Breathe Battery Technologies, a UK-based developer of battery software, has secured $21 million in Series B funding to expand its suite of physics-based battery tools and scale its laboratory and commercial operations.
Breathe develops software that supports the full battery development process — from early-stage simulation and system design to embedded charging optimization and validation. Its portfolio now includes:
- Breathe Model: simulation software for cell-level electrochemical and thermal behavior
- Breathe Map: performance mapping and analysis of battery capabilities
- Breathe Design: a design platform for optimizing system-level battery configurations
- Breathe Charge: adaptive charging software currently integrated into upcoming Volvo EVs, including the ES90
These tools are designed for use across multiple sectors, including automotive, micro-mobility, and grid-scale storage. As global demand for electric vehicles and energy storage grows, such software is becoming increasingly essential for improving battery performance, reducing development costs, and accelerating time-to-market.
Proceeds from the funding round will support expansion of the company’s London-based testing facility, which has grown from 7,500 to 13,500 square feet. The lab now houses over 696 test channels, including more than 150 automotive-grade systems, and is supported by a battery dataset exceeding two million test hours.
This funding round was led by Kinnevik, with continued support from Lowercarbon Capital and the Volvo Cars Tech Fund, which previously backed Breathe’s adaptive charging technology. The company raised $2 million in 2021 in an earlier round led by Speedinvest.
Founded by researchers from Imperial College London, Breathe is led by CEO Dr. Ian Campbell and CTO Dr. Will Searle. The company plans to invest in its technology stack, grow its engineering and commercial teams, and broaden its support for OEM and Tier 1 customers developing next-generation battery systems.
Filed Under: Batteries, Technology News