Hydrophobic Molecule Monolayer Brush-Tethered Zinc Anodes for Aqueous Zinc Batteries,ACS Applied Materials & Interfaces

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Hydrophobic Molecule Monolayer Brush-Tethered Zinc Anodes for Aqueous Zinc Batteries
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2021-12-08 , DOI: 10.1021/acsami.1c20995
Peichao Zou ₁ , Dmytro Nykypanchuk ₂ , Gregory Doerk ₂ , Huolin L Xin ₁

Affiliation

Aqueous zinc batteries are of great interest as a rechargeable energy storage system, particularly owing to the low cost and high safety of aqueous electrolytes, as well as the high capacity of zinc anodes. Unfortunately, the wide commercialization of aqueous zinc batteries is impeded by the irreversible water reduction and irregular zinc evolution issues on the anode side. Hereby, a hydrophobic and ultrathin polystyrene molecule brush layer is tethered onto the surface of zinc metal anodes to tackle the above limitations. Experimental investigations reveal that the waterproof artificial layer can sustain fast interfacial ionic transportation, minimize hydrogen evolution, and smoothen Zn deposition, thus conferring enhanced electrochemical performance to the as-protected Zn anode in both symmetric Zn//Zn cells and Zn//LiV₃O₈ full cells.

中文翻译：

用于水性锌电池的疏水性分子单层刷拴锌阳极

水系锌电池作为可充电储能系统备受关注，特别是由于水系电解质的低成本和高安全性以及锌负极的高容量。不幸的是，阳极侧不可逆的水还原和不规则的锌析出问题阻碍了水性锌电池的广泛商业化。因此，疏水性和超薄的聚苯乙烯分子刷层被束缚在锌金属阳极的表面上，以解决上述限制。实验研究表明，防水人工层可以维持快速的界面离子传输，最大限度地减少析氢，并使锌沉积平滑，从而增强对称 Zn//Zn 电池和 Zn//LiV _{3 中}受保护的 Zn 阳极的电化学性能O _{8 个}完整的细胞。

更新日期：2021-12-22

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