Tiamat

What Tiamat does

Tiamat is a French deep-technology company founded in 2017 as a spin-off of the Centre National de la Recherche Scientifique (CNRS), built on nearly a decade of academic sodium-ion battery research conducted within the RS2E network. The company designs, develops, industrializes, and sells sodium-ion battery cells for power and high-power applications — a segment it identifies as underserved by mainstream lithium-ion technology. Its chemistry is based on hard carbon anodes and Prussian blue analogue cathodes, eliminating dependence on lithium, cobalt, nickel, and graphite. This positions the technology to address both projected lithium extraction and refining capacity shortfalls by 2030 and the geostrategic supply chain risks of conventional lithium-ion batteries. Tiamat holds an exclusive worldwide license to the CNRS sodium-ion patent portfolio, dynamically updated as new academic filings emerge.\n\nThe product portfolio consists of two cell formats: high-performance cylindrical sodium-ion cells targeting power tools and small electromechanical systems, and high-power, long-life prismatic sodium-ion cells targeting automotive and stationary storage applications. Differentiated performance characteristics include high power density, long lifetime, extreme safety, and ultra-fast charge capability. In 2023, Tiamat became the first company globally to commercialize a sodium-ion battery cell in a consumer product, recording its first significant commercial orders in the power tools (électroportatif) and stationary storage sectors. The company is currently preparing to build Europe's first sodium-ion gigafactory in Boves (ZAC Jules Verne 2, near Amiens), with planned 5 GWh production capacity by end of 2030 and production targeted to begin around 2027.\n\nTiamat operates a direct B2B enterprise sales model with no public pricing; revenue is generated through hardware sales of cells and packs on a quote/project basis to automotive OEMs (e.g., Stellantis), Tier 1 suppliers, industrial equipment manufacturers, data center operators, and railway/mobility companies. The company is anchored by strategic industrial shareholders — Stellantis Ventures, Arkema, MBDA, and most recently Endeavour Inspired Infrastructure (joined June 2025) — with the Endeavour partnership specifically targeting AI data center and power grid applications. Tiamat is supported by the French Tech 2030 program and has completed three disclosed fundraising rounds, with operations scaled to approximately 30 employees as of 2025 across R&D, industrialization, production, supply chain, and commercial functions.

Name

Tiamat

Legal name

TIAMAT SAS

Website

https://tiamat-energy.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

Tiamat is a French CNRS spin-off founded in 2017 that designs, develops, and sells sodium-ion battery cells (cylindrical and prismatic formats) for power tools, automotive, stationary storage, and AI data center applications, and is building Europe's first sodium-ion gigafactory with planned 5 GWh capacity by 2030.

Ownership category

akta.pro rank

Product category

Battery Cells

NAICS

Battery Manufacturing (33591), Battery Manufacturing (335910)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Cell Manufacturing (Cylindrical, Prismatic, Pouch) (EUAFABAG)

akta.pro secondary industries

Battery Cells (Li-ion, LFP, Sodium-ion, Lead-acid, NiMH) (IMAGAHAA), Battery Pack Manufacturing & Module Assembly (EUAFABAI)

Keywords

• Sodium-ion batteries
• Energy storage cells
• Battery cell manufacturing
• Power tool batteries
• Stationary energy storage

Headquarters

HQ city

Amiens

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Infrastructure, Supply Chain, Operations, Marketing or Sales

Revenue model

1. Sodium-Ion Battery Cell Sales: Tiamat designs, develops, industrializes, and sells sodium-ion battery cells and packs for power and high-power applications. Revenue is generated through the sale of battery cells (cylindrical and prismatic formats) and potentially battery packs/modules to customers in mobility, industrial, and stationary storage sectors. The company recorded its first commercial orders in power tools and stationary storage sectors as of 2023, marking the transition from R&D to commercial revenue generation.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Tiamat designs, develops, industrializes, and sells sodium-ion battery cells in cylindrical and prismatic formats for power and high-power applications. The company targets mobility (hybrid vehicles, fast-charge and hydrogen buses, aircraft APS, railway storage), industrial (data center UPS, fast charger buffers, telecom UPS, power tools), and stationary energy storage sectors. The technology eliminates dependency on lithium, cobalt, nickel, and graphite while delivering high power density, long lifetime, extreme safety, and fast charge capability.

Product overview

Tiamat designs, develops, industrializes and sells sodium-ion batteries for power and high power applications. The product portfolio consists of two main cell formats: Cylindrical Cells for power tools and small electromechanical systems, and Prismatic Cells for automotive and stationary applications. The company targets mobility markets (hybrid vehicles, fast charge and hydrogen buses, aircraft APS, railway storage), industrial markets (UPS for data centers, fast charger buffers, power tools, telecom systems), and stationary energy storage. TiamAT's sodium-ion technology eliminates dependence on critical materials like lithium and cobalt while offering high power density, long lifetime, extreme safety, and fast charge capabilities.

Differentiator

Problem solved

Functional benefit

Products and services

• Cylindrical Sodium-Ion Cells High performance cylindrical sodium-ion battery cells designed for power tools and small electromechanical systems, delivering high power output and fast charge capability.
• Prismatic Sodium-Ion Cells High power and long life sodium-ion prismatic cells designed for automotive and stationary energy storage applications, including UPS, data centers, fast charger buffers, and railway storage.

Quantifiable outcome

• First company to commercialize a sodium-ion battery cell in a consumer product (2023)
• +2 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Three partnerships are on record, tiered core.

• Endeavour Inspired InfrastructurecoreStrategic or Co-development Partner · 17 June 2025Endeavour Inspired Infrastructure completed its third round of fundraising with Tiamat and announced a global strategic partnership to deliver high-speed energy storage for AI data centers and power grids using Tiamat battery technology. This collaboration supports global scaling of Tiamat's technology on the power batteries market and specifically focuses on ultra-fast charging applications for AI infrastructure.
• CNRS InnovationcoreTechnology or Integration · 1 January 2023CNRS Innovation managed the collection of all patents from CNRS's sodium-ion battery research program and granted Tiamat an exclusive and worldwide license. As a co-founder and IP licensor, CNRS Innovation plays a foundational role in Tiamat's technology development.
• CNRS (Centre National de la Recherche Scientifique)coreTechnology or Integration · 1 January 2017Tiamat is a CNRS spin-off founded in 2017 based on nearly 10 years of academic research conducted by CNRS and University research units working together within the RS2E. CNRS Innovation granted Tiamat an exclusive and worldwide license to exploit the patent portfolio resulting from this research. The license is dynamic, with new patents integrated as research continues. Key researchers include Prof. JM Tarascon, Prof. C. Masquelier, Prof. P. Simon, Dr. M. Morcrette, and Dr. L. Croguennec.

Scale indicators8 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• Altris: Swedish sodium-ion battery cell developer using Prussian blue analogue cathodes and hard carbon anodes — the same core chemistry platform as Tiamat. Altris is the closest direct peer in Europe targeting similar cell formats and stationary/mobility applications.
• Natron Energy: US-based sodium-ion battery company using Prussian blue analogue chemistry, focused on stationary storage, data center UPS, and fast-charging applications. Directly comparable to Tiamat on chemistry, target segments (UPS, EV fast charge), and commercialization stage.
• Faradion: UK-based sodium-ion battery developer (acquired by Reliance Industries) working on layered oxide cathode chemistry. Targets mobility and stationary storage applications comparable to Tiamat's product roadmap, now backed by a large industrial parent.
• HiNa Battery: Chinese sodium-ion battery company (spun off from the Chinese Academy of Sciences) that was the first in China to commercialize sodium-ion cells for electric two-wheelers and stationary storage. Comparable as an early-stage sodium-ion peer with similar form factors and end markets.

Emerging players

• Northvolt: Swedish battery manufacturer building European gigafactories (primarily Li-ion) but actively researching sodium-ion chemistries. Comparable as a European battery scale-up with similar end-market ambition, though currently differentiated by its Li-ion focus and recent financial restructuring.
• Verkor: French battery cell manufacturer building a gigafactory in Dunkirk with backing from Renault, among others. Comparable to Tiamat as a European battery scale-up pursuing automotive and stationary customers under French/EU industrial policy support, though focused on Li-ion.
• ACC (Automotive Cells Company): European battery joint venture (Stellantis, TotalEnergies, Mercedes-Benz) building gigafactories in France and Germany. Comparable as a European battery scale-up competing for the same automotive OEM customers as Tiamat, particularly Stellantis.

Broad incumbents

• CATL (Contemporary Amperex Technology): World's largest battery manufacturer and a leader in sodium-ion commercialization, having launched sodium-ion cells for automotive and stationary applications. A broad incumbent that dwarfs Tiamat on scale, capex, and customer base but competes in the same sodium-ion category.
• BYD: Vertically integrated Chinese battery and EV manufacturer that has launched sodium-ion battery products and is building dedicated sodium-ion production capacity. Comparable as a broad incumbent with deep automotive customer relationships and aggressive sodium-ion commercialization.
• Reliance New Energy (Reliance Industries): Indian conglomerate that acquired Faradion and is building a fully integrated sodium-ion battery value chain. Comparable as a strategic investor/operator pursuing sodium-ion scale-up in mobility and stationary applications across multiple geographies.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/tiamatenergy

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Funding overview

Funding rounds4 records

Investors6 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tiamat