锌
电解质
法拉第效率
枝晶(数学)
阳极
电镀(地质)
剥离(纤维)
成核
材料科学
金属
无机化学
化学工程
化学
电极
冶金
有机化学
复合材料
物理化学
几何学
数学
工程类
地球物理学
地质学
作者
Hongbo Chen,Hao Meng,Tong-Rui Zhang,Qing Ran,Jie Liu,Hang Shi,Gao‐Feng Han,Tonghui Wang,Zi Wen,Xingyou Lang,Qing Jiang
标识
DOI:10.1002/anie.202402327
摘要
Metallic zinc is a promising anode material for rechargeable aqueous multivalent metal-ion batteries due to its high capacity and low cost. However, the practical use is always beset by severe dendrite growth and parasitic side reactions occurring at anode/electrolyte interface. Here we demonstrate dynamic molecular interphases caused by trace dual electrolyte additives of D-mannose and sodium lignosulfonate for ultralong-lifespan and dendrite-free zinc anode. Triggered by plating and stripping electric fields, the D-mannose and lignosulfonate species are alternately and reversibly (de-)adsorbed on Zn metal, respectively, to accelerate Zn2+ transportation for uniform Zn nucleation and deposition and inhibit side reactions for high Coulombic efficiency. As a result, Zn anode in such dual-additive electrolyte exhibits highly reversible and dendrite-free Zn stripping/plating behaviors for >6400 hours at 1 mA cm-2, which enables long-term cycling stability of Zn||ZnxMnO2 full cell for more than 2000 cycles.
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