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Storing megawatts: Liquid-metal batteries and electricity

Making aluminum requires a lot of electricity. That’s because the metal bonds tightly to oxygen and it takes a lot of energy to break that bond. In essence, the process of making aluminum is a giant battery with the silvery metal being reduced to purity at the cathode while oxygen bonds with the carbon anode [...]

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Stanford Researchers Unveil New Ultrafast Charging Aluminum-Ion Battery

This schematic shows how the aluminum-ion battery shuttles AlCl4- ions from its graphite cathode to its aluminum anode in order to produce a discharge current (Source: Lin et al., 2015)

Last week, Stanford University researchers unveiled a new aluminum-ion battery chemistry with the unique ability to charge or discharge in less than a minute. The battery’s incredibly fast charging and discharging times are not its only breakthrough. It is also the first aluminum-based battery to achieve an operating voltage sufficient for common applications and last [...]

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