Sion Power
Sion Power is a Tucson, Arizona-based developer of Licerion® lithium-metal battery technology (500+ Wh/kg) serving defense, aerospace, and electric vehicle OEMs through direct enterprise sales, strategic partnerships with LG Energy Solution, Cummins, and Airbus, and a newly launched Strike/Echo product line for unmanned military systems.
- Company typePrivate
- Founded1989
- HeadquartersTucson, United States
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What Sion Power does
Sion Power Corporation is a privately held, Tucson, Arizona-based developer and manufacturer of advanced lithium-metal battery technology, founded in 1989 as a Brookhaven National Laboratory spin-off under the name Moltech. The company commercializes the Licerion® platform, which replaces graphite anodes with proprietary vapor-deposited metallic lithium anodes, multi-component electrolytes, and a patented compression system for dendrite resistance, achieving energy densities exceeding 500 Wh/kg—roughly 50% above conventional lithium-ion chemistries. Its product portfolio spans Licerion Strike (primary single-discharge cells for defense UAVs), Licerion Echo (rechargeable cells for extended-endurance ISR), Licerion EV (large-format 17-56 Ah automotive cells with 15-minute fast-charge capability), and Licerion HE (high-energy cells for HAPS and stratospheric platforms), with drop-in battery packs qualified to MIL-STD-461G and MIL-STD-810H.
The company operates from a 110,000-115,000 sq. ft. Tucson campus housing dry-room cell manufacturing, a 5,300 sq. ft. safety and abuse test lab with 2,000+ test channels, and a new 75 MWh automated production line built with Mühlbauer Group; an additional 111,400 sq. ft. facility is slated for completion by 2026. Revenue mechanics combine direct enterprise sales of cells and battery packs with strategic OEM partnerships and licensing; named customers and partners include Airbus Defense and Space, Thales Alenia Space-France, Cummins, LG Energy Solution, BASF, and Astro Max. In early 2026, Sion Power formally pivoted its go-to-market emphasis from electric vehicles toward defense and aerospace applications, citing rising demand for high-energy-density batteries in unmanned aerial systems, loitering munitions, and ISR platforms, alongside favorable U.S. domestic-sourcing requirements under NDAA Section 848.
The company has raised over $230 million to date, including a $75 million Series A in January 2024 led by LG Energy Solution with participation from Euclidean Capital and Hillspire LLC, plus prior investments from Cummins (2021) and BASF (2012), alongside DOE and ARPA-E grants. It is led by CEO Pamela Fletcher (ex-GM, Delta) with founder Tracy Kelley serving as President and Chief Science Officer; recent additions include COO Liz Rojewski, CCO Mitch Hourtienne, and Chief Manufacturing Officer Michael Canada. Sion Power holds 430+ patents and is UN 38.3, IEC 62133, UL 2054, and MIL-STD qualified, with DFARS-compliant domestic supply chain traceability.
Sion Power firmographics
Firmographics- Name
- Sion Power
- Legal name
- Sion Power Corporation
- Website
- https://sionpower.com
- Company type
- Private
- Founded year
- 1989
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Sion Power is a Tucson, Arizona-based developer of Licerion® lithium-metal battery technology (500+ Wh/kg) serving defense, aerospace, and electric vehicle OEMs through direct enterprise sales, strategic partnerships with LG Energy Solution, Cummins, and Airbus, and a newly launched Strike/Echo product line for unmanned military systems.
- Ownership category
- akta.pro rank
Sion Power industry classification
Industry- Product category
- Advanced Battery Technology
- NAICS
- Battery Manufacturing (33591), Battery Manufacturing (335910), Electrical Equipment Manufacturing (33531), Electrical Equipment Manufacturing (3353)
- 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 Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB), High-Voltage, Power Discretes & Modules (IGBT/MOSFET/SiC/GaN) (HDAHAAAK)
Keywords
Where Sion Power is headquartered
LocationHeadquarters
- HQ city
- Tucson
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Sion Power business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Infrastructure, Personnel, Supply Chain, Marketing or Sales, Operations
Revenue model
- Battery Cell Sales: Sale of Licerion® lithium-metal battery cells for defense, aerospace, and EV applications. Cells sold in various formats including 6Ah aerospace cells and 56Ah automotive cells for OEM evaluation and integration.
- Technology Licensing: Licensing of Licerion® technology and patents to battery manufacturers and automotive companies. Example: LG Chem licensed boehmite separator technology through Optodot Corporation.
- Custom Battery System Development: Development and supply of custom battery packs and systems for defense platforms including UAVs, loitering munitions, and autonomous systems. Aligns with U.S. National Defense Authorization Act domestic sourcing requirements.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Multi-year contract | Licerion Strike (ST-20/ST-30) - Primary defense cells |
| Unit Pricing | Multi-year contract | Licerion Echo - Rechargeable defense cells |
| Unit Pricing | Multi-year contract | Licerion EV 56Ah automotive B-sample cell |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels5 records
Sion Power product offering
Product offeringCore offering
Sion Power develops and manufactures advanced Licerion® lithium-metal rechargeable battery cells and packs delivering energy densities exceeding 500 Wh/kg. The company offers the Licerion Strike (primary single-discharge defense cells), Licerion Echo (rechargeable defense cells), Licerion EV (electric vehicle cells), and Licerion HE (high-altitude aerospace cells) product lines, all built on proprietary vapor-deposited lithium anode and patented compression technology. Products are designed for direct integration into defense unmanned aerial systems, loitering munitions, ISR platforms, electric vehicles, and high-altitude pseudo-satellites.
Product overview
Sion Power offers the Licerion® proprietary lithium-metal battery technology platform with two primary product lines: Licerion Strike (primary single-discharge cells for high-power defense applications) and Licerion Echo (rechargeable cells for extended endurance missions). The Licerion EV variant targets electric vehicles with fast-charging capability, while Licerion HE serves aerospace applications. The platform uses proprietary vapor-deposited lithium anodes and compression technology to achieve energy densities exceeding 500 Wh/kg—more than 50% beyond conventional lithium-ion. The company also manufactures integrated battery packs meeting defense standards (MIL-STD-461G, MIL-STD-810H) for unmanned aerial systems, loitering munitions, and ISR platforms. All products are developed and manufactured in Tucson, Arizona.
Differentiator
Problem solved
Functional benefit
Brands
- Licerion: Proprietary patented lithium-metal battery technology platform offering high energy density batteries for defense, aerospace, and electric vehicle applications. Includes Licerion Strike (primary single-discharge cells), Licerion Echo (rechargeable cells), and Licerion EV (for electric vehicles).
- Licerion Strike
- Licerion Echo
- Licerion EV
Products and services
- Licerion Strike Primary single-discharge lithium-metal battery cell designed for high-power, high-maneuverability defense UAV applications. Supports 6C continuous discharge rate for sustained high-power output without thermal derating. Available in ST-20 (20Ah, 473 Wh/kg) and ST-30 (30Ah, 500 Wh/kg) variants. Targeted for loitering munitions, tube-launched ISR assets, and high-speed reconnaissance drones.
- Licerion Echo Rechargeable lithium-metal battery cell optimized for energy retention over extended discharge cycles. Maximum energy density platform at up to 510 Wh/kg. Designed for missions where loiter time and range are primary constraints including fixed-wing ISR, high-altitude long-endurance platforms, maritime surveillance, and autonomous swarm elements.
- Licerion EV Lithium-metal battery technology designed for electric vehicle applications, focusing on high energy density, increased cycle life (800+ cycles), safety, and fast charging capability (80% charge in 15 minutes). Large-format 17 Ah pouch cells achieving 400+ Wh/kg and 780+ Wh/L. Targets passenger EVs, commercial fleets, and performance vehicles.
- Licerion HE (High Energy) High-energy lithium-metal variant designed for high-altitude pseudo-satellites (HAPS), high-altitude long-endurance (HALE) aircraft, and unmanned aerial vehicles. Delivers 500 Wh/kg and 1,000 Wh/L with slow cycling capability. Successfully demonstrated with Thales Alenia Space for Stratobus stratospheric airship program with 1000+ cycles.
- Licerion Battery Packs Integrated battery pack systems for defense and aerospace applications. Licerion Strike battery pack achieved 364 Wh/kg pack-level energy density in drone testing. UN38.3 certified, MIL-STD-461G EMI shielded, MIL-STD-810H qualified for shock, vibration, temperature, dust, and humidity. Drop-in replacement form factor for existing UAV platforms.
- Licerion-Sulfur (Li-S) Batteries Lithium-sulfur battery technology commercialized via partnership with Airbus Defense and Space. Earlier version achieved 350 Wh/kg and powered Zephyr 7 HAPS aircraft for record-breaking flights exceeding 11 days. Incorporates protected lithium metal anodes (PLA), unique electrolyte formulations, and engineered cathodes.
Quantifiable outcome
- 140% higher pack-level energy density (364 Wh/kg vs 151 Wh/kg) in head-to-head drone testing, enabling 1 hour of mission endurance vs 33 minutes
- +6 more outcomes
Companies that use Sion Power
Customer profileNamed customers4 records
Segments3 records
Ideal customer profiles2 records
Sion Power technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature8 records
Sion Power partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core, minor and major.
- Mühlbauer GroupcorePartnership for development of new large-format battery cell production line. Mühlbauer provided advanced battery production solutions with investment of more than 100 million euros in last five years.
- Soteria Battery Innovation GroupminorJoined Soteria BIG consortium focused on developing improved battery safety. Sion Power to implement new safety technologies developed by the group.
- CumminscoreMulti-year development agreement to design and supply large-format lithium metal battery cells for Cummins battery packs integrated into electric powertrains for commercial vehicles. Cummins made an investment in Sion Power as part of this agreement.
- Thales Alenia Space-FrancecoreCollaboration to determine Licerion-HE cell capability for Thales Stratobus stratospheric airship. Cells completed 1000 cycles following Stratobus flight profile, enabling 2+ years of continuous operation.
- LG ChemminorLG Chem licensed Sion Power patents covering boehmite separator films for lithium-ion batteries through Optodot Corporation.
- Airbus Defense and SpacecoreThree-year collaborative agreement for Sion Power to enhance and supply proprietary lithium-sulfur batteries for Airbus Zephyr High Altitude Pseudo-Satellite (HAPS) aircraft. Previously successful Zephyr 7 program achieved 14+ day flights.
- BASFmajorTechnical collaboration with world's largest chemical company for development of Licerion technology. BASF provides expertise in materials and process technologies.
Scale indicators11 records
Recent moves7 records
Expansion highlights6 records
Sion Power competitors and assessment
Company assessmentBroad incumbents
- EnerSys: EnerSys is a global leader in stored energy solutions for industrial, defense, and aerospace applications including lithium-ion and proprietary Thin Plate Pure Lead technologies. Comparable defense battery supplier with established U.S. defense procurement relationships.
- Microvast Holdings: Microvast manufactures lithium-ion battery cells, modules, and packs for commercial vehicles, energy storage, and specialty applications. Broader incumbent offering full battery system integration across multiple chemistries with established commercial production.
Direct peers
- Solid Power: Solid Power develops all-solid-state and lithium-metal battery cells targeting EV and defense applications. Direct comparable in Li-metal/next-gen battery technology with similar OEM partnerships and Colorado-based manufacturing footprint.
- Ultralife Corporation: Ultralife Corporation designs and manufactures lithium-ion and primary batteries, chargers, and communication systems for defense, medical, and industrial markets. Comparable as a U.S.-based defense-focused battery manufacturer serving similar end markets.
- Amprius Technologies: Amprius Technologies manufactures silicon-anode lithium-ion batteries with ultra-high energy density for aviation, defense, and EV markets. Highly comparable in serving HAPS/UAV/defense drone customers with high-energy-density battery cells.
- QuantumScape: QuantumScape develops solid-state lithium-metal batteries with a major partnership with Volkswagen. Comparable in next-generation Li-metal battery technology and EV commercialization pathway, though currently focused on passenger EV applications.
- SES AI Corporation: SES AI (formerly SolidEnergy Systems) develops hybrid lithium-metal batteries for EV and urban air mobility applications. Directly comparable in Li-metal battery technology with automotive OEM development agreements (GM, Honda, Hyundai).
- Enovix Corporation: Enovix develops 3D silicon-anode lithium-ion batteries targeting consumer electronics, IoT, and EV applications. Comparable as a next-generation battery technology company pursuing OEM integration with similar manufacturing scale-up profile.
Emerging players
- NanoGraf Technologies: NanoGraf develops silicon-anode lithium-ion battery technology for defense, consumer electronics, and EV applications. Comparable emerging player in advanced battery technology with U.S. domestic manufacturing focus and defense applications.
- EnerDel: EnerDel is a U.S.-based manufacturer of lithium-ion battery systems for commercial vehicles, defense, and grid storage applications. Comparable in commercial vehicle battery focus; former employer of Sion Power's CMO Michael Canada.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Sion Power social profiles
Digital presenceSion Power compliance and trust
Trust signalCompliance7 records
Sion Power financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sion Power leadership team
Management profileNumber of profiles
Profiles13 records
Sion Power funding detail
Funding detailFunding overview
Funding rounds3 records
Investors5 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sion Power M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sion Power
What does Sion Power do?
Sion Power develops and manufactures advanced Licerion® lithium-metal rechargeable battery cells and packs delivering energy densities exceeding 500 Wh/kg. The company offers the Licerion Strike (primary single-discharge defense cells), Licerion Echo (rechargeable defense cells), Licerion EV (electric vehicle cells), and Licerion HE (high-altitude aerospace cells) product lines, all built on proprietary vapor-deposited lithium anode and patented compression technology. Products are designed for direct integration into defense unmanned aerial systems, loitering munitions, ISR platforms, electric vehicles, and high-altitude pseudo-satellites.
Is Sion Power a public or private company?
Sion Power is a private company. It is classified as venture growth investor backed and is currently operating.
When was Sion Power founded?
Sion Power was founded in 1989. It employs 51 to 100 people.
Where is Sion Power based?
Sion Power is headquartered in Tucson, United States, in the North America region.
How does Sion Power make money?
Three revenue lines are on record. Battery Cell Sales are the primary driver. The others are technology Licensing and custom Battery System Development.
Who are Sion Power's main competitors?
Broad incumbents on record are EnerSys and Microvast Holdings. Direct peers are Solid Power, Ultralife Corporation, Amprius Technologies, QuantumScape, SES AI Corporation and Enovix Corporation. Emerging players are NanoGraf Technologies and EnerDel.
Does Sion Power have an API?
No public API is recorded for Sion Power.
What industry is Sion Power in?
Sion Power's product category is Advanced Battery Technology. Its primary akta.pro industry code is IMAGAHAA, Battery Cells (Li-ion, LFP, Sodium-ion, Lead-acid, NiMH), with a secondary code of IMAGAHAB, Battery Modules & Packs (Industrial/Commercial pack assembly). Its NAICS code is 33591 and its SIC code is 3600.