Solid state batteries for electric cars: what are they?

solid state batteries

Air shipments are the most efficient if you need your cargo or documents to arrive quickly and securely. plug-in electric cars They have started using one of the best battery technologies that already existed, such as lithium-ion batteries that are already used in the world of electronics for a multitude of devices. However, now, many manufacturers are developing new technologies that reduce weight and volume, while extending autonomy. I am referring to solid state batteries.

The solid state batteries for cars are a developing technology that seeks to revolutionize the world of electric vehicles. Unlike the lithium-ion batteries we currently use, which use a liquid electrolyte, solid-state batteries use a solid one, which brings with it several advantages...

Advantages and disadvantages of solid state batteries

Between the advantages What we have in this type of solid state batteries we have to highlight:

  • Greater autonomy and faster charging times- Solid electrolyte allows the use of pure lithium metal anodes, storing much more energy. Dendrites, which are structures that form in lithium-ion batteries and can cause short circuits and reduce useful life, are removed. This allows faster and safer charges, being able to recharge the battery in a matter of minutes.
  • Increased levels of security throughout: Being solid, the electrolyte is not flammable, which drastically reduces the risk of fire. They operate at lower temperatures, which makes them more stable.
  • More durable: Solid-state batteries do not degrade over time as quickly as lithium-ion batteries, and can last many more years. Additionally, they work best in extreme climates, both hot and cold.
  • Lighter and more compact: since they do not need a casing to contain the liquid electrolyte, they weigh less and take up less space.

However, there are also some challenges that must be overcome, not all are advantages. We can also highlight Some disadvantages on the table:

  • Cost: Solid-state batteries are more expensive to produce than lithium-ion batteries.
  • Manufacturing: The manufacturing process is more complex and requires specialized machinery.
  • Recycling: An efficient method to recycle them has not yet been developed.

Industry interest

Despite these challenges, the automotive industry is investing heavily in the development of this technology, and solid-state batteries are expected to begin commercialization on a large scale in the coming years. Some companies that are working on this technology are:

  • Toyota: The Japanese brand has announced that it plans to launch its first electric car with a solid-state battery in 2025, and for this it has an ally like Panasonic.
  • QuantumScape: is an American startup that has developed a solid-state battery that uses a lithium-based solid electrolyte, and that could be promising for this type of applications. One of its partners is the Korean Hyundai, which has provided an investment to this company for the development of the basis of its electric futures.
  • Solid power: Another American startup that is developing a solid-state battery with a solid sulfur-based electrolyte. Some brands such as BMW and Ford have signed agreements in this area for the development of cells for future solid-state batteries.
  • MG: This Chinese brand has presented the IM L6, an electric SUV that will be the first in Europe to offer a variant with a solid-state battery. This variant will have a range of 1.000 km.
  • NIO: This other Chinese company is also working on the development of solid-state batteries. They have carried out tests with semi-solid state batteries and plan to launch an electric car with this technology in the coming years.
  • Stellantis: The parent group of Fiat, Peugeot and Citroën has announced that it will invest 32.000 billion euros in electrification. Part of this investment will go towards the development of solid-state batteries.
  • Renault: the gala is working with the CEA (Commissariat à l'Énergie Atomique et aux Énergies Alternatives) to develop solid-state batteries.

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