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Development of artificial zincophilic polymeric nanolayers on zinc anodes for high-performance zinc batteries
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- Authors
- Jongha Hwang, Yanghyun Cho, Dayeong Gang, Chi Keung Song, Myung-Jun Kwak, Dong Ok Shin, Minsu Gu, Woo-Jin Song
- Issue Date
- 2025-07
- Citation
- Chemical Engineering Journal, v.515, pp.1-10
- ISSN
- 1385-8947
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Abstract
- Aqueous Zn-ion batteries are promising energy-storage devices; however, dendrite growth and undesirable reactions impede their advancement. Herein, we design a Zn-bonded selective ion transport layer with poly(acrylic acid) via O
2 plasma treatment. This strategy enhances the wettability of the aqueous electrolyte and the adhesion of the polymeric layer between the aqueous electrolyte and Zn anode. The Zn-bonded polymeric nanolayers (ZHPs) capture anionic salts and suppress side reactions. The fabricated Zn@ZHP symmetric cell and Zn@ZHP||ZnV2 O5 full cell demonstrate significantly improved cycle stability of 2,200 h at 10 mA cm−2 of 1 mA h cm−2 (compared to 250 h for bare Zn). Additionally, the full cell retains 95 % of its capacity at 1 A g−1 after 500 cycles (compared to 75.4 % for bare Zn). The ZHP-designed anode also exhibits stable cycling for over 300 cycles at 5 A g−1 in a pouch-type cell. Thus, the functional layer demonstrates considerable potential for enhancing the stability of aqueous metal batteries.
- KSP Keywords
- Aqueous electrolyte, Dendrite growth, Energy Storage Devices, Energy storage(ES), Full cell, Functional layer, High performance, Ion batteries, Poly(acrylic acid)(PAAc), Side reactions, Symmetric cell