HARWELL, UK (3 July 2025) Representatives from five leading European organisations: AVL, BMW Group, Fortescue ZERO, SINTEF and TNO, will form the Battery Parameter eXchange (BPX) Steering Group, which will also include UK battery start-ups and Faraday Institution researchers.
The Battery Parameter eXchange (BPX) is an open standard for physics-based lithium-ion battery models that has been developed to reduce costs and streamline battery model supply chains through a common definition of physics-based battery modelling parameters that can be used widely across industry.
The Steering Group comprises experienced battery modellers from a wide range of leading companies and research institutions that will advise the Faraday Institution on strategy for the future evolution of the BPX standard, including review of the feature roadmap. In doing so they will ensure the needs of industrial users will continue to be met as battery modelling technologies advance and industrial needs evolve. They will encourage the use of the BPX standard within their own organisations and across the wider industry.
Edwin Knobbe, BMW Group commented : “BMW Group is pleased to be supporting the development of battery modelling standards to mature industry’s use of modelling tools towards cost and efficiency gains.”
Tom Maull, Fortescue ZERO commented: “To increase the speed of innovation in the battery modelling community, industry and academia need to speak the same language. We’re pleased to play a leading role in this endeavour.”
The Steering Group comprises:
A new version of BPX has just been released that includes updates to:
BPX v0.4 has been available since December 2023, with 330+ people downloading the standard to date. In October 2024, following detailed industry engagement, an accompanying parameter descriptions document containing detailed and practical descriptions of how to measure the parameters defined in the standard was published.
The standard has been conceived and developed by the Faraday Institution and developed by a small team largely drawn from the PyBaMM and DandeLiion modelling communities, supported as part of the Faraday Institution’s Multi-Scale Modelling project . Two members of the Steering Group – Ionworks and About:Energy – are closely aligned with modelling project and were both Faraday Institution Entrepreneurial Fellows.
In the short and medium term, the Faraday Institution will continue to fund the development of the BPX standard as part of its commercialisation activities from its research programmes. In the longer term it is anticipated that BPX will evolve to become a membership-funded standards development organisation, led by an executive board of fee-paying members with the steering group evolving to become a technical advisory board.
The Faraday Institution is a delivery partner for the Battery Innovation Programme, supporting the UK's advancement in batteries—designated as a 'frontier industry' within the Advanced Manufacturing Sector Plan of the UK's Industrial Strategy.
Get involved
The Faraday Institution welcomes approaches from industry organisations wishing to get involved with the BPX development process. To do so please contact Pete Keevill .
All battery modellers are invited to request additional features to be included in BPX via discussions boards in GitHub . The Steering Group will consider these requests and decide which to include in future versions to drive the standard forward.