电解质
插层(化学)
水溶液
阴极
阳极
化学
电化学
共晶体系
无机化学
深共晶溶剂
溶剂
溶剂化
电池(电)
吸附
化学工程
有机化学
物理化学
结晶学
电极
微观结构
功率(物理)
物理
量子力学
工程类
作者
Yu Zhong,Xuesong Xie,Zhiyuan Zeng,Bingan Lu,Gen Chen,Shuquan Liang
标识
DOI:10.1002/anie.202310577
摘要
Abstract Aqueous rechargeable zinc‐ion batteries (ARZBs) are impeded by the mutual problems of unstable cathode, electrolyte parasitic reactions, and dendritic growth of zinc (Zn) anode. Herein, a triple‐functional strategy by introducing the tetramethylene sulfone (TMS) to form a hydrated eutectic electrolyte is reported to ameliorate these issues. The activity of H 2 O is inhibited by reconstructing hydrogen bonds due to the strong interaction between TMS and H 2 O. Meanwhile, the preferentially adsorbed TMS on the Zn surface increases the thickness of double electric layer (EDL) structure, which provides a shielding buffer layer to suppress dendrite growth. Interestingly, TMS modulates the primary solvation shell of Zn 2+ ultimately to achieve a novel solvent co‐intercalation ((Zn‐TMS) 2+ ) mechanism, and the intercalated TMS works as a “pillar” that provides more zincophilic sites and stabilizes the structure of cathode (NH 4 V 4 O 10 , (NVO)). Consequently, the Zn||NVO battery exhibits a remarkably high specific capacity of 515.6 mAh g −1 at a low current density of 0.2 A g −1 for over 40 days. This multi‐functional electrolytes and solvent co‐intercalation mechanism will significantly propel the practical development of aqueous batteries.
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