Mike McDonagh explores room temperature liquid-metal batteries. They use cheap, abundant materials that are readily recyclable.
For the last 50 years or more, the promise of high energy density and low material cost batteries has helped to maintain a keen interest in high and medium temperature molten salt rechargeable electrochemical batteries.
However, as with all peak performance battery chemistries there are numerous practical, physical and chemical issues that conspire against the downtrodden and overburdened material scientists in this industry. Consequently, we have reached the stage where it is recognised that this category of electrochemical battery will not (yet) compete . . .
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