solid-state batteries are the future for battery technology in consumer electronics and electric vehicles. In SOLID state batteries, The electrolyte used is in solid form.

Compared to liquid electrolyte batteries, Solid state battery
energy density is high. Solid-state batteries can pack in twice as much energy as Li-ion. Solid state batteries can charge 6 times faster than liquid state batteries.

life span - Solid State batteries can be last up to 10 years. Solid state batteries won't explode or catch fire if they are damaged or suffer from manufacturing defects.

LiPON batteries could last anywhere from 40 to 130 times longer than Li-ion batteries.

Recently, Dyson entered into Solid State Battery electric car manufacturing.
https://electricvehicles.in/