About
We are Sion Power
Dedicated to pursuing a cleaner future, we are unlocking technology through science. Our industry experts are at the center of this revolution, bringing the next level of batteries to the market.
OUR MISSION
To produce a state-of-the-art battery that enables electric vehicles and other mobility applications to reach longer ranges and higher performance, while targeting lower weights and marginal cost savings.
What we do
Backed by decades of research and development, Sion has developed our trademarked Licerion® technology that is offering a unique approach to next-generation batteries and redefining energy.
Our Engagements
OUR History
Sion Power, a privately held company, was founded in 1989 as Moltech, a spin-off from Brookhaven National Laboratory, with a focus on research and development. Since then, the company has grown, attracting an impressive group of scientists, engineers, and partners who have worked to develop the required technology to create a next generation electric vehicle battery.
Today the company employs over 90 employees, many of whom have Ph.D.’s. This impressive group has acquired over 430 international patents and patent applications. The company’s 115,000-square-foot production and R&D facility includes a dry room for cell manufacturing, a robust safety and abuse testing lab, and over 2,000 test channels in a separate 5,300-square-foot test facility. Sion Power also has state-of-the art analytical/materials, and electronic assembly labs.
Decades of research and development have yielded the Licerion® lithium metal technology, which is poised to dramatically change the lithium battery landscape. Licerion® delivers the highest combination of energy density and specific energy available combined with safety and a dramatic reduction in cell weight.
Our Values
At Sion Power, we follow four fundamental values:
Innovation
Never stop ideating.
Commitment
Be an agent of change.
Responsibility
Deliver the safest and most reliable products.
Responsiveness
Transact in clarity and achieve quickly.
COMPANY STATS
Sion power is revolutionizing rechargeable batteries.
90+
World-class employees based in Tuscon, Arizona
430+
Patents enabling next gen semi-solid state batteries for EVs
$230M+
Raised from leading financial and strategic investors
4
Joint development agreements with leading automotive OEMs and battery cell manufacturers
75 MWh/ year
Sion Power cell construction pilot line online in 2025 for validation of Licerion® technology by OEMs
1.25M m2/year
Anode pilot line online in 2026
World-class facilities and capabilities
- 115,000 sq. ft. facility in Tucson, AZ
- 5,300 sq. ft. battery test facility
- Advanced testing capabilities: 2,000+ channels, environmental & abuse lab
- State-of-the-Art Cathode Coating
- Large Format Lithium Metal Cell Assembly Pilot Line
- Cell Test Facility with over 2,000 Channels for Cell Formation
- Machine Shop for Rapid Prototyping
Technology
Analytical, materials, electronics laboratories with complete cell testing capability.
Products
6 and 14 Ah cell production with verified battery pack feasibility, UN 38.3 certified cells currently in validation.
Manufacturing
Complete battery build( anode, cathode, pouch assembly and cell formation).
IP Portfolio
Sion has achieved major breakthroughs in lithium-metal battery technology, protected by broad, carefully crafted patent claims.
Our Team
Leadership
CHIEF EXECUTIVE OFFICER
Pamela Fletcher
Pamela Fletcher is CEO of Sion Power, the leading developer of high-energy lithium-metal rechargeable battery technology. She is focused on accelerating the commercialization of the company’s Licerion® lithium-metal technology. This technology promises to disrupt conventional lithium-ion technology in cost and energy with drop-in technology and accelerate the adoption of electric vehicles.
Before joining Sion, Pam was appointed Delta Air Lines’ first chief sustainability officer. She developed the aviation industry’s leading sustainability strategy, focusing on reducing Delta’s climate impact and embedding eco-friendly practices throughout the company. She launched the Delta Sustainable Skies Lab and formed strategic partnerships with companies like Joby Aviation.
Pam spent more than 25 years at General Motors in a variety of positions. Most recently, she led the Global Innovation function, creating high-growth businesses and opening new markets. She spearheaded the launch of BrightDrop, which is set to reach $1B in revenue – faster than any new venture. Pam also restructured GM Defense and launched OnStar Insurance.
As GM vice president of Global Electric Vehicle Programs, Pam managed all global electric and autonomous vehicle initiatives, leading the launch of all-electric vehicles and advancing autonomous driving technologies with Cruise Automation. Earlier, she led teams responsible for the Chevrolet Volt and Bolt EV, achieving market leadership and industry accolades.
Tracey Kelly
President,
Chief Science Officer
Tracy Kelley has been with Sion Power for 20 years with his current role being President / Chief Science Officer. Tracy has held various positions previously at Sion Power, including CEO for eight years and CTO for five years. Before joining Sion Power, Tracy worked for Valence Technology, a developer of lithium-ion batteries.
Mitch hourtienne
Chief Commercial Officer
Mitch Hourtienne is the chief commercial officer (CCO) of Sion Power, where he oversees commercial strategy, customer engagements, partnerships, and supply chain management as the company advances its Licerion® lithium-metal battery technology.
With over 25 years of experience in automotive technology and sensor development, Mitch has a proven track record of bringing innovative technologies to market. Before joining Sion Power, he served as CCO at Cepton, a Silicon Valley-based lidar startup, where he led a major contract win with General Motors, contributed to the company’s successful Nasdaq IPO in 2022, and played a key role in its acquisition by Koito Manufacturing.
Prior to Cepton, he held leadership roles at Sensata, Freescale Semiconductor, Infineon Technologies, and Siemens VDO Automotive, specializing in product marketing and sales. Mitch’s expertise in technology commercialization and supplier dynamics strengthens Sion Power’s position as it moves toward market adoption of its next-generation battery solutions.
LIZ rOJEWSKI
Chief Operating Officer
Liz Rojewski is the chief operating officer (COO) of Sion Power, where she oversees day-to-day operations, program execution, and cross-functional collaboration to drive the commercialization of the company’s Licerion® lithium-metal battery technology.
Liz brings over 20 years of experience in innovation, electrification, autonomous mobility, and aftersales engineering from General Motors. Most recently, she led GM’s aftersales engineering team, enhancing engineering efficiency and expanding the remanufacturing portfolio. Previously, as director of hardware engineering at BrightDrop, she led the development of the Trace eCart, an IoT-powered delivery solution piloted by FedEx and Kroger.
She also played a key role in autonomous vehicle development at Cruise, managing the engineering execution of the Cruise Origin program.
With a strong track record of leading complex programs through technical innovation, Liz’s leadership will be instrumental in advancing Sion Power’s next-generation battery technology.
Board of Directors
STEFAN JACOBY
Chairman of the Board
Gaurav Ahluwalia
Board Member
SCOTT BRADY
Board Member
HANSOL KIM
Board Member
MARTIN FISCHER
Board Member
Robert McIntyre
Board Member
Lydie Derebreu
Board Member
Pamela Fletcher
Board Member
Career opportunities
Be a part of Sion Power’s next-generation cell technology.
Sion Power is looking for team members to help drive the future of batteries. Empower your career by joining a U.S. battery manufacturer and technology expert. At Sion Power we value our employees and their families. We offer competitive benefits designed to promote health and wellness including medical, dental, vision, flexible spending accounts, retirement, and an understanding of work-life balance.
Address
Sion Power Corporation
2900 E. Elvira Rd
Tucson, AZ 85756
Phone
520-799-7500