# Sepion Technologies

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/sepion-technologies

- Industry: Energy Storage & Batteries
- Headquarters: Emeryville, US
- Website: www.sepiontechnologies.com
- Total disclosed funding: $29M
- Latest round: Series B (Mar 26, 2026)
- Investors on record: 18

## About

Sepion Technologies, Inc. develops advanced separator technology for lithium-ion and lithium-metal batteries, enhancing energy density while minimizing vehicle mass. The company focuses on solutions for electric vehicles, catering primarily to the North American and European markets. Founded in 2015, Sepion Technologies, Inc. is based in Emeryville, US, and specializes in innovative separator solutions for the battery industry. The company was founded by Brett Helms and Peter Frischmann, with Peter currently serving as CEO. In March 2026, Sepion Technologies, Inc. raised USD 10 million in series B funding led by Fine Structure Ventures, with participation from VoLo Earth Ventures, Impact Science Ventures, ACVC Partners, W. L. Gore & Associates, Syensqo Ventures, Catalus Capital, and Chailease International Financial Leasing Company Limited. Sepion Technologies specializes in advanced separator technology designed for lithium-ion and lithium-metal batteries. Their core products include proprietary coated separators that leverage nanoscience and polymer chemistry to enhance energy density and reduce vehicle mass. These separators are engineered to filter ions at the atomic level, allowing lithium ions to pass while blocking harmful transition metals such as nickel and cobalt. The company targets automakers and battery manufacturers in North America and Europe, addressing the growing demand for efficient and sustainable battery solutions in the electric vehicle sector. The revenue model of Sepion Technologies revolves around business-to-business transactions with automakers and battery producers seeking innovative separator solutions. The company engages in partnerships and collaborations to supply its coated separators, focusing on bulk orders and prototype cells. As Sepion scales production from its facility in Alameda, CA, it positions to capture more revenue opportunities across the automotive and battery manufacturing industries, with its products designed to improve performance metrics like reduced vehicle mass and enhanced energy density. Moving forward, Sepion Technologies plans to introduce new products tailored for the evolving electric vehicle market. The company is also exploring expansion into additional geographical regions beyond North America and Europe, aiming to penetrate emerging markets by 2025. The company will use the April 2026 funding to scale U.S.-based polymer production, meet commercial orders, expand its product lines, and strengthen operations.

## Funding rounds

- Series B, Mar 26, 2026, $10M — Catalus Capital, W. L. Gore & Associates, Inc., VoLo Earth Ventures, Fine Structure Ventures, ACVC Partners, Impact Science Ventures, Syensqo Ventures, Chailease International Financial Leasing Company Limited
- Series A, Oct 26, 2021, $19M — Industrial Technology Investment Corporation, Dolby Family Ventures, Motus Ventures, Alumni Ventures Group, 11.2 Capital, Gaingels, Creative Ventures, VoLo Earth Ventures, Calm Ventures, Fine Structure Ventures, SV Pacific Ventures, ACVC Partners, Solvay Ventures, Impact Science Ventures

## Investors

- Industrial Technology Investment Corporation (https://capitalatlas.ai/funds/industrial-technology-investment-corporation) — Series A
- Dolby Family Ventures (https://capitalatlas.ai/funds/dolby-family-ventures) — Series A
- Motus Ventures (https://capitalatlas.ai/funds/motus-ventures) — Series A
- Alumni Ventures Group (https://capitalatlas.ai/funds/alumni-ventures-group) — Series A
- 11.2 Capital (https://capitalatlas.ai/funds/11-2-capital) — Series A
- Gaingels (https://capitalatlas.ai/funds/gaingels) — Series A
- Creative Ventures (https://capitalatlas.ai/funds/creative-ventures) — Series A
- VoLo Earth Ventures (https://capitalatlas.ai/funds/volo-earth-ventures) — Series A, Series B
- Calm Ventures (https://capitalatlas.ai/funds/calm-ventures) — Series A
- Fine Structure Ventures (https://capitalatlas.ai/funds/fine-structure-ventures) — Series A, Series B
- SV Pacific Ventures (https://capitalatlas.ai/funds/sv-pacific-ventures) — Series A
- ACVC Partners (https://capitalatlas.ai/funds/acvc-partners) — Series A, Series B
- Solvay Ventures — Series A
- Impact Science Ventures (https://capitalatlas.ai/funds/impact-science-ventures) — Series A, Series B
- Catalus Capital (https://capitalatlas.ai/funds/catalus-capital) — Series B
- W. L. Gore & Associates, Inc. — Series B
- Syensqo Ventures (https://capitalatlas.ai/funds/syensqo-ventures) — Series B
- Chailease International Financial Leasing Company Limited — Series B