The battery information format (BIF): A memory-efficient standard for communicating cell usage and status for battery digital twins (BDTs)
Artikel i vetenskaplig tidskrift, 2025

The massive expansion in lithium-ion battery (LIB) powered applications demands attention to reliability and increased lifetime, for a truly sustainable value chain. Data-driven lifetime modelling offers a route to ensure optimal usage patterns, but the lack of widely accessible LIB fleet data for training hampers benchmarking and optimization. Here we approach the lack of available training data by outlining an implementation of a battery information format (BIF). We suggest a feature-first approach, simultaneously respecting memory constraints of embedded systems and heralding a mechanistic understanding of LIB ageing. First, we examine existing feature designs. Second, we define qualitative requirements for collected battery data. From this combined, we arrive at a BIF where trade-offs can be matched to the constraints of the application. The BIF follows a histogram-based strategy, which allows to share battery state-of-health (SOH) and usage history in an interpretable, accessible, and reusable way. This BIF strategy furthermore allows training of data-driven models for predicting SOH and a vast reduction of the data footprint – by 2-4 orders of magnitude as compared to time-series data collection schemes.

Battery field data

Battery lifetime prediction

Battery informatics

Battery degradation

Battery management systems

Författare

Kasper Westman

Elysia – Battery Intelligence from Fortescue Zero

Chalmers, Fysik, Materialfysik

Nortical AB

Antti Aitio

Elysia – Battery Intelligence from Fortescue Zero

Viktor Nilsson

Chalmers, Fysik, Materialfysik

Patrik Johansson

Chalmers, Fysik, Materialfysik

Alistore ERI European Res Inst

Journal of Power Sources

0378-7753 (ISSN)

Vol. 652 237538-

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Styrkeområden

Informations- och kommunikationsteknik

Transport

Energi

Drivkrafter

Hållbar utveckling

Ämneskategorier (SSIF 2025)

Kommunikationssystem

Annan fysik

Annan data- och informationsvetenskap

DOI

10.1016/j.jpowsour.2025.237538

Mer information

Senast uppdaterat

2025-07-02