Sepion Power™
Performance optimization
High-performance separator designed to maximize charging speed, energy density, and system efficiency. Designed for applications where performance leads.
Explore Sepion Power™
“This is the next-gen separator our customers have been asking for”
Steven Zhang
CTO at Shenzhen Senior Technology Material Co. Ltd.
“The technologies platform potential, and Sepion’s ability to scale without disrupting existing manufacturing, are what excite us as we support the team’s move toward commercialization”
Edward Rubin
Leader of W. L. Gore & Associates’ venture funds
This is exactly the mission of our battery platform and by investing in Sepion’s technology, we are progressing in our journey to enable safer, more performing and more sustainable batteries.
Mike Finelli
Chief Technology & Innovation Officer and Chief North America Officer at Syensqo
- MSA Signed
- In Commercial Production
- Customers Qualifying for Launch
- 20+ Patent Family
Supported by leading energy institutions and strategic partners
The Platform
Control at the nanoscale. Impact at the gigascale
Sepion designs polymer materials that define:
How ions move
Ceramic Coated Separator
Separator Today - Normal Operation
- Lithium
- Transition Metal
How metals cause problems
Ceramic Coated Separator
Separator Today - Stressed Operation
- Lithium
- Transition Metal
How Sepion stabilizes
Sepion Coated Separator
Sepion Separator - All Operations
- Lithium
- Transition Metal
How performance scales
Sepion Coated Separator
Sepion Separator - Market Ready
Our platform enables both high-performance energy systems and durability-focused infrastructure solutions.
Platform expressions
Two commercial expressions. One shared architecture. Addressing a fast-growing $15B market.
Sepion Shield™
Protection and stabilization
Durability-focused separator designed to enhance safety, extend cycle life, and stabilize system costs. Designed for applications where durability and resilience matter most.
Explore Sepion Shield™Invisible advantage
Inside advanced energy systems is a separator layer just microns thick
Few see it, yet it defines:
How efficiently ions flow
Sepion enables selective ion transport - supporting faster charging and higher-rate performance.
How long performance can be sustained
Sepion protects against material breakdown - extending cycle life and maintaining system performance.
How stable the system remains
Sepion strengthens the separator structure - improving thermal stability and reducing degradation.
Sepion redefines the separator at the molecular level - enabling more with 10x less material than incumbent coatings.
Applications
One platform. Every application.
Energy Storage
Faster charging, longer range, and more efficient battery performance for current and next-generation vehicles.
Stationary Applications
Longer cycle life, smaller footprint, greater bankability.
Consumer Electronics
Thin, light, fast charging.
AI Infrastructure
Durable, stable energy support for high-demand environments.
Industrial & Water Systems
Selective separations in demanding environments at scale.
Built for today
Built to deploy, not to disrupt
Proven on commercial equipment. Ready for your line.
01
Direct replacement for ceramic coated separators - no retooling needed
02
Drop in with all Li-ion chemistries
03
In commercial production today
04
Global toll manufacturing network for resilient, regional supply
Sepion: Frontiers
Where advanced materials meet global challenges
Sepion's platform extends beyond today’s commercial products. Possibility Labs explores how demonstrated molecular control can address:
Water purification and resource recovery
Industrial and gas separations
Critical metal production
Emerging energy architectures
Next-gen energy storage solutions
Advanced materials will define the next era of infrastructure.
Build with us