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KEMIWATT

  • BVC Downstream, Energy Storage Applications, Stationary Battery Deployment
  • Battery R&D, Energy Storage System (ESS), Flow Battery, Grid Scale Battery Storage, Industrial Energy Storage

KEMIWATT, founded in 2014 in Rennes, France, develops sustainable organic Redox Flow Batteries. Their innovative AORFB technology uses biodegradable materials for efficient energy storage in grids and renewable systems. Renowned for modular design and environmental responsibility.

Company Location

Country:

France

City:

Rennes

Contact details

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Company Overview

KEMIWATT, founded in 2014 in Rennes, France, develops organic Aqueous Organic Redox Flow Battery systems for sustainable energy storage, focusing on integrating renewables into grids and microgrids with environmentally responsible solutions.

Battery Technology

KEMIWATT’s core technology is Aqueous Organic Redox Flow Batteries using potassium ferrocyanide and proprietary anthraquinone derivatives in an alkaline environment, offering modular scalability, reduced corrosion, enhanced safety, high cycle life, and recyclable organic components.

Products

Modular flow battery systems featuring biodegradable organic electrolytes, scalable energy capacity (based on electrolyte volume) and power output (cell count), minimal thermal runaway risk, and robust cycling performance for renewable energy storage, grid services, and industrial applications.

Recent Projects

Partnership with MANN+HUMMEL to develop advanced PFAS-free Ion Exchange Membrane Redox Flow Batteries; joined the Federation of European Tank Storage Associations (FETSA) as a supplier partner.

Investors

KEMIWATT is backed by Demeter Ventures, GO Capital and SATT Ouest Valorisation. It raised €4.4M by 2018. Pierre-Yves Divet was appointed non-executive director in 2018.
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