Solid-state batteries are still quite far from reaching the market

In recent years, solid-state batteries have received a lot of attention from the media and the technology industry. They are being presented as the next big revolution in energy storage, with promises of higher capacity, longer lifespan and faster charging times. However, despite the enthusiasm they generate, it is important to maintain a realistic perspective on their development and potential.

Unlike traditional lithium-ion batteries, which use a liquid electrolyte, solid-state batteries use a solid electrolyte. This change allows for greater energy density, meaning they can store more energy in the same space. Additionally, solid-state batteries are safer, eliminating the risk of leaks or fires, and recharge in less time.

And that’s where the enthusiasm in many publications comes from, as solid-state batteries have the potential to transform a wide range of industries, from electric vehicles to portable electronic devices. If the promises are kept, they could enable electric vehicles with longer ranges, smartphones that last several days on a single charge, and other more efficient and long-lasting electronic devices.

But it will happen in a possible future, since the present of these batteries is still far from being a commercial reality. Their manufacturing and characteristics must be widely validated before they can be produced on a large scale. When they enter manufacturing, a multitude of technical problems will appear that must be addressed, and that will take years to resolve.

The current challenges of solid-state batteries can be summarized in four: their operation (performance), their cost, their durability (life), and the environmental impact.

Its functioning and operability must be tested for a long time and in various extreme conditions, so that the manufacturer offering the car can guarantee its product.

The same happens with the cost. Currently these batteries are more expensive, and production processes will have to be greatly improved so that their prices are lower than those of current batteries.

The same goes for battery life. It must be reliably verified that its charge and discharge cycles in all conditions comply with the manufacturers’ guarantees.

And finally, although equally important, the environmental impact generated by its manufacturing and recycling is acceptable and sustainable.

I have worked for many years in manufacturing, and I know first-hand the difficulties of putting a product into serial production, and guaranteeing product specifications.

Solid-state batteries will likely begin to hit the market in the coming years, initially in niche applications where high energy density and safety are crucial. As the technology matures and costs reduce, they could become the dominant technology for energy storage in a wide range of devices.

In short, solid-state batteries have enormous potential to revolutionize energy storage. However, it is important to be realistic about its development and not get carried away by the “hype” of the news. There are still many challenges to overcome before solid-state batteries become widely available. However, the progress of research and investment in this technology is promising and predicts a bright future for the storage of this type of energy.

I hope that we will have these batteries on the market as soon as possible, but I think it will still take around 5 years. I hope I’m wrong and they end up achieving it sooner.