You cannot get far today with electric cars. One reason is that the batteries require a lot of space.
Potassium ions are just as inexpensive and readily available as sodium, and potassium ion batteries would be superior from the electric aspect.
The goal for many energy storage researchers is to create technologies that have the high energy density of batteries and the high power of capacitors
The research team is particularly excited about what this breakthrough could mean for how batteries are made in the future.
When lithium batteries are charged the first time, they lose anywhere from 5-20% energy in that first cycle.
Dendrites, whiskers of lithium that grow inside batteries and can cause fires like those in the Samsung Galaxy Note 7, are the bane of next-generation lithium batteries.