Amprius Technologies, Inc., a leader in next-generation lithium-ion batteries with its Silicon Anode Platform, today announced the appointment of Tom Stepien as President, effective May 1, 2025. In this role, Stepien will oversee the Company’s day-to-day operations, commercial growth, and market expansion to meet the accelerating demand for Amprius’ high-performance silicon battery technology. Stepien has also been appointed as a member to the Company’s Board of Directors, effective May 1, 2025.

Stepien brings over 35 years of leadership experience across customer-focused, innovation-driven technology companies. Most recently, Stepien served as CEO of South 8 Technologies, where he led the commercialization of a novel liquefied gas electrolyte for lithium-ion batteries. He also co-founded and led Primus Power, a long-duration stationary storage company, and was an Operating Partner at KCK Group, a private equity firm focused on industrial technologies. Earlier in his career, he held leadership roles at Applied Materials, the global semiconductor equipment leader.

“Tom has a rare combination of technical expertise and market leadership at innovative technology companies,” said Dr. Kang Sun, CEO of Amprius Technologies. “As we expand our global footprint, Tom’s decades of experience growing energy and manufacturing businesses will be instrumental in guiding Amprius through the next phase of commercial execution. We look forward to welcoming Tom as we continue our mission to power the future of electrification with next-generation battery technology.”

“Amprius is one of the few companies that combines breakthrough battery innovation with the ability to scale,” said Stepien. “With a powerful technology platform, an exceptional team, and growing market traction, the Company is well-positioned to lead the next wave of electrification. I’m excited to help build on that foundation and expand Amprius’ impact across high-growth sectors where performance and energy density matter most.”

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