Mirefield
Mirefield simulates cell degradation so battery teams can cut a test cycle from months to weeks without pretending physics went away.

What we saw in Mirefield.
Battery development is gated by physical testing. Every week saved in simulation is a week earlier to market, and the industry is short on both time and test rigs.
Elin spent seven years in cell development and built the model to answer her own questions. Two manufacturers were using it before the company existed.
Deep technical sale, small number of buyers, high contract value. That combination usually works when the founder is credible in the room.
The company in short.
- Founded
- 2021, Stockholm
- Founders
- Elin Sandberg and Jonas Ek
- Sector
- Climate
- First cheque
- Seed, 2022
- Our role
- Led the seed
- Partner
- Tobias Lund
- Status
- Active
- Website
- mirefield.tech
How Mirefield has moved.
Founded in Stockholm by two battery engineers.
Rifatela led the $4.5M seed.
Working with nine cell manufacturers across Europe and Asia.
Companies working on nearby problems.
Building something in this space?
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