Superdielectrics has launched the Faraday 2, its next-generation aqueous polymer battery, developed as a safer, more sustainable alternative to lithium-ion technologies.
Based in Cambridge, the company is targeting residential energy storage with a fridge-sized unit capable of reducing household electricity bills by up to 85%. The Faraday 2 builds on the original Faraday 1 prototype, advancing the path to scalable, affordable energy storage for homes.
The battery leverages Superdielectrics’ patented technology – derived from contact lens polymers – and is constructed from non-toxic, abundant materials with no reliance on critical or rare earth metals. It charges fully in just 30 minutes, enabling efficient use of surplus renewable generation and supporting flexible tariffs for energy independence.
Performance highlights:
- Enhanced safety: ~50% water-based composition eliminates risk of thermal runaway
- Lower cost: Absence of critical metals reduces material expense and enhances supply security
- Sustainable: Made from recyclable and readily available components
- Longevity: Projected to exceed the lifecycle of current battery systems
- Energy density: Outperforms lead-acid, with R&D focused on competing with lithium-ion capacity
Commenting on the launch, Jim Heathcote, CEO of Superdielectrics, said, “The launch of Faraday 2 is a major step towards a low cost and clean energy future, as well as a key milestone for us as we work towards a commercial product. As the world shifts towards renewable energy, storage is the technological bottleneck. Our technology is low cost, safe and recyclable, helping the world in the global transition to sustainable energy.”
Earlier this year, the company signed a development agreement with E.ON UK, aimed at accelerating deployment and piloting larger units in domestic settings. The collaboration represents a major opportunity to expand safe, recyclable battery systems across European markets.
