What Cuberg does

Cuberg is an advanced battery systems company headquartered at 2020 Williams St., Building E, San Leandro, California. Founded in 2015 by Richard Wang out of a Stanford PhD program and operating since 2021 as a fully owned subsidiary of Sweden-based Northvolt, the company develops lithium-metal battery technology for high-performance electric mobility applications. Its core technology combines a pure lithium metal anode with a proprietary liquid electrolyte, enabling cells that have been externally validated by Element to deliver 395 Wh/kg specific energy at the cell level — roughly 50-70% above conventional graphite-anode lithium-ion cells — and a first-generation lithium-metal module validated by TÜV SÜD at 284.8 Wh/kg with 692 cycles to 90% capacity retention.

The product portfolio spans 5 Ah and 20 Ah pouch cells, vertically integrated modular battery systems, and a complete aviation-grade module packaging 60 of the 20 Ah cells into a flight-rated pack. Customers are enterprise OEMs across electric aviation (eVTOL, eCTOL including 9-30 passenger regional hybrid platforms), high-performance automotive (hypercars, motorsports), motorcycles and e-bikes, UAVs/drones, and marine applications. The company maintains an enterprise direct-sales motion, qualifies customers through multi-year technical validation cycles, and is pursuing FAA Technical Standard Order Authorization (TSOA) and EASA compliance for aviation certification.

The business model is hardware sales of cells, modules and battery systems to OEMs, with custom design-in support and joint product development — most visibly the September 2023 industrial, technical and commercial cooperation agreement with Safran Electrical & Power for aviation propulsion. Revenue is not publicly disclosed; commercial activity is currently constrained by an approximately 10 MWh/year pilot manufacturing line in San Leandro, supporting about 40 air-taxi equivalents annually for qualification and flight test programs, with parent Northvolt providing gigascale manufacturing, capital (~$13B raised at the parent level) and global supply chain access for future scaling.

Name

Cuberg

Legal name

Cuberg, Inc.

Website

https://cuberg.net

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

101–250 employees

Short description

Cuberg is a San Leandro-based advanced battery systems company and Northvolt subsidiary that develops and supplies lithium-metal cells, modules and packs to enterprise OEMs in electric aviation (eVTOL, eCTOL), high-performance automotive, drones, and electric motorcycles.

Ownership category

akta.pro rank

Product category

Advanced Battery Systems

NAICS

Battery Manufacturing (33591)

SIC

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

akta.pro primary industry

Battery Cells (Li-ion, LFP, Sodium-ion, Lead-acid, NiMH) (IMAGAHAA)

akta.pro secondary industries

Battery Pack Manufacturing & Module Assembly (EUAFABAI), Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB)

Keywords

• Lithium metal batteries
• Battery cells manufacturing
• Electric aviation batteries
• Energy storage systems
• Advanced battery technology

Headquarters

HQ city

Emeryville

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Battery Cells and Modules: Sale of high-performance lithium metal battery cells and modules to aviation, automotive, and other electric mobility manufacturers. Cuberg designs, develops, and produces battery products for customer vehicle integration.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Cuberg develops and manufactures next-generation lithium-metal battery cells, modules, and complete battery systems based on a pure lithium-metal anode and proprietary liquid electrolyte. Products are sold to aviation OEMs (eVTOL/eCTOL), high-performance automotive manufacturers, UAV/drone makers, and other electric mobility customers. The technology is designed to be compatible with existing lithium-ion manufacturing lines, enabling faster industrialization at gigafactory scale under parent company Northvolt.

Product overview

Cuberg offers a unified portfolio of next-generation lithium-metal battery products centered around its proprietary lithium metal anode technology with liquid electrolyte. The product line spans from individual high-performance cells (5 Ah and 20 Ah pouch cells achieving up to 395 Wh/kg specific energy) to vertically integrated modular battery systems and complete battery modules. The 20 Ah cells feed into the first-generation lithium-metal battery module (featuring 60 cells in a validated pack achieving 284.8 Wh/kg) which serves aviation applications including eVTOL. The portfolio serves multiple mobility segments: eVTOL, eCTOL, automotive, UAV/drones, marine, and e-bikes. The company is a fully owned subsidiary of Northvolt, combining startup agility with large-scale manufacturing capabilities.

Differentiator

Problem solved

Functional benefit

Products and services

• High-performance lithium-metal cells (5 Ah and 20 Ah pouch cells) Pure lithium-metal anode pouch cells (5 Ah and 20 Ah) leveraging Cuberg's proprietary liquid electrolyte to deliver cell-level specific energy of 395 Wh/kg, externally validated by U.S. testing house Element. Designed for aviation, high-performance automotive, and other demanding electric mobility applications requiring high energy density, temperature tolerance, stable cycling, and low internal resistance.
• First-generation lithium-metal battery module Vertically integrated lithium-metal battery module featuring 60 of Cuberg's 20 Ah pouch cells. Designed for eVTOL aircraft operating requirements, capable of providing high discharge rates at low weight with consistent performance over hundreds of missions. Validated by TÜV SÜD at 284.8 Wh/kg specific energy and 692 cycles before reaching 90% capacity retention.
• Modular battery systems Vertically integrated battery systems optimized for vehicle integration, featuring well-understood manufacturing methods and built on Cuberg's lithium-metal cells. Designed to provide aviation, automotive, and other electric mobility customers with customizable, certifiable battery packs tuned to specific vehicle integration requirements.
• Next-generation battery systems Complete battery solutions comprising Cuberg's lithium-metal cells, modules, and full battery systems designed for high-performance electric mobility applications including aviation, automotive, marine, and UAVs. Offered to enterprise customers under customized integration and direct enterprise sales agreements.

Quantifiable outcome

• Doubled electric flight range compared to typical lithium-ion solutions (at 270 Wh/kg module level)
• +4 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Two partnerships are on record, tiered core and flagship.

• Northvolt LabscoreStrategic or Co-development Partner · 1 August 2024Northvolt decided to integrate Cuberg lithium-metal technology into Northvolt Labs in Sweden. R&D activities consolidated at Northvolt Labs in Västerås, Sweden, combining lithium-ion, sodium-ion, and lithium-metal development under one roof for cross-innovation and accelerated development.
• Safran Electrical & PowerflagshipStrategic or Co-development Partner · 13 September 2023Industrial, technical and commercial cooperation agreement to jointly develop aviation energy storage systems for future full electric and hybrid aircraft. Safran is a world leader in aircraft electrical systems with 11,500 employees across 13 countries. The partnership combines Safran's electric propulsion expertise with Cuberg's lithium-metal battery technology to create integrated, certifiable propulsion solutions.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• LG Energy Solution: LG Energy Solution is a global Tier-1 lithium-ion cell manufacturer serving automotive, mobility, and ESS customers — a broad incumbent competing for the same premium mobility and EV battery programs that Cuberg targets.
• CATL: Contemporary Amperex Technology is the world's largest battery manufacturer, supplying lithium-ion cells across automotive, energy storage, and mobility — a broad incumbent that competes for next-generation battery programs and design-wins in the same mobility customer base as Cuberg.

Direct peers

• Amprius Technologies: Amprius Technologies manufactures silicon-anode lithium-ion batteries with a strong aviation and eVTOL focus, including lightweight cells for HAPS and other aerial platforms — directly comparable as a high-energy-density battery developer targeting electric aviation.
• QuantumScape: QuantumScape develops solid-state lithium-metal batteries, backed by Volkswagen, with automotive and emerging mobility applications — directly comparable to Cuberg as a next-generation battery developer pursuing premium mobility OEMs.
• Sion Power: Sion Power manufactures lithium-metal batteries (with sulfur cathodes) targeting aerospace, drones, and EV applications — comparable to Cuberg as another developer pursuing lithium-metal chemistries for weight-sensitive mobility.
• SES AI: SES AI (formerly SolidEnergy Systems) develops hybrid lithium-metal rechargeable cells for electric vehicles and eVTOL applications — directly comparable to Cuberg in chemistry, target markets, and aviation ambitions.
• Solid Power: Solid Power develops all-solid-state battery cells and has partnerships with BMW and Ford targeting automotive and other mobility applications — directly comparable as a next-generation battery peer also serving regulated mobility customers.
• Enovix: Enovix develops 3D silicon-anode lithium-ion batteries emphasizing energy density and safety for consumer electronics, IoT, and mobility applications — comparable as a premium energy-density battery developer serving high-performance mobility adjacent customers.

Emerging players

• StoreDot: StoreDot develops extreme-fast-charging silicon-dominant battery cells for electric vehicles — an emerging next-generation battery developer with partial overlap to Cuberg's lithium-metal-adjacent chemistries and shared interest in premium EV/mobility design-wins.
• Enevate: Enevate develops silicon-dominant battery technology enabling high-energy and fast-charging cells for EVs — an emerging developer with partial overlap to Cuberg's premium-mobility positioning and focus on next-generation anodes.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/watch?v=fpDx3NYu0kA
• LinkedInlinkedin.com/company/cuberg

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds2 records

Investors3 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 Cuberg