A strong alliance of major European organizations and British innovators came together to revolutionize how lithium-ion batteries are designed, tested and simulated.
As a key step to harmonizing battery technology across Europe, representatives from five major organizations, AVL, BMW Group, Fortescue Zero, Sintef and TNO, collaborated with researchers from the UK-based battery startup and Faraday facility to form a new battery parameter Exchange (BPX) steering group.
Their mission: to guide the evolution of BPX, an open standard for physics-based lithium-ion battery models.
This joint initiative aims to streamline the development of battery models by providing a unified definition of the parameters used in physically-based battery modeling.
By creating a common language and a set of practices, the BPX standard is designed to reduce costs across the battery supply chain and accelerate innovation.
What is BPX?
BPX is an open standard created to support physical-based battery modeling by defining commonly used parameters in a clear, standardized format.
The initiative aims to reduce costs and simplify the supply chain of battery models by enabling adoption across a wide range of industries.
BPX was developed by the Faraday Institution with the contributions of experts involved in the multi-scale modeling project.
Many of the people involved, including Ionworks members and About: Energy, are closely linked to the Pybamm and Dandeliion modeling communities and are former entrepreneurial fellows at the Faraday facility.
With over 330 downloads since the December 2023 beta release (v0.4), the BPX standard has already begun to have a meaningful impact across academia and industry.
The newly released BPX version 1.0 brings a series of technical upgrades, including:
With a set of formulas for single particle models with thermodynamic decomposition modes and electrolyte support for general hysteresis models, more flexible user-defined parameters are used to use new “initial state” parameters sections of partial BPX files and to use more extensive operations.
These extensions drive close engagement with the battery modeling community and interoperability and accuracy across the industry.
Steering Group: A Pool of Diverse Expertise
The BPX Steering Group is made up of leading battery modelers and technical experts from both academia and industry. The members are:
SIMON CLARK – Dr. Battinfo Ontology Dr. Edmund Dickinson, Developer, About: Energy – A key player in cell data and simulation, Professor David Howie, Professor at Oxford University – Researcher at Faraday Facility Dr. Edwinnob, Dr. Ivankorotkin, BMW Group, Battertor batterer intelion tom mall Robert Timmus, Aeon Works – Co-creator of Dr. Pybamm Dr. Robert Treeve, AVL – Specialising in simulation software for automotive applications
The High Calible Group advises BPX’s technical roadmap and ensures that standards meet industry needs and emerging battery technologies.
Commenting on the Landmark Initiative, Edwin Nobb commented: “The BMW Group supports the development of battery modeling standards for the use of mature industry modeling tools to improve costs and efficiency.”
Vision for the future and industry engagement
Currently funded through the Faraday Institution’s research and commercialization initiative, BPX is set to transition to a membership-funded baseline institution in the coming years.
This future organization will be guided by the Executive Committee, and the current steering group will evolve into a formal technical advisory committee.
The Faraday Agency, which plays a central role in the UK’s Battery Innovation Programme, continues to advocate for battery modeling as the basis for the country’s “frontier industry” within the broader advanced manufacturing sector plan.
Industry organizations interested in shaping the future of battery modeling are encouraged to contact Faraday institutions directly.
Meanwhile, all battery modelers are invited to send feature requests and feedback via GitHub. There, steering groups actively review and integrate community input.
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