Miao Yu, Jiale Li, Zehua Li, Jiawei Mu, Wenjie Si, Tiantian Li, Wenji Zheng, Yan Dai, Xiangcun Li, Gaohong He
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To address these issues, a novel modification strategy is proposed for glass fiber (GF) separators by incorporating trifluoromethyl-functionalized UiO-66 (CF<sub>3</sub>-UiO-66 and (CF<sub>3</sub>)<sub>2</sub>-UiO-66) through a one-step hydrothermal synthesis. This modification significantly enhances the separator's ability to regulate Zn<sup>2+</sup> flux, accelerates the de-solvation process, and effectively suppresses dendrite growth. The (CF<sub>3</sub>)<sub>2</sub>-UiO-66@GF separator demonstrates outstanding electrochemical performance, achieving stable cycling in Zn||Zn symmetric cells for over 2000 h at 2 mA cm<sup>-2</sup> and 1 mAh cm<sup>-2</sup>, with an extended lifespan of more than 800 h at 5 mA cm<sup>-2</sup> and 2 mAh cm<sup>-2</sup>. Full cells equipped with this separator exhibit superior rate performance and enhanced capacity retention, underscoring the potential of this separator engineering strategy for advancing the performance and practical application of AZIBs.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"701 ","pages":"138636"},"PeriodicalIF":9.7000,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Regulating Zn<sup>2+</sup> flux and transport behavior with CF<sub>3</sub>-functionalized UiO-66 modified separator for high-performance aqueous zinc-ion batteries.\",\"authors\":\"Miao Yu, Jiale Li, Zehua Li, Jiawei Mu, Wenjie Si, Tiantian Li, Wenji Zheng, Yan Dai, Xiangcun Li, Gaohong He\",\"doi\":\"10.1016/j.jcis.2025.138636\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The increasing demand for more sustainable and safer energy storage systems has driven significant interest in finding alternatives to conventional lithium-ion batteries. 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The (CF<sub>3</sub>)<sub>2</sub>-UiO-66@GF separator demonstrates outstanding electrochemical performance, achieving stable cycling in Zn||Zn symmetric cells for over 2000 h at 2 mA cm<sup>-2</sup> and 1 mAh cm<sup>-2</sup>, with an extended lifespan of more than 800 h at 5 mA cm<sup>-2</sup> and 2 mAh cm<sup>-2</sup>. 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引用次数: 0
摘要
对更可持续、更安全的能源存储系统的需求不断增长,促使人们对寻找传统锂离子电池的替代品产生了浓厚的兴趣。可充电水性锌离子电池(azib)由于其高理论容量和天然丰富的锌而成为有前途的候选者。然而,azib的性能往往受到锌阳极不稳定性的限制,导致诸如枝晶形成、副反应和循环稳定性差等挑战。为了解决这些问题,提出了一种新的改性策略,通过一步水热合成法将三氟甲基功能化的UiO-66 (CF3-UiO-66和(CF3)2-UiO-66)加入玻璃纤维(GF)分离器中。该改性显著提高了分离器调节Zn2+通量的能力,加速了脱溶剂过程,有效抑制了枝晶的生长。(CF3)2-UiO-66@GF分离器表现出优异的电化学性能,在2 mA cm-2和1 mAh cm-2下,在Zn||Zn对称电池中稳定循环超过2000小时,在5 mA cm-2和2 mAh cm-2下延长寿命超过800小时。配备该分离器的完整电池具有优越的速率性能和增强的容量保持能力,强调了该分离器工程策略在提高azib性能和实际应用方面的潜力。
Regulating Zn2+ flux and transport behavior with CF3-functionalized UiO-66 modified separator for high-performance aqueous zinc-ion batteries.
The increasing demand for more sustainable and safer energy storage systems has driven significant interest in finding alternatives to conventional lithium-ion batteries. Rechargeable aqueous zinc-ion batteries (AZIBs) have emerged as promising candidates due to their high theoretical capacity and the natural abundance of Zn. However, the performance of AZIBs is often limited by the instability of Zn anodes, leading to challenges such as dendrite formation, side reactions, and poor cycling stability. To address these issues, a novel modification strategy is proposed for glass fiber (GF) separators by incorporating trifluoromethyl-functionalized UiO-66 (CF3-UiO-66 and (CF3)2-UiO-66) through a one-step hydrothermal synthesis. This modification significantly enhances the separator's ability to regulate Zn2+ flux, accelerates the de-solvation process, and effectively suppresses dendrite growth. The (CF3)2-UiO-66@GF separator demonstrates outstanding electrochemical performance, achieving stable cycling in Zn||Zn symmetric cells for over 2000 h at 2 mA cm-2 and 1 mAh cm-2, with an extended lifespan of more than 800 h at 5 mA cm-2 and 2 mAh cm-2. Full cells equipped with this separator exhibit superior rate performance and enhanced capacity retention, underscoring the potential of this separator engineering strategy for advancing the performance and practical application of AZIBs.
期刊介绍:
The Journal of Colloid and Interface Science publishes original research findings on the fundamental principles of colloid and interface science, as well as innovative applications in various fields. The criteria for publication include impact, quality, novelty, and originality.
Emphasis:
The journal emphasizes fundamental scientific innovation within the following categories:
A.Colloidal Materials and Nanomaterials
B.Soft Colloidal and Self-Assembly Systems
C.Adsorption, Catalysis, and Electrochemistry
D.Interfacial Processes, Capillarity, and Wetting
E.Biomaterials and Nanomedicine
F.Energy Conversion and Storage, and Environmental Technologies