Toyota’s advanced battery technology roadmap

  • Three new liquid electrolyte battery technologies to deliver higher power, longer range, faster charging and lower cost
  • Solid-state breakthrough shifts development focus to mass production
  • Battery height reduction technology key to driving range improvements

Brussels, 14 September 2023 – At the recent launch of its BEV Factory Toyota Motor Corporation (Toyota) revealed that its next-generation BEVs (battery electric vehicles) will start production in 2026.

Toyota plans to offer advanced specification BEVs that are loved as driving machines.

Not only will they be designed and built differently, they will also be powered by a range of new advanced batteries developed specifically to exceed Toyota customers’ diverse needs and expectations.

During a recent technical workshop under the theme of “Let’s Change the Future of Cars”, Toyota communicated a first insight into its next-generation BEV breakthrough technologies, including a preview of its advanced battery technology rollout plan.

Takero Kato, president of Toyota’s BEV Factory, indicated that the next-generation BEVs will first hit the market in 2026 and that 1.7m of the 3.5m BEVs Toyota expects to sell by 2030 will be these next-generation models. He also highlighted that a range of battery technologies will be key to appealing BEVs to a wider range of customers and their needs.

We will need various options for batteries, just like we have different variations of engines. It is important to offer battery solutions compatible with a variety of models and customer needs

Takero Kato, President, BEV Factory

Toyota has unveiled four next generation batteries including state-of-the-art advances with both liquid and solid electrolytes, and gave a preview of two further steps with solid electrolyte battery technology.

Improved performance from liquid electrolyte batteries

Batteries with liquid electrolytes, which are currently the mainstream technology for BEVs, are being further developed by Toyota to deliver improved energy density, cost competitiveness and charging speeds.

There are three main technologies under development for liquid electrolyte batteries – ‘Performance’, ‘Popularised’ and ‘High Performance’

1.    Performance [Lithium-Ion]

Intended to be introduced with the next-generation BEVs to be introduced in 2026, the Performance Li-Ion battery will increase the cruising range of BEVs to over 800km when combined with improved aerodynamics and reduced vehicle weight.

  • 20% reduction in cost (compared to current bZ4X BEV)
  • Rapid recharging time of 20 minutes or less (SOC*1 = 10-80%)
  • Timing: expected 2026

*1 SOC – State of Charge


2.   Popularisation [Lithium Iron Phosphate]

Toyota is developing high-quality, lower-cost batteries to support the wider appeal of BEVs by providing customers with a variety of battery options – similar to the choice they have today with different powertrains.

The Popularisation battery is constructed using the bipolar technology that Toyota pioneered and confirmed with its NiMh hybrid electric vehicle batteries, combined with inexpensive lithium iron phosphate (LiFePO) as the core material.

The Popularisation battery is expected to offer:

  • 20% increase in cruising range (compared to current bZ4X)
  • 40% reduction in cost (compared to current bZ4X)
  • Fast recharging time of 30 minutes or less (SOC*1= 10-80%)
  • Timing: expected 2026-27


Figure: Monopolar vs. Bipolar structure










3.    High-Performance [Lithium-Ion]

Toyota is also developing a High-Performance battery that combines the bipolar structure with Li-Ion chemistry and a high nickel cathode to achieve further advances and further increase cruising range capability to over 1000km when combined with improved aerodynamics and reduced vehicle weight.

The High-Performance battery is also expected to offer:

  • Further 10% reduction in cost compared to the Performance battery
  • Rapid charging time of 20 minutes or less (SOC*1 = 10-80%)
  • Timing: expected 2027-28

Breakthrough with Solid-State Batteries [Lithium-Ion]

Long seen as a potential game-changer for BEVs, Toyota has made a technological breakthrough in its quest to improve the durability of Li-Ion solid-state batteries.

Toyota solid-state batteries have a solid electrolyte, allowing for faster movement of ions and a greater tolerance of high voltages and temperatures.

These qualities make solid-state batteries suitable for rapid charging & discharging and delivering more power in a smaller form.

The trade-off, until now, has been an expected shorter battery life. However, recent technological advancements by Toyota have overcome this challenge and the company has switched its focus to putting solid-state batteries into mass production.

The aim is to be ready for commercial use by 2027-28.

And, while solid-state was initially slated for introduction on HEVs, Toyota’s focus is now primarily on next-generation BEVs. 

Toyota’s first solid-state battery is expected to offer:

  •  20% increase in cruising range vs. the Performance battery (approx. 1000 km)
  •  Fast charge time of 10 minutes or less (SOC*1 = 10-80%)

Further Solid-State Development Activity

Toyota already has a higher specification Li-Ion solid-state battery under development which is targeting a 50% improvement in cruising range compared to the Performance battery.

Optimising Battery Height to Improve Range

Aerodynamics play a key role in determining the range of all vehicles.

Naturally, in the quest to maximise the range of BEVs there is an increasing focus on reducing or optimising Cd (drag coefficient) ratings.

Toyota’s consideration goes one step beyond by focusing on CdA (Cd multiplied by A, frontal area) which, because of the multiplication effect of frontal area, has a much bigger bearing on a vehicle’s range capability.

Central to Toyota’s thinking is the height of the battery, which is typically packaged under the vehicle’s floor. This can lead to an overall increase in vehicle height, which then has a disproportionate multiplied effect on CdA and consequently on vehicle range performance.

If the height of the battery can be reduced then it follows that the overall height of the vehicle can be reduced, CdA can be improved and overall range can be increased.

Therefore, Toyota is also developing ever-flatter battery technology.

Today the battery pack of the bZ4X, including casing, is around 150mm high. Tomorrow, Toyota plans to reduce the battery height to 120mm, and even 100mm in the case of high-performance sports vehicles where a low hip-position is also desirable.

These battery height advancements can have positive impacts on range, driving engagement and packaging depending on how they are deployed in the vehicle.

Note to editors:

Toyota Motor Europe NV/SA (TME) oversees the wholesale sales and marketing of Toyota, GR (Gazoo Racing) and Lexus vehicles and parts and accessories, as well as Toyota’s European manufacturing and engineering operations. Toyota directly employs over 25,000 people and has invested over EUR 11 billion in Europe since 1990. Its eight European manufacturing plants are located in Portugal, the UK, France, Poland, Czech Republic and Turkey. Today, there are approximately 16.5 million Toyota, GR and Lexus vehicles on European roads, whose drivers are supported by a network of 28 National Marketing and Sales Companies and around 2,800 retail sales outlets in 53 countries (EU, UK, EFTA countries + Russia, Israel, Turkey and other Eastern European countries). In 2022, TME sold 1,080,975 vehicles in Europe for a 6.4% market share. For more information, visit Facts & Figures (toyota.eu) and www.toyota-europe.com.

Toyota believes that when people are free to move, anything is possible. In the pursuit of "Mobility for All", Toyota aims to create safer, more connected, inclusive and sustainable mobility to achieve its mission of producing “Happiness for All”. In Europe, TME launched the KINTO mobility brand which offers a range of mobility services in 14 countries, and is growing its business-to-business sales of zero-emission fuel cell products and engineering support. Contributing to the UN Sustainable Development Goals, Toyota is working to achieve carbon neutrality in its entire business across Europe. A historic leader in CO2 reduction in Europe, TME aims to achieve 100% CO2 reduction in all new vehicles in Western Europe by 2035 and will continue to offer a full range of electrified powertrains to customers across the region with its hybrid, plug-in hybrid, battery and fuel cell electric vehicles.