BattBelt

battbelt.es ↗ ·Arrasate-Mondragón ·Pre-seed

BattBelt is a Basque deep-tech startup, spun off in 2023 from the IKERLAN technology center near Arrasate-Mondragon, that develops a mechanical compression system built on smart/superelastic materials to manage internal pressure in lithium-ion battery cells during charge-discharge cycles and fast charging. Its BATTBELT technology targets extending battery lifespan by up to 50% for EV and maritime decarbonization applications without changing cell chemistry, energy density, or cost. The company closed a €630,000 round with BeAble Capital in late 2025 and won a 2026 MUBIL Mobility Award alongside Italian battery startup Novac.

Founded

2023

Founders

Total funds raised

€630K

SectorsEnergy storage, Battery technology, Electric mobility, Climate tech Start-up MapEnergy & Climate › Batteries & EV charging

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Founders

Javier Zurbitu Gonzalez

CEO

Global models 5

QuantumScape

United States · www.quantumscape.com ↗

Deep-tech battery company whose solid-state cell design aims to dramatically extend EV battery lifespan and performance, the same 'engineer the battery to last longer' value proposition as BattBelt.

$1.5BComparable

Sila Nanotechnologies

United States · www.silanano.com ↗

Develops next-gen silicon anode materials that improve battery energy density and cycle life, matching BattBelt's materials-based approach to extending battery lifespan.

$1.31BComparable

Group14 Technologies

United States · group14.technology ↗

Silicon-carbon anode material maker aiming to boost battery capacity and longevity, the same battery-performance-improvement model as BattBelt.

$1.16BComparable

StoreDot

Israel · www.store-dot.com ↗

Extreme fast-charging battery technology that reduces degradation from rapid charging, directly paralleling BattBelt's focus on managing stress from fast-charge cycles.

$260MComparable

TWAICE

Germany · www.twaice.com ↗

Battery analytics and management software that predicts and extends battery lifespan, the closest software-based comparable to BattBelt's hardware lifespan-extension pitch.

$90MComparable

In the same niche 27 others

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Notes: Most funded first

Investors 1

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BeAble Capital

beablecapital.com

Led Pre-seed 2025 Spain

Funding rounds 1

Date	Round	Amount	Lead
2025-12-03	Pre-seed	€630K	BeAble Capital

News 3

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Published	Article
2025-12-03	BattBelt closes €630,000 funding round with BeAble Capital to extend the lifespan of electric batteries ↗ Capital-Riesgo.es (EN) 2025-12-03
2024-10-25	Their Revolutionary Battery Innovations Propel Italian Novac and Gipuzkoan Battbelt to Victory in the MUBIL Mobility Awards ↗ Irekia (Basque Government) 2024-10-25
2023-12-19	IKERLAN and BEABLE CAPITAL create BATTBELT to revolutionise the energy storage sector thanks to smart materials ↗ IKERLAN 2023-12-19