Solid state batteries

 A very interesting (as ever) and informative video from Just Have A Think, this time about solid-state batteries.  

Solid-state batteries will charge 6 times faster, will have 3 times the energy density, will weigh less and be safer than standard lithium-ion batteries which have a liquid electrolyte.  The only problem is that producing large solid-state batteries has proved difficult.  But it looks as if, finally, large solid-state batteries might become available, with Marata and Toyota both starting mass production of these batteries later this year.