PolyJoule’s breakthrough conductive polymer technology has redefined what’s possible in energy storage. We’ve built a solution that sets a new standard for safety, reliability, and scalability—and we’ve proven it.
Spun out of MIT, PolyJoule started with a mission: to address customer pain points around battery safety risks, short cell lifetimes, toxic footprints, and high energy storage replacement costs. Starting with a single chemist and a fume hood, we discovered, iterated, refined, and advanced our conductive polymer technology. We scaled up from milligrams to metric tons, from coin cell lab tests to full-scale production, and from single cells to high voltage, grid-connected systems.
Today, PolyJoule is the most commercially advanced conductive polymer energy storage company in the world.
PolyJoule’s batteries are backed by more than 263 million hours of operational real-world performance. Grid-connected and field-hardened since 2021, PolyJoule systems have performed flawlessly on three continents through earthquakes, extreme weather events, and diverse environmental conditions.
Delivering consistent and reliable battery power at industrial scales without compromise, PolyJoule customers have saved millions of dollars.
PolyJoule’s capital-light operating model includes a cost-effective manufacturing blueprint for seamless global deployment. By leveraging locally available, low-cost, raw materials and existing manufacturing equipment, our production scales efficiently across industries and continents.
Our production paradigm is simple—with fewer manufacturing steps, no clean rooms required, and modular lines—requiring less CAPEX per kWh and a nimbler path to scale.
25,000 cells produced to date. 263 million operating hours achieved. We continuously refine our technology to deliver a better alternative to metal-based batteries.
Safety is the foundation of every battery we build. We stand by what’s inside our batteries, right down to the last molecule.
We're committed to a greener future. From leveraging recyclables, to using less water and energy per kWh, reducing GHG emissions, and ensuring long product life—we see sustainability not as a line, but a full circle.
Mr. Eli Paster earned his PhD from MIT, specializing in electrochemistry, manufacturing, and physical chemistry, with a focus on entrepreneurship. An innovator with 10+ patents, he has published across fields spanning batteries, chemistry, biophysics, advocacy, and literature. With a global mindset, Mr. Paster speaks four languages, has lived in five countries, and has shown a commitment to advancing both technology and thought leadership.
As CEO, Mr. Paster builds the PolyJoule team, secures offtake agreements, cultivates strategic partnerships, and sets the techno-economic-strategic course.
Dr. Kendall Nowocin earned his M.S. and Ph.D. from MIT, specializing in electrical system architecture and microgrid design. Dr. Nowocin is the author of 10+ patents and publications, showcasing his technical expertise and leadership.
At PolyJoule, he oversees system architecture, software and hardware development, and testing while managing customer contracts and technical support.
David Neafus holds a BS from the University of Minnesota and an MBA from Bentley University. A seasoned executive, Mr. Neafus specializes in startups, IPOs, M&A, and equity financing.
With substantial board-level experience across the manufacturing, distribution, Biotech, High-tech, and Cleantech sectors, Mr. Neafus guides PolyJoule’s financial operations and drives P&L strategy.
Taehyen Kang earned his MBA from California State University and an M.S. from Georgia Tech. Formerly a Vice President at Samsung SDI, Mr. Kang led energy storage initiatives spanning systems engineering, marketing, strategy, and scaling deployments to over 5GWh as well as electric vehicles.
At PolyJoule, Mr. Kang drives R&D initiatives, develops business and market opportunities, and structures partnerships and contracts to advance innovation and growth.
Andrew Hartshorn earned his B.Sc. Hons (1st Class) from the University of Canterbury and has 28 years of experience in both designing and trading energy markets, including contributing extensively to the NYISO’s existing market rules.
At PolyJoule, Mr. Hartshorn oversees market and regulatory policy, engaging with customers, regulators, and legislators. Mr. Hartshorn also builds revenue models and fosters new business engagements, driving the success of future PolyJoule deployments.
Leo Delage-Laurin completed his PhD in chemistry at MIT under PolyJoule Co-founder Professor Tim Swager. With 10+ peer-reviewed publications, Dr. Delage-Laurin's collaborative work spans academia and industry, with research experience in polymer science, materials science, physics, electrochemistry, and optics.
Dr. Delage-Laurin leads PolyJoule’s chemistry solutions through his extensive expertise and innovations in organic chemistry discovery.
