可充电镁空气电池的最新进展,Advanced Energy Materials

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可充电镁空气电池的最新进展
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2017-08-22 , DOI: 10.1002/aenm.201700869
Chun-Sheng Li ₁ , Yan Sun ₁ , Florian Gebert ₂ , Shu-Lei Chou ₂

Affiliation

可充电的Mg空气电池是锂电池的有前途的替代品，因为它安全，源自地球上丰富资源的低价格以及高理论体积密度（Mg阳极为3832 A h L ^-1与2062 A h L对于Li ^-1）。只有极少的作品与高度可逆的镁空气电池有关。阻碍二次Mg-空气电池快速发展的根本科学难题归因于热力学和动力学特性差，这主要归因于MgO或MgO ₂绝缘膜作为呼吸用阴极上的初始放电产物，有助于增加大的超电势和高极化度。最近，可充电的镁空气电池取得了显着的进展，试图通过结合第一原理计算和实验研究来克服有机电解质的主要局限性。因此，本进展报告重点介绍了对二次Mg-空气电池历史上主要进展的全面而简洁的调查，并详细说明了相应的反应机理。概述专门为操纵纳米结构开辟了一个新领域，以控制新型电池构型中的理想反应途径，并充分了解未来的Mg-空气电池，它具有提高的能量密度和循环能力。

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Current Progress on Rechargeable Magnesium–Air Battery

Rechargeable Mg–air batteries are a promising alternative to Li–air cells owing to the safety, low price originating from the abundant resource on the earth, and high theoretical volumetric density (3832 A h L⁻¹ for Mg anode vs 2062 A h L⁻¹ for Li). Only a few works are related to the highly reversible Mg–air batteries. The fundamental scientific difficulties hindering the rapid development of secondary Mg–air cells are attributed to the poor thermodynamics and kinetics properties mainly owing to the MgO or MgO₂ insulating film as the initial discharge product on air–breathing cathode, contributing to the increase of a large overpotential and a high polarization. Very recently, remarkable progress on rechargeable Mg–air batteries is trying to overcome the major limitations in organic electrolytes via the combination of the first–principle calculation and experimental study. Therefore, this progress report highlights a comprehensive and concise survey of the major progress in the history of secondary Mg–air batteries, and the detailed illustrations of corresponding reaction mechanisms. The overview is devoted to open up a new area for manipulating the nanostructures to control the ideal reaction pathway in novel cell configuration and to fully understand the future Mg–air battery with improved energy density and cycling ability.

更新日期：2017-08-22

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