Solid-state batteries offer a few advantages over the lithium-ion batteries largely in use today including greater energy density and, therefore, increased driving range when used in EVs, less chance of fire or explosion and rapid recharging. The benefits of solid-state batteries are why so many companies, including Fisker, Toyota and Google, are looking to develop the technology and ultimately incorporate them into their products.

Batteries that limit EVs' driving ranges will certainly keep these types of vehicles from becoming mainstream. So technology that can stretch those driving distances and make EVs as convenient as traditional gas-powered cars will be a must when it comes to expanding their use and, therefore, the environmental benefits they afford.