| Autor: |
Phonapha Tangthuam, Wathanyu Kao-ian, Jinnawat Sangsawang, Catleya Rojviriya, Prae Chirawatkul, Jitti Kasemchainan, Falko Mahlendorf, Mai Thanh Nguyen, Tetsu Yonezawa, Soorathep Kheawhom |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Materials Science for Energy Technologies, Vol 6, Iss , Pp 417-428 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2589-2991 |
| DOI: |
10.1016/j.mset.2023.04.003 |
| Popis: |
Zinc (Zn) is viewed as a promising anode material for large-scale secondary batteries. However, due to parasitic reactions and uneven Zn distribution during repeated stripping/plating cycles, Zn anodes show inferior performance and stability. To overcome such drawbacks, carboxymethyl cellulose (CMC) as an artificial solid electrolyte interphase (ASEI) is fabricated on a Zn sheet and Zn-graphite composite anode. The roles of CMC-ASEI are examined using X-ray tomography, X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS). Results show that the carboxyl group in CMC can regulate the flux and local concentration of Zn ions at the surface, allowing uniform Zn dissolution/deposition, and can suppress corrosion by reducing water activities on the anode’s surface. At 5 mA cm−2, the Zn-iodine battery having CMC-ASEI can cycle up to 2,000 cycles. This work provides a simple and scalable solution for advanced Zn anodes for Zn-based batteries. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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