Eco-friendly aluminum batteries might power solar and wind farms

Aluminum batteries still aren’t available outside of labs, and you shouldn’t expect this breakthrough to be available any time soon. They’re still half as energy-dense as lithium-ion cells, and the scientists are busy working on more effective electrolytes and charging systems. If aluminum does reach parity with lithium, however, it could lead to a sea change where renewable energy and electric cars run on more readily available and recyclable materials.