Cost-effective next-generation batteries for long-duration stationary storage (Batt4EU Partnership)
Horizon Europe – Cluster 5 Climate, Energy and Mobility
Funding Amount
Amount not specified
Deadline
02/09/2025
Eligible Organization Types
Non-profit, Private Business, Research Institution, Public Institution
Trusted by
What is the Cost-effective next-generation batteries for long-duration stationary storage (Batt4EU Partnership) Call?
Grant Description
This call supports research and innovation actions to develop novel energy storage materials and battery technologies enabling storage durations from ten hours up to seasonal storage. It addresses the need for low-cost, sustainable, safe and long-lasting energy storage systems with minimal use of critical raw materials, advances in cost efficiency, lifetime, safety and environmental impact, and credible paths to large-scale manufacturing and commercialisation.
Required Results for Successful Funding
Expected Outcomes
Projects are expected to contribute to:
• Advanced battery materials enabling storage durations from 10 hours up to seasonal scales, supporting RePowerEU renewable energy targets.
• Minimized use of Critical Raw Materials in line with the EU Critical Raw Materials Act to enhance EU economic resilience and competitiveness.
• Viable alternatives to current state-of-the-art battery and seasonal storage technologies in terms of cost, efficiency, safety, lifetime and environmental sustainability.
• Improved longevity of energy storage systems with minimal auxiliary service requirements.
• Battery technologies capable of operating across wide State-of-Charge ranges with minimal voltage slippage.
• Advanced battery materials enabling storage durations from 10 hours up to seasonal scales, supporting RePowerEU renewable energy targets.
• Minimized use of Critical Raw Materials in line with the EU Critical Raw Materials Act to enhance EU economic resilience and competitiveness.
• Viable alternatives to current state-of-the-art battery and seasonal storage technologies in terms of cost, efficiency, safety, lifetime and environmental sustainability.
• Improved longevity of energy storage systems with minimal auxiliary service requirements.
• Battery technologies capable of operating across wide State-of-Charge ranges with minimal voltage slippage.
Funded areas
Scope Requirements
Projects must:
• Develop recyclable, low‐environmental‐impact, safe materials for long‐duration (10 h) to seasonal energy storage.
• Demonstrate commercial and technical paths achieving all of:
• System CAPEX < 50 €/kWh;
• Projected lifetime ≥ 20 years with minimized self-discharge under typical ambient and operating conditions;
• Round-trip efficiency ≥ 50 % at AC system level and ≥ 75 % at cell level;
• Long-term, large-scale deployment of reliable materials supply and manufacturing for cells or reaction stacks.
• Focus on battery technologies at low TRLs; exclude commercialised Li-ion, vanadium redox flow, Na-ion (liquid), molten Na–S and other established systems.
• If choosing specific chemistries, address:
• Metal-air: reduce gas impurities sensitivity;
• Multivalent: develop low‐corrosivity, component‐compatible electrolytes;
• Redox flow: redox couples with minimized Critical Raw Materials share;
• Potassium batteries: improve rate performance and electrolyte stability against high K+/K redox.
• Assess safety and sustainability per ‘safe and sustainable by design’ principles.
• Encourage use of computational/AI tools for materials and cell design.
• Source materials, products and equipment predominantly from EU Member States or Horizon Europe associated countries, justifying exceptions.
• Develop recyclable, low‐environmental‐impact, safe materials for long‐duration (10 h) to seasonal energy storage.
• Demonstrate commercial and technical paths achieving all of:
• System CAPEX < 50 €/kWh;
• Projected lifetime ≥ 20 years with minimized self-discharge under typical ambient and operating conditions;
• Round-trip efficiency ≥ 50 % at AC system level and ≥ 75 % at cell level;
• Long-term, large-scale deployment of reliable materials supply and manufacturing for cells or reaction stacks.
• Focus on battery technologies at low TRLs; exclude commercialised Li-ion, vanadium redox flow, Na-ion (liquid), molten Na–S and other established systems.
• If choosing specific chemistries, address:
• Metal-air: reduce gas impurities sensitivity;
• Multivalent: develop low‐corrosivity, component‐compatible electrolytes;
• Redox flow: redox couples with minimized Critical Raw Materials share;
• Potassium batteries: improve rate performance and electrolyte stability against high K+/K redox.
• Assess safety and sustainability per ‘safe and sustainable by design’ principles.
• Encourage use of computational/AI tools for materials and cell design.
• Source materials, products and equipment predominantly from EU Member States or Horizon Europe associated countries, justifying exceptions.
Additional Conditions for Applicants
Special Conditions
- Two‐stage submission: Stage 1 and Stage 2 deadlines on 2 September 2025 and 31 March 2026, Brussels time.
• Lump-sum grant model under Horizon Europe Simplified Cost Decision.
• Admissibility, eligibility, evaluation, financial and operational capacity conditions per Horizon Europe Work Programme General Annexes (Annexes A–G, Part B Application Form, online manual).
• Eligible countries per Annex B; specific non-EU/non-associated provisions apply.
• Use Copernicus and/or Galileo/EGNOS when employing satellite-based EO, positioning or timing data.
• Optional JRC participation; JRC must provide equal information to all applicants.
• Mandatory collaboration with the Coordination and Support Action under HORIZON-CL 5-2025-D 2-02-06.
• Projects must report results to the European Partnership on Batteries (Batt4EU) to support KPI monitoring.
• Procurement strategies must specify place of production; preference for EU/associated supplies.
• Compliance with EU Financial Regulation, MGA templates and detailed Horizon Europe guidance documents.
• Lump-sum grant model under Horizon Europe Simplified Cost Decision.
• Admissibility, eligibility, evaluation, financial and operational capacity conditions per Horizon Europe Work Programme General Annexes (Annexes A–G, Part B Application Form, online manual).
• Eligible countries per Annex B; specific non-EU/non-associated provisions apply.
• Use Copernicus and/or Galileo/EGNOS when employing satellite-based EO, positioning or timing data.
• Optional JRC participation; JRC must provide equal information to all applicants.
• Mandatory collaboration with the Coordination and Support Action under HORIZON-CL 5-2025-D 2-02-06.
• Projects must report results to the European Partnership on Batteries (Batt4EU) to support KPI monitoring.
• Procurement strategies must specify place of production; preference for EU/associated supplies.
• Compliance with EU Financial Regulation, MGA templates and detailed Horizon Europe guidance documents.
Important dates
Open from: 06/05/2025
Deadline:02/09/2025
Application period has ended
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