Toyota is preparing to take one of the biggest steps yet in its electric vehicle strategy, confirming that it intends to launch a high-performance EV powered by solid-state batteries (SSBs) as early as 2027. If Toyota delivers on this timeline, it could redefine what drivers expect from electric vehicles in terms of range, charging times and long-term battery reliability.

Solid-state batteries have been discussed for years, often described as the future of EV power, but Toyota now looks to be among the closest to bringing the technology to mass production. Unlike conventional lithium-ion batteries, which rely on a liquid electrolyte solid-state units use a solid material. This shift unlocks a battery pack that’s lighter, more compact and capable of holding far more energy in the same physical space.

Toyota has quietly invested in solid-state battery research for almost ten years. The brand now says it expects to begin battery production between 2027 and 2028, with the first vehicles following shortly afterwards.

According to Toyota’s engineering team, its new solid-state chemistry could deliver transformative gains:

• Up to double the power output

• Up to three times the driving range

• Around four times the lifespan of today’s lithium-ion packs
  
  

If achieved, these numbers would place Toyota firmly at the forefront of high-performance electric mobility and make solid-state technology a major contender for luxury and performance-focused models. Unsurprisingly, early rumours suggest that Lexus may be the first to debut the breakthrough.

Beyond performance, Toyota believes solid-state batteries could dramatically reduce the lifetime carbon footprint of an EV. With a longer lifespan and fewer required replacements, these batteries could lower overall resource use and support a more sustainable manufacturing cycle.

While Toyota is evaluating how SSBs might integrate into its existing platforms, the real opportunity lies in all-new EV architectures designed specifically to maximise the benefits of solid-state technology, from cooling requirements to energy density.

What is a Solid-State EV Battery?

A solid-state EV battery replaces the liquid electrolyte found in traditional lithium-ion packs with a solid medium. This single change brings a long list of advantages.

Solid-state batteries are far more stable, which means:

• faster charging

• stronger performance in hot and cold conditions

• significantly reduced degradation over time

Because solid electrolytes store energy more efficiently, these batteries offer much higher energy density, giving drivers more power in a smaller, lighter unit and considerably longer ranges between charges.

They’re also safer, removing the flammable liquid that has historically required extensive safety reinforcement in lithium-ion designs. With fewer precious metals required and a slimmer, lighter profile, solid-state batteries pave the way for lower long-term production costs, improved efficiency and entirely new EV design possibilities.

What are the disadvantages of Solid-State Batteries?

Despite the promise, solid-state technology still faces several key challenges. These batteries continue to rely heavily on lithium, and some early designs may use even more of it, adding pressure to already limited material supplies.

Recycling presents another hurdle. Efficient recycling processes for solid-state packs do not yet exist, and developing them will be essential to prevent further strain on raw materials.

Cost is also a limiting factor. Solid-state batteries remain at an early stage of development, meaning large-scale production will require major investment, specialist facilities and entirely new manufacturing methods. In the short term, that makes SSBs more expensive, with higher costs likely to be passed on to consumers until production scales.

Which other Manufacturers are developing Solid-State batteries?

Toyota isn’t alone in the race. Several global manufacturers are pushing forward with their own solid-state programmes.

• Tesla and Samsung are working on solid-state battery designs, with speculation that the technology could appear in the upcoming Tesla Model C. Tesla is also advancing its 4680 lithium-ion cell, designed to deliver improved cost, efficiency and thermal performance.

• Nissan, Renault and Mitsubishi aim to introduce a solid-state-powered EV by 2029.

• Volkswagen’s PowerCo division is working alongside QuantumScape to accelerate solid-state development.

• Stellantis and Factorial are preparing their FEST solid-state cells, with an impressive 390Wh/kg energy density, for real-world testing in the all-electric Dodge Charger Daytona launching in 2026.