Academic Journal
Breaking the Ice: Hofmeister Effect-Inspired Hydrogen Bond Network Reconstruction in Hydrogel Electrolytes for High-Performance Zinc-Ion Batteries.
| العنوان: | Breaking the Ice: Hofmeister Effect-Inspired Hydrogen Bond Network Reconstruction in Hydrogel Electrolytes for High-Performance Zinc-Ion Batteries. |
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| المؤلفون: | Tan, Hao, Meng, Chao, Chen, Hao, Yang, Jia-Lin, Cao, Jun-Ming, Wu, Xing-Long, Wang, Jian-Jun |
| المصدر: | Small ; ISSN:1613-6829 |
| بيانات النشر: | Wiley |
| سنة النشر: | 2024 |
| المجموعة: | PubMed Central (PMC) |
| مصطلحات موضوعية: | Hofmeister effect, chaotropic anions, hydrogel electrolyte, hydrogen bond network, zinc‐ion batteries |
| الوصف: | Gel electrolytes have emerged as a promising solution for enhancing the performance of zinc-ion batteries (ZIBs), particularly in flexible devices. However, they face challenges such as low-temperature inefficiency, constrained ionic conductivity, and poor mechanical strength. To address these issues, this study presents a novel PAMCD gel electrolyte with tunable freezing point and mechanical properties for ZIBs, blending the high ionic conductivity of polyacrylamide with the anion interaction capability of β-cyclodextrin. Leveraging the Hofmeister effect, the chaotropic anions of ClO4 - are integrated to weaken hydrogen bonds, enhancing the mechanical and anti-freezing properties. The chaotropic salt disrupts the hydrogen bond network within water molecules, increasing weaker bonds and forming contact ion pairs, while polyacrylamide chains bind water molecules, further destabilizing hydrogen bonds. These changes improve Zn2+ ion mobility, mechanical resilience, and reduce the freezing point, significantly boosting ZIB performance. Consequently, the Zn-Zn symmetric cells achieve remarkable lifespans over 5290 hours at 0.5 mA cm-2 and 1960 hours at 5 mA cm-2, and the Zn-polyaniline full batteries maintain a high capacity of 100.8 mAh g-1 at 2 A g-1, even at -40 °C, over 7600 cycles, showcasing superior cyclability and rate performance. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | https://doi.org/10.1002/smll.202410746; https://pubmed.ncbi.nlm.nih.gov/39737618 |
| DOI: | 10.1002/smll.202410746 |
| الاتاحة: | https://doi.org/10.1002/smll.202410746 https://pubmed.ncbi.nlm.nih.gov/39737618 |
| Rights: | © 2024 Wiley‐VCH GmbH. |
| رقم الانضمام: | edsbas.8E399824 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/smll.202410746 |
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