrid Electrolyte Contributing to Excellent Mg Ion Storage in Layered Sodium Vanadate. ACS NANO 2022; 16:6093-6102. [PMID: 35312293 DOI: 10.1021/acsnano.1c11590] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Magnesium ion batteries have potential for large-scale energy storage. However, the high charge density of Mg2+ ions establishes a strong intercalation energy barrier in host materials, causing sluggish diffusion kinetics and structural degradation. Here, we report that the kinetic and dissolution issues connected to cathode materials can be resolved simultaneously using a tetraethylene glycol dimethyl ether (TEGDME)-water hybrid electrolyte. The lubricating and shielding effect of water solvent could boost the swift transport of Mg2+, contributing to a high diffusion coefficient within the sodium vanadate (NaV8O20·nH2O) cathode. Meanwhile, the organic TEGDME component can coordinate with water to diminish its activity, thus providing the hybrid electrolyte with a broad electrochemical window of 3.9 V. More importantly, the TEGDME preferentially amassed at the interface, leading to a robust cathode electrolyte interface layer that suppresses the dissolution of vanadium species. Consequently, the NaV8O20·nH2O cathode achieved a specific capacity of 351 mAh g-1 at 0.3 A g-1 and a long cycle life of 1000 cycles in this hybrid electrolyte. A mechanism study revealed the reversible interaction of Mg2+ during cycles. This organic water hybrid electrolyte is effective for overcoming the difficulty of multivalent ion storage.
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Affiliation(s)
- Xiaoke Wang
- School of Physics and Technology, University of Jinan, Shandong 250022, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - Xixi Zhang
- School of Physics and Technology, University of Jinan, Shandong 250022, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - Gang Zhao
- School of Physics and Technology, University of Jinan, Shandong 250022, China
| | - Hu Hong
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, China
| | - Zijie Tang
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - Xijin Xu
- School of Physics and Technology, University of Jinan, Shandong 250022, China
| | - Hongfei Li
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - Chunyi Zhi
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, China
| | - Cuiping Han
- Faculty of Materials Science and Engineering and Low Dimensional Energy Materials Research Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518055, China
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