@article{Wang_Huang_Lu_Pan_Xu_Sun_Yan_Jiang_2021, title={Reversible Magnesium Metal Anode Enabled by Cooperative Solvation/Surface Engineering in Carbonate Electrolytes}, volume={13}, url={https://nmlett.org/index.php/nml/article/view/961}, DOI={10.1007/s40820-021-00716-1}, abstractNote={<p>Magnesium metal anode holds great potentials toward future high energy and safe rechargeable magnesium battery technology due to its divalent redox and dendrite-free nature. Electrolytes based on Lewis acid chemistry enable the reversible Mg plating/stripping, while they fail to match most cathode materials toward high-voltage magnesium batteries. Herein, reversible Mg plating/stripping is achieved in conventional carbonate electrolytes enabled by the cooperative solvation/surface engineering. Strongly electronegative Cl from the MgCl<sub>2</sub> additive of electrolyte impairs the Mg…O = C interaction to reduce the Mg<sup>2+</sup> desolvation barrier for accelerated redox kinetics, while the Mg<sup>2+</sup>-conducting polymer coating on the Mg surface ensures the facile Mg<sup>2+</sup> migration and the effective isolation of electrolytes. As a result, reversible plating and stripping of Mg is demonstrated with a low overpotential of 0.7&nbsp;V up to 2000 cycles. Moreover, benefitting from the wide electrochemical window of carbonate electrolytes, high-voltage (&gt; 2.0&nbsp;V) rechargeable magnesium batteries are achieved through assembling the electrode couple of Mg metal anode and Prussian blue-based cathodes. The present work provides a cooperative engineering strategy to promote the application of magnesium anode in carbonate electrolytes toward high energy rechargeable batteries.</p> <p>Highlights:</p> <p>1 A cooperative solvation/surface engineering approach is reported to achieve the reversible Mg plating/stripping in conventional carbonate electrolytes.<br>2 Benefitting from the strategy, Mg<sup>2+</sup> can easily overcome the reduced desolvation barrier and penetrate the Mg<sup>2+</sup>-conducting polymer coating, deposited on the Mg metal anode successfully, promoting the application of magnesium anode in carbonate electrolytes toward high-energy rechargeable batteries.</p>}, journal={Nano-Micro Letters}, author={Wang, Caiyun and Huang, Yao and Lu, Yunhao and Pan, Hongge and Xu, Ben Bin and Sun, Wenping and Yan, Mi and Jiang, Yinzhu}, year={2021}, month={Sep.}, pages={195} }