With 402 Wh/kg energy density and European manufacturing, the BQV400L sets a new standard for what a commercially available battery cell can deliver in Europe. The launch marks BASQUEVOLT’s transition from deep-tech development to industrial deployment, and a new phase of ambition for European energy storage.
- 27 Ah | 402 Wh/kg | NMC Li-Metal | 8.9C pulse power
- Manufactured in Spain; 75% of components made in Europe
- Expected safety certification HL3
- Available now
BASQUEVOLT, a European technology leader specializing in next-generation battery technology, today announced the launch of the BQV400L — its first standardized battery cell product, and an important milestone in the company’s journey from technology development to commercial deployment.
The BQV400L delivers 402 Wh/kg gravimetric energy density, 27 Ah capacity, NMC lithium-metal chemistry and 8.9C pulse power capability, positioning it among the most capable available cells manufactured in Europe. Produced in Spain with 75% of its components sourced within Europe, the BQV400L has achieved a safety certification of HL3 and is available to customers now. These safety and performance results are currently being independently validated by a third-party battery testing laboratory.
The BQV400L is the first standardized cell to incorporate BASQUEVOLT’s proprietary polymer electrolyte, engineered to support a wide range of advanced industrial applications. It builds on the company’s ongoing collaborations with automotive, aerospace and other OEMs, as BASQUEVOLT continues to advance its solid-state battery technology toward industrialization. Conceived as a drop-in solution, this technology is designed to be fully compatible with existing cell gigafactory infrastructure, requiring no significant additional manufacturing investment — making it one of the most industrially scalable paths to next-generation batteries.
The implications of this launch extend beyond BASQUEVOLT itself. For European industry, the BQV400L demonstrates that the continent can produce battery cells competitive with the best available globally, while offering the traceability, safety standards and supply chain proximity of local manufacturing. For sectors such as automotive, aerospace and stationary energy storage, that means access to a high-performance cell free from the geopolitical and logistical vulnerabilities of long-distance supply chains. In short, the BQV400L shows that the future of energy storage can be built here.
“Reaching over 400 Wh/kg in a commercially available, European-made cell is something we have worked toward for a long time — and it feels significant to finally be here. What drives us now is the knowledge that this is not our ceiling. The technology roadmap ahead of us is the most compelling it has ever been, and the partnerships we are building give us real confidence in the path forward.”
Nicolò Campagnol, Chief Programme Officer
This announcement follows the recently signed Joint Development Agreement with Ampere, the EV and software player from Renault Group, to accelerate the development and validation of lithium metal-based batteries for future electric vehicles. Together, Ampere and BASQUEVOLT are working to validate performance under real-world automotive conditions — a collaboration that underscores the commercial and industrial confidence being placed in BASQUEVOLT’s technology. This momentum is further reinforced by a joint initiative with EDF, which conducted safety and performance tests on lithium metal NMC cells exceeding 400 Wh/kg alongside a leading OEM — reflecting the shared interest of major industrial organizations in advancing next-generation battery solutions.
BQV400L represents a significant milestone for BASQUEVOLT, but it is not the destination. The company is committed to continuing to push the boundaries of cell performance in terms of energy density, safety and manufacturability, as its solid-state technology matures toward full industrialization.
This launch reflects years of rigorous development by BASQUEVOLT’s team and the sustained support of a broad ecosystem of public and private partners, including Iberdrola, Enagás, CIE Automotive, Innoenergy, CIC Energigune, the Basque Government, CDTI Innvierte, Axon Partners Group, Fundación Bancaria Vital and Stellum Capital.

Source: https://basquevolt.com/en/news/news/BASQUEVOLT_Launches_BQV400L






