Magnesium liquid flow battery energy storage technology

What are rechargeable magnesium batteries (RMBS)?

Benefiting from higher volumetric capacity, environmental friendliness and metallic dendrite-free magnesium (Mg) anodes, rechargeable magnesium batteries (RMBs) are of great importance to the development of energy storage technology beyond lithium-ion batteries (LIBs).

Why are aqueous magnesium batteries a problem?

By contrast, the issues of self-corrosion and chunk effect are inevitable and, therefore, are major issues hindering the broad utilization of aqueous magnesium batteries. Basically, Mg anode efficiency is below 50% when discharging in a commonly used electrolyte (e.g. 3.5 wt% NaCl solution) under a low current density (e.g. 1 mA cm –2) .

What is a high-temperature Magnesium-antimony (mg||SB) battery?

A high-temperature (700 °C) magnesium–antimony (Mg||Sb) liquid metal battery comprising a negative electrode of Mg, a molten salt electrolyte (MgCl 2 –KCl–NaCl), and a positive electrode of Sb is proposed and characterized. Because of the immiscibility of the contiguous salt and metal phases, they stratify by density into three distinct layers.

Can aqueous MG batteries be used for implantable bioelectronics?

Additionally, aqueous Mg batteries recently displayed great potential to be employed as power supply devices for implantable bioelectronics due to the good biocompatibility of Mg with the human body , , , .

Can machine learning improve aqueous MG batteries?

Moreover, emerging computational approaches and especially machine learning models that can potentially be adopted for advancing aqueous Mg batteries with less experimental effort (e.g. by providing a short list of potentially effective electrolyte additives) are introduced.

Do aqueous MG batteries have a performance booster capacity?

The Mg-air full cell with 0.1 m citrate as additive displayed remarkably boosted cell voltage (from 1.54 V to 1.63 V) and energy density (from 2200 Wh kg –1 to 3000 Wh kg –1 based on anode mass) at current density of 1 mA cm –2. This work demonstrates that Mg 2+ complexing agents possess performance booster capacity for aqueous Mg batteries.