SciTransfer
HELENA · Project

High-Energy Solid-State Batteries for Long-Range Electric Vehicles and Aircraft

transportTestedTRL 5

Imagine a battery that replaces the liquid inside with a solid, salt-like material. This makes the battery much safer and allows it to hold significantly more energy in the same amount of space. It's like upgrading from a standard fuel tank to a high-capacity one that charges faster and lasts longer.

By the numbers
12
Key Exploitation Results
80%
Yttrium recovery rate
40 mAh
Monolayer pouch cell capacity
The business problem

What needed solving

Current lithium-ion batteries lack the energy density and safety required for electric aviation and long-range EVs. There is also a critical need to reduce dependence on Asian battery supply chains.

The solution

What was built

A Generation 4b solid-state battery cell using a halide electrolyte, Ni-rich cathode, and Li-metal anode. This includes 40 mAh pouch cells and a physics-based simulation model.

Audience

Who needs this

Electric aircraft OEMsEV battery manufacturersSpecialized battery recycling firmsHigh-performance energy storage developers
Business applications

Who can put this to work

Aerospace
enterprise
Target: Electric aircraft manufacturer

If you are an electric aircraft manufacturer dealing with limited energy density for flight, this project developed a Generation 4b battery that increases power density. This allows for longer flight ranges and safer operation in the air.

Automotive
any
Target: EV battery pack producer

If you are an EV battery pack producer dealing with slow charging times and short driving ranges, this project developed halide solid electrolytes that enable fast charging. This helps boost the overall driving range for the end consumer.

Waste Management
mid-size
Target: Battery recycling plant

If you are a recycling plant dealing with expensive raw material recovery, this project developed a recovery process achieving over 80% for yttrium. This ensures the economic sustainability of the battery lifecycle.

Frequently asked

Quick answers

How does this technology affect battery production costs?

The project aims to enable low-cost and scalable cell manufacturing to reduce the overall cost of battery devices. Based on available project data, specific price reductions are not quantified.

Is this technology ready for industrial scale?

The project has focused on optimizing extrusion processes and fabricating 40 mAh monolayer pouch cells. It aims to provide a scalable manufacturing process for the market by 2025.

What is the status of the intellectual property and licensing?

The project has identified 12 Key Exploitation Results, including innovations in halide electrolytes, solid-state cells, and protective layers. An IPR strategy is currently being advanced.

What is the expected timeline for market availability?

The objective is to have these differentiating European 4b generation batteries on the market from 2025.

How is the battery integrated into existing vehicle systems?

The project developed testing protocols and physics-based cell-level models specifically for EV and aeronautic use cases to ensure compatibility.

Consortium

Who built it

The consortium is heavily weighted toward industrial application, with 11 industry partners (61% ratio) and 2 SMEs across 8 countries. This strong industrial presence, combined with 5 research centers and 2 universities, indicates a high focus on commercial viability and manufacturing scalability rather than pure academic research.

How to reach the team

Contact CIC Energigune Fundazioa in Spain

Next steps

Talk to the team behind this work.

Contact us to access the 12 Key Exploitation Results for halide batteries.

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