articleAdvanced MaterialsMar 26, 2025BRONZE OA

Interfacial Adsorption Layers Based on Amino Acid Analogues to Enable Dual Stabilization toward Long‐Life Aqueous Zinc Iodine Batteries

JBJie BuPLPeifen LiuGOGenyuan OuMYMinghui YeZWZhipeng Wen

Guangdong University of Technology · Ji Hua Laboratory

PubMed
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Abstract

Abstract Aqueous zinc–iodine (Zn–I 2 ) batteries are promising candidates for large‐scale energy storage due to the merits of low cost and high safety. However, their commercial application is hindered by Zn corrosion and polyiodide shuttle at I 2 cathode. Herein, N,N‐bis(2‐hydroxyethyl)glycine (BHEG) based interfacial adsorption layers are constructed to stabilize Zn anodes and mitigate polyiodide shuttle according to ion–dipole interactions, by using a strategy of electrolyte additive. The tertiary amine (N(CH 2 ) 3 ) and carboxyl (─COO − ) groups in the deprotonated BHEG can reversibly capture H + and dynamically neutralize OH − ions, efficiently buffering the interfacial pH of Zn metal anodes and…

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67
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Authors

9

Topics & keywords

Topics
Keywords
  • Adsorption
  • Materials science
  • Aqueous solution
  • Cathode
  • Electrolyte
  • Zinc
  • Corrosion
  • Anode
UN Sustainable Development Goals
  • Affordable and clean energy
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