PolyJoule Launches Self-Extinguishing Polymer for Battery Energy Storage Systems in the U.S.
2026-05-07 15:42
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en.Wedoany.com Reported - Battery manufacturer PolyJoule has launched a self-extinguishing conductive polymer chemical material for battery energy storage systems (BESS). This new material utilizes proprietary technology, originally derived from the Massachusetts Institute of Technology (MIT), including a novel conductive cathode and a liquid salt electrolyte.PolyJoule self-extinguishing polymer battery energy storage system material diagram

"PolyJoule has been at the forefront of energy storage safety," said co-founder and CEO Eli Paster. "We are the first company in the world to prove, through UL 9540A testing, that conductive polymer batteries do not experience thermal runaway. The core philosophy behind our development of this next-generation chemical material is: batteries should not cause fires, should not propagate fires, and should not catch fire." The new self-extinguishing polymer can extinguish itself after exposure to flames of nearly 3600°F and requires no active thermal management.

The company states that this self-extinguishing polymer offers a tenfold increase in energy density compared to the first generation and can operate for over 10,000 cycles over its lifetime. PolyJoule plans to accept applications from solar, battery, and generator installers in select markets later this year, offering BESS products for the commercial, industrial, and residential sectors.

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