Basquevolt, founded in 2022 in Spain’s Basque Country, has introduced its BQV400L lithium-metal battery cell, now available for immediate order. The cell combines a nickel-manganese-cobalt (NMC) cathode, a lithium-metal anode, and a proprietary hybrid polymer electrolyte. While it does not strictly qualify as a solid-state design, the hybrid electrolyte is presented as an intermediate step toward fully solid-state architectures.
According to company data, the BQV400L delivers a gravimetric energy density of 402 Wh/kg and offers a nominal capacity of 27 Ah. Its pulse power rating of 8.9 C indicates robust performance under high-current demands. Manufactured in Spain with approximately 75% European components, the cell represents Basquevolt’s fourth generation of lithium-metal technology and its first commercially mature product. An independent testing laboratory is currently validating the performance figures.
Basquevolt emphasizes the BQV400L’s “drop-in” compatibility with existing gigafactory lines, suggesting that adoption will require minimal modification to current manufacturing setups. The company positions this approach as a means to accelerate industrial deployment and to reduce capital and operational barriers for energy storage producers.
Collaboration efforts are underway with several original equipment manufacturers across automotive, aerospace, and aviation sectors. In February, Basquevolt announced a development partnership with Ampere, a Renault subsidiary. This alliance focuses on early sample validation and paves the way for pre-A prototype cells aimed at future electric vehicles. Renault highlighted the technology’s potential to yield more compact, lightweight battery packs with enhanced thermal stability and fast-charging capability, as well as significant reductions in capital investment and energy consumption per kilowatt-hour produced.
In parallel, Basquevolt has launched a joint testing initiative with EDF and a leading OEM to assess the safety and performance of lithium-metal NMC cells exceeding 400 Wh/kg. These steps reflect growing industrial interest in next-generation battery solutions and underscore Basquevolt’s commitment to advancing its solid-state roadmap toward full industrialization.
Source: Electrive
