UK electrochemical energy storage body the Faraday Institution said it launched an open standard for physics-based lithium-ion battery models, the Battery Parameter eXchange (BPX).
The standard defines the battery parameters, equations using them, and the reporting of experimental measurements used to validate the reported parameters.
Faraday said physics-based battery models can deliver accuracy and insight into long-term performance in a wide range of scenarios. But the complexity of physics-based models and lack of a common definition has limited their use to specialist teams within large companies, each having their own model.
The purpose of BPX is to reduce costs and time-to-market through common battery model definitions, it added.
Professor Gregory Offer of Imperial College London, said: “Design of an optimal battery system for a particular application demands a deep understanding of battery performance under a wide range of conditions. The physics-based model codified in the BPX standard makes that knowledge and understanding more available for engineers to solve real world problems. Making that knowledge widely available is a powerful enabler for the optimisation of lithium-ion technology and its successors.”
There will be briefing for industry organisations: 2pm, 11th January 2023. Email bpx@faraday.ac.uk for details.
Image: Simulation of heat generation during discharge across an entire electric vehicle battery pack using DandeLiion
