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<p>Aqueous zinc-ion batteries (AZIBs) hold great promise for next-generation energy storage but face challenges such as Zn dendrite growth, side reactions, and limited performance at low temperatures. Here, we propose an electrolyte design strategy that reconstructs the hydrogen-bond network through the synergistic effect of glycerol (GL) and methylsulfonamide&#xa0;(MSA), enabling the formation of a (100)-oriented Zn anode. This design significantly broadens the operating current and temperature windows of AZIBs. As a result, Zn||Zn symmetric cells exhibit remarkable cycling stability, achieving 4,000&#xa0;h at 1&#xa0;mA&#xa0;cm<sup>−2</sup> and 600&#xa0;h at 40&#xa0;mA&#xa0;cm<sup>−2</sup> (both at 1 mAh cm<sup>−2</sup> capacity); even at −20&#xa0;°C, Zn||Zn symmetric cells deliver ultra-stable cycling for over 5,400&#xa0;h. Furthermore, Zn||VO<sub>2</sub> full cells retain 77.3% of their capacity after 2,000 cycles at 30&#xa0;°C with a current density of 0.5 A g<sup>−1</sup> and 85.4% capacity retention after 2,000 cycles at −20&#xa0;°C and 0.25 A g<sup>−1</sup>. These results demonstrate a robust pathway for enhancing the practicality and low-temperature adaptability of AZIBs.</p>

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Decoding Hydrogen-Bond Network of Electrolyte for Cryogenic Durable Aqueous Zinc-Ion Batteries

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月3日

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  • Xiyan Wei,
  • Jinpeng Guan,
  • Yongbiao Mu,
  • Yuhan Zou,
  • Xianbin Wei,
  • Lin Yang,
  • Quanyan Man,
  • Chao Yang,
  • Limin Zang,
  • Jingyu Sun,
  • Lin Zeng

摘要

Aqueous zinc-ion batteries (AZIBs) hold great promise for next-generation energy storage but face challenges such as Zn dendrite growth, side reactions, and limited performance at low temperatures. Here, we propose an electrolyte design strategy that reconstructs the hydrogen-bond network through the synergistic effect of glycerol (GL) and methylsulfonamide (MSA), enabling the formation of a (100)-oriented Zn anode. This design significantly broadens the operating current and temperature windows of AZIBs. As a result, Zn||Zn symmetric cells exhibit remarkable cycling stability, achieving 4,000 h at 1 mA cm−2 and 600 h at 40 mA cm−2 (both at 1 mAh cm−2 capacity); even at −20 °C, Zn||Zn symmetric cells deliver ultra-stable cycling for over 5,400 h. Furthermore, Zn||VO2 full cells retain 77.3% of their capacity after 2,000 cycles at 30 °C with a current density of 0.5 A g−1 and 85.4% capacity retention after 2,000 cycles at −20 °C and 0.25 A g−1. These results demonstrate a robust pathway for enhancing the practicality and low-temperature adaptability of AZIBs.