tells us solid-state batteries are smaller and more stable than their lithium-ion counterparts. They also don’t contain a flammable liquid electrolyte, instead opting for a solid electrolyte. Lithium-ion batteries are known to be unstable in extreme temperatures and can catch fire or explode when damaged.

In addition to being relatively safer, solid-state batteries also last longer and recharge faster. Lithium-ion batteries start to lose capacity after about 1,000 charge cycles, while solid-state batteries will still retain 90% of their capacity after 5,000 charge cycles.

They’re also lighter than lithium-ion batteries with twice the energy density, meaning new electric vehicles with solid-state batteries could use fewer battery cells to deliver the same range as their lithium-ion predecessors.

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Bringing costs down is key

Until now, the primary reason why solid-state batteries haven’t truly taken off for anything larger than smart watches or pacemakers is the cost of developing and manufacturing them.

Nissan is the latest automaker to announce its intention to invest in solid-state battery technology, following the likes of BMW, Hyundai and

Volkswagen

. Increased investment is the first step in bringing down the cost barriers that have kept many companies from utilizing the tech.

As CNET reports, Nissan is hoping to bring the cost of batteries down to $75 per kilowatt-hour by 2028, with future development hitting $65 per kilowatt-hour. For reference, the current industry average sits at $132 per kilowatt-hour.

How it (might) help the consumer

Making better batteries more affordable can make electric vehicles themselves more affordable to a new demographic of buyers—one that’s currently priced out of the market. As it stands, “affordable” electric vehicles rarely dip below the $30,000 threshold with a few notable exceptions (hat tip to the Nissan Leaf EV).

It’s yet to be seen, however, if automakers will prioritize a truly affordable electric car for the masses, even with reduced battery costs. The current trend in the automotive industry is toward higher average transaction prices; with the cost of the average

new vehicle

hitting more than $46,000, it’s uncertain if consumers would see any meaningful savings for a new EV, or if automakers would simply absorb the savings to pad their profits.

MORE: Nissan Leafs Have More Female Drivers Than Other EVs

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