Backed by years of research, Sion Power has an impressive team of industry expertise.

About Us

Sion Power is a privately owned company that began as a spin-off from Brookhaven National Laboratory in 1989 as Moltech, which focused its efforts on research and development. Since then, the company has grown, attracting an impressive group of scientists, engineers, and partners who relentlessly developed the technology needed to reach the next generation of rechargeable battery technology.

Today the company consists of over 100 employees, many of whom have Ph.D.’s. This impressive group of individuals has acquired over 470 international patents and patent applications. The company’s 67,000 square foot production and R&D facility include a dry room for fabrication as well as test, analytical/materials, and electronic assembly labs. In addition, the company completed a 5,300 square foot battery test facility.

Years of research and development have yielded the Licerion® lithium metal technology, which is poised to dramatically change the lithium battery landscape, delivering the highest combination of energy density and specific energy available.


  • Tracy Kelley

    Chief Executive Officer
  • Michael Canada

    Chief Operating Officer
  • Mack Treece

    Chief Financial Officer
  • Carlos Restrepo

    Chief Technology Officer

Tracy Kelley has been with Sion Power for 20 years. He has served as CEO for the past three years and has held various positions previously at the company, including CTO for five years. Before joining Sion Power, Tracy worked for Valence Technology, a developer of lithium-ion batteries.

Mr. Canada brings over 20 years of progressive leadership experience in engineering, operations, project management, and strategic planning for automotive, aerospace, and clean technology customers. Most recently, Mr. Canada served as President and CEO of EnerDel. Previously, he was General Manager at Altairnano serving lithium-ion customers and held roles of increasing responsibility with global companies in the automotive industry, including Daimler, Harman/Becker Automotive Systems, and Goodrich in the aerospace segment.

Mack has over 30 years of experience in senior management positions, with a specific focus on successfully scaling young companies into dominant market positions. Prior to joining Sion Power, Mack served as the Chief Financial Officer and Chief Strategy Officer at EOS Energy Storage (“Eos”).  Prior to Eos, Mack served as the Chief Executive Officer for Viridity Energy from 2012 to 2019 and was also the Chief Financial Officer for Viridity. He has a B.S. in Finance and Marketing from the University of Virginia and an MBA in International Finance from Widener University.

As CTO of Sion Power, Carlos Restrepo oversees everything from the core electrochemistry to the incorporation of cells into application-specific battery packs. Restrepo has more than 20 years of technology experience in a variety of industries with a focus on energy storage within the solar market. Before joining Sion Power, he was the CTO for Eos Energy Enterprises, a developer of zinc aquos battery technologies, where he led the Innovation, R&D, Engineering, and IT.

Board of Directors

  • Stefan Jacoby

    Executive Chairman
  • Dr. James H. Simons

    Board Member
  • Dr. Leo Guthart

    Board Member
  • Mark W. Heising

    Board Member
  • Gaurav Ahluwalia

    Board Member
  • Markus Solibieda

    Board Member
  • Dr. Peter Schuhmacher

    Board Member
  • Tracy Kelley

    Board Member

Stefan Jacoby, past president of General Motors’ international operations, is a senior consultant who works with leading companies on overall strategy, market position and growth. He has worked and lived in Europe, Asia and the United States. With more than three decades of experience in the automotive industry, he has recently been a key player in the transformative move to autonomous and electrified vehicles. He built a reputation for identifying and creating strategic vision and direction combined with consistent operational implementation. He has a unique perspective on market growth through experience in finance, sales and marketing.  Jacoby recently held the position of president of General Motors International Operations, where he led the transformation and consolidation of the Asian market. Prior to GM, he was global CEO of Volvo Car Group and was CEO of Volkswagen Group of America. Accomplishments include increasing profitability, streamlining business structures and negotiating strategic alliances.  Jacoby has served on international boards of GM, Volvo and Volkswagen and has served the supervisory board of LeasePlan in the Netherlands. Jacoby was also chairman of the Auto Alliance in Washington, DC.

Jim Simmons

James Simons is chairman of the Simons Foundation and board chair and founder of Renaissance Technologies. Prior to his financial career, Simons was chairman of the mathematics department at Stony Brook University, taught mathematics at the Massachusetts Institute of Technology (MIT) and Harvard University, and was a cryptanalyst at the Institute for Defense Analyses. Simons holds a B.S. from MIT and a Ph.D. from the University of California, Berkeley. In 1976, he won the Veblen Prize of the American Mathematics Society for his work in geometry. He is a trustee of the Stony Brook Foundation, Rockefeller University, MIT, Brookhaven National Laboratory, the Mathematics Sciences Research Institute, New York Genome Center, the Science Philanthropy Alliance, and the Institute for Advanced Study, and is a member of the National Academy of Sciences, the American Academy of Arts and Sciences and the American Philosophical Society.

Leo Guthart founded Topspin in 2000. Prior to Topspin, he served as Vice Chairman of Pittway Corporation and Chief Executive Officer of its Security Group of companies, including Ademco, up until it was sold to Honeywell in 2000. After Pittway’s sale to Honeywell, he served as Chairman of the Security and Fire Solutions Group of Honeywell International. He was also Chairman of publicly-held Cylink Corporation, a leading U.S. supplier of encryption equipment that was sold to SafeNet Inc. Leo currently serves as a Director of AptarGroup, Inc. (NYSE: ATR), an international producer of dispensing valves, pumps, and closures for pharmaceuticals and perfumes.

Leo is a graduate of Harvard College where he received a BA degree in Physics in 1958, and of Harvard Business School where he was a George F. Baker Scholar and received both an MBA in 1960 and a Doctorate in Business Administration with a specialty in Corporate Finance in 1966.

Mark Heising is a Managing Director of Medley Partners in Palo Alto, CA. He founded the firm in 2004. Previously he was the President of VLSI Cores, which designs and licenses cryptographic integrated circuits. Mark held various positions at Quickturn Design Systems, Cylink, and Proximity Designs. Mark currently serves on the Board of Directors of C-Quest Capital and the Bipartisan Policy Center Advocacy Network. He also serves on the Advisory Board to Lawrence Berkeley National Laboratory. Mark earned a BS in physics and an MS in electrical engineering and computer sciences from the University of California at Berkeley.

Gaurav Ahluwalia is Managing Director, Venture and Direct Investments at Euclidean Capital, based in New York City. Prior to joining Euclidean, he was a Principal at KKR & Co. He has also worked for TPG (Growth) and Morgan Stanley. Gaurav has an MBA from Harvard Business School and a B.A. in Mathematics and Economics from Macalester College.

Markus Solibieda is the Managing Director of BASF Venture Capital GmbH since November 2016.

Before joining BASF Venture Capital, Markus was a Partner at Mandarin Capital Partners and Head of the company’s Frankfurt office. Previously, he co-founded Baigo Capital, a European growth capital fund focused on the healthcare industry.

Markus started his professional career in the Venture Capital division of Deutsche Bank and subsequently worked for Advent International and 3i in Frankfurt and London. He was CFO and Speaker on the Board of ACG, a semiconductor and RFID technology company, and led the IPO on the Frankfurt Stock Exchange in 1999. Markus received his MBA from the European Business School following studies near Frankfurt, Dijon (France), and Phoenix (USA). He is an active business angel, a mentor to start-ups, and an honorary Board Member of the German Private Equity and Venture Capital Association.

Dr. Peter Schuhmacher is President of the BASF Catalyst Division. Schuhmacher studied chemistry at the Johannes Gutenberg University of Mainz, Germany, and at the University of Amherst, Massachusetts. He earned his doctorate in 1995 at the University of Mainz, following a research fellowship at Scripps Research Institute in San Diego, California. Schumacher has been with BASF since 1995.

Tracy Kelley was assigned Chief Executive Officer July 10, 2017 with over 17 years of battery experience in lithium based battery systems. Tracy previous served as a research scientist at Valence Technology, a developer of lithium polymer batteries for portable applications, heading their failure analysis department. Tracy holds several patents in the area of active cathode materials and battery processing. He attended the University of Alabama majoring in Chemistry and Philosophy.

Career Opportunities

Sion Power is a rapidly growing company with technology that will revolutionize the rechargeable battery industry. We offer competitive compensation, benefits and exciting career opportunities.



Sion Power Corporation
2900 E. Elvira Rd
Tucson, AZ 85756






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