About Sion Power
Lab-Born. Industry-Backed.
Sion Power has spent more than three decades shaping the future of energy storage. Today, our proprietary Licerion® platform continues that legacy—delivering lighter, safer, high-performance batteries for the next generation of electrified mobility.
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 less material use, lower weight and improved cost savings.
Materials
Cell Design
System Architecture
WHAT WE DO
Next-Gen Chemistry,
Real World Focus.
We’re advancing lithium-metal battery development through materials innovation, proprietary anode design, and scalable system-level engineering. Licerion® is built to meet demanding automotive standards while solving the historic challenges of dendrite formation, weight, and charge time.
CORE 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.
OUR HISTORY
Founded in 1989 as a spin-off from Brookhaven National Laboratory, Sion Power began as a research-driven initiative focused on unlocking the potential of advanced battery chemistries. What started as Moltech has grown into a privately held company with a deep bench of scientists, engineers, and global partners committed to redefining energy storage.
Today, Sion Power operates from a 115,000-square-foot R&D and production facility in Tucson, Arizona.
Our team of 90+ employees—including dozens of Ph.D. scientists—has secured more than 430 international patents and applications.
Inside our campus, you’ll find a dry room for cell manufacturing, a 5,300-square-foot safety and abuse testing lab with over 2,000 test channels, and state-of-the-art laboratories for analytical, materials, and electronics research.
After decades of development, our breakthrough Licerion® technology is ready to reshape the lithium battery landscape—delivering unmatched energy density and specific energy in a safer, dramatically lighter cell.
LEADERSHIP TEAM
Led by Industry Veterans
Sion Power is led by a team of engineers, scientists, and executives with decades of experience in EVs, battery development, and clean energy commercialization.
Pamela Fletcher | CEO
Pamela Fletcher is chief executive officer of Sion Power, leading the commercialization of its next-generation Licerion® lithium-metal battery technology. She previously served as Delta Air Lines’ first Chief Sustainability Officer, where she launched the Delta Sustainable Skies Lab and advanced the airline’s climate strategy. At General Motors, Fletcher held key leadership roles, including Vice President of Global Innovation and Vice President of Global Electric Vehicle Programs, overseeing the development of award-winning vehicles such as the Chevrolet Volt and Bolt EV, as well as technologies like Super Cruise. Her career has consistently focused on building innovative businesses that drive sustainability and transform mobility.
Mitch Hourtienne | CCO
Mitch Hourtienne is chief commercial officer of Sion Power, where he leads commercial strategy, customer engagement, partnerships, and supply chain development. He brings over 25 years of experience in automotive technology and commercialization, with a focus on sensors and advanced systems. Prior to Sion, he was CCO at Cepton, where he secured a major contract with General Motors, supported the company’s IPO, and guided its acquisition by Koito Manufacturing. Mitch also held leadership roles at Sensata, Freescale, Infineon, and Siemens VDO, helping bring breakthrough technologies to market.
Tracy Kelley | Pres. CSO
Tracy Kelley has been with Sion Power for 20 years, currently serving as president and chief science officer. He has held multiple leadership roles during his tenure, including eight years as chief executive officer and five years as chief technology officer. Tracy’s deep technical expertise and leadership have been instrumental in advancing Sion Power’s battery technology and positioning the company as a pioneer in next-generation energy solutions.
Before joining Sion Power, Tracy worked at Valence Technology, a developer of lithium-ion batteries, where he contributed to early innovations in advanced battery systems.
Liz Rojewski | COO
Liz Rojewski is chief operating officer of Sion Power, responsible for daily operations, program execution, and cross-functional collaboration to commercialize the company’s Licerion® lithium-metal battery technology. She brings over 20 years of experience from General Motors, where she led teams in electrification, autonomous mobility, and aftersales engineering. Liz played a key role in the Cruise Origin program and led hardware development at BrightDrop, including the Trace eCart pilot with FedEx and Kroger. Her leadership in driving innovation and complex program delivery strengthens Sion Power’s path to market.
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
About Sion Power
Scale. Speed. Staying Power.
70+
Team members in Tuscon, AZ
430+
Patents and applications
$230M+
In funding
40
Development agreements with OEMs
Let’s Power the Future–
Together.
Looking to collaborate or explore what Licerion® can do for your platform? Let’s talk.