15+ Years
of Polymer Research
Berkeley Lab
Origin
20+
Patents
25,000 ft²
Pilot Facility
Commercial Today
Our current battery products are just initial proof points. The PIM platform is a broad foundation for a myriad of applications, spanning from advanced water separation to critical materials recovery.
Leadership
Peter Frischmann, PhD
CEO & Co-Founder
PhD in Chemistry. Led Sepion from Berkeley Lab research to commercial production.
Brett Helms, PhD
CSO & Co-Founder
Staff Scientist at Berkeley Lab. Invented the polymer separator technology behind Sepion.
Brian Sisk, PhD
CTO
Launched packs at Rivian and cells at A123. Been shipping EV and battery products for two decades.
Katie O'Day
Business Operations and HR Lead
Growing leaders from Walgreens to Bodycote.
Advisors
Sepion is supported by advisors across technology, manufacturing, and commercialization. These advisors bring experience across battery systems, advanced materials, and global infrastructure.
Randy Chan
BD Strategy & Ops
Yet-Ming Chiang
Technology & Technoeconomics
Michelle Meng Hsiung Kiang
Partnerships & Fundraising
Nitin Vaish
Product & Commercial
Ed Williams
Executive Coach & Partnerships
Where materials become real
Sepion's work happens in Silicon Valley, California — where research, engineering, and manufacturing come together. Our headquarters is both an innovation hub and a manufacturing center to:
- Develop new polymer architectures
- Test materials in real battery systems
- Refine production processes
- Prepare products for commercial scale