Nafion-protected Na 3 V 2 (PO 4 ) 3 electrodes for aqueous zinc-ion batteries: A breakthrough in dissolution resistance and electrochemical enhancement

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Tekin B.

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, vol.307, 2024 (SCI-Expanded)

• Publication Type: Article / Article
• Volume: 307
• Publication Date: 2024
• Doi Number: 10.1016/j.mseb.2024.117534
• Journal Name: MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
• Ondokuz Mayıs University Affiliated: Yes

Abstract

The field of zinc -ion batteries requires advancements in electrode materials and configurations for improved performance and longevity. This research focuses on Na 3 V 2 (PO 4 ) 3 (NVP) as a cathode material for aqueous zincion batteries, addressing its dissolution in Zn(CF 3 SO 3 ) 2 electrolytes. A protective Nafion coating was applied using a dip coating technique, with the optimal 20% Nafion solution yielding a 32- mu m thick coating. EDS analysis confirmed 16.75% Zn insertion, and EIS analysis showed charge -transfer resistances of 10 O (bare) and 30 O (coated). The Nafion-coated NVP demonstrated enhanced electrochemical performance, achieving nearly 90 mAh/g over 55 cycles with 98% capacity retention. This performance surpasses existing benchmarks, highlighting the potential of Nafion-coated NVP in zinc -ion batteries. This work underscores the transformative potential of Nafion-coated NVP in zinc -ion battery technology, providing a pathway for more durable and efficient energy storage solutions.