张亮教授及其合作者在adv. funct. mater.上发表论文-尊龙凯时

作者：

yawen xie^1#, lei wang^1#, jiechang gao^1#, shucheng shi², ni yin³, shiqi shen¹, shusheng huang¹, tianran yan¹, yang ling¹, qi chen³, pan zeng⁴, yong han²*, zhi liu², tiefeng liu⁵*, and liang zhang¹*

单位：

¹institute of functional nano & soft materials (funsom), soochow university, jiangsu key laboratory of advanced negative carbon technologies, soochow university, suzhou 215123, china.

²school of physical science and technology, shanghaitech university, center for transformative science, shanghaitech university, shanghai 201210, china.

³suzhou institute of nano-tech and nano-bionics, chinese academy of sciences, suzhou 215123, china

⁴institute for advanced study, school of mechanical engineering, chengdu university, chengdu 610106, china

⁵institute of chemical and biological engineering, zhejiang university, hangzhou 310027, china. quzhou institute of power battery and grid energy storage, quzhou 324000, china

摘要：

the large-scale application of low-cost and environmentally-compatible aqueous zn-ion batteries (azibs) is largely hindered by the zn dendrite growth stemming from inhomogeneous zn deposition. to tackle this challenge, 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid is introduced as electrolyte additive to in situ construct ordered self-assembled monolayers on the zn anode (zn@hepes), providing uniform active sites as zn² nucleus regulators that can be dynamically and spontaneously replenished according to environmental conditions. meanwhile, because of the regulated zn² solvation sheath and the hydrophobicity of zn@hepes, the direct contact between active water molecules and zn anode is effectively ameliorated, which promotes the zn²  transport and deposition kinetics. the above synergistic effects enable highly reversible zn redox chemistry to achieve a uniform and dense zn electrodeposition with suppressed zn dendrite growth. consequently, the thus-derived zn||zn symmetric cells exhibit an excellent long-term stability for 4000 h at a current density of 1 ma cm⁻². additionally, with the aid of zn@hepes, the full cells coupling zn anode and mno₂ cathode also demonstrate superior reaction reversibility and capacity retention. this work demonstrates a distinctive avenue at the molecular level for precisely regulating the zn electrodeposition process to achieve practical azibs.

影响因子：

18.5

分区情况：

一区

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