Feon Energy Raises $6.1M in Seed Funding


Feon Energy, a battery electrolyte startup based in Woburn, MA, has successfully raised $6.1 million in seed funding.

Key Details

  • Funding Round: Led by Fine Structure Ventures, with participation from Eight Roads, Foothill Ventures, MassVentures, EPS Ventures, and Valkyrie Fund.
  • Purpose: The funds will be used to expand the R&D team, scale up the high-throughput molecular discovery platform, and accelerate commercial engagement with battery and automotive players.

Founders and Leadership

  • CEO: Wenxiao Huang

Company Overview

  • Technology: Feon Energy offers a platform approach to developing new electrolyte molecules and formulations for advanced battery chemistries, including lithium-metal and cobalt-free ultra-high-voltage lithium-ions.
  • Products: The company’s non-flammable liquid electrolyte solutions are designed to enhance battery performance by increasing energy density, improving safety, reducing costs, and ensuring supply chain resilience.

Key Features and Advantages

  • Multiple Chemistries: Ability to address multiple future battery chemistries.
  • Manufacturing Integration: Solutions integrate seamlessly into existing battery manufacturing processes, facilitating rapid scaling.
  • Molecular Innovation: Continuous innovation through a molecular-level understanding of electrolyte behavior.

Milestones and Achievements

  • Energy Density: Developed lithium-metal batteries with energy densities over 400 Wh/kg, which is 50% higher than current lithium-ion batteries.
  • Commercial Samples: Began shipping pre-A samples to leading automotive, aviation, and consumer electronics OEMs.
  • Safety Certification: Lithium-metal cells have obtained UN 38.3 safety certification, an international standard for safely transporting lithium batteries. This certification confirms the batteries can withstand extreme conditions such as short-circuiting, crushing, vibration, forced discharge, and exposure to high temperatures.


Feon Energy is poised to revolutionize the battery industry with its innovative electrolyte solutions. The recent seed funding will enable the company to expand its R&D efforts, scale its technology, and engage with major players in the battery and automotive sectors. With its advanced battery chemistries and robust safety certifications, Feon Energy is well-positioned to make significant contributions to the future of energy storage and electric vehicles.

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