Approach

Characterising complex battery materials and interfaces presents a significant challenge. DigiCell addresses this by pioneering nanoscale imaging techniques, enabling component-level analysis across various chemistries, including next-generation battery options. GHz subsurface imaging offers deeper insights into critical battery interfaces.

Moreover, DigiCell tackles limitations in traditional modelling by combining atomistic models with 3D design methods, promoting accuracy and seamless integration with existing software ecosystems. Artificial intelligence empowers DigiCell to delve deeper into electrochemical processes and develop novel sensing methods for improved battery lifetime estimation.

Bridging the gap between fundamental research and industrial production is pivotal for the European large-scale manufacturing of batteries. However, battery mass production in Europe is young and not yet ready to meet the requirements of automobile manufacturers and other industrial-scale applications.

To change this, DigiCell is testing enhanced materials in two pilot lines, continually monitoring and controlling numerous parameters to achieve specific cell properties. The battery production digital twin optimises cell parameters in a digital environment before implementing them in actual production. Material parameters and pilot line test specifications are evaluated digitally. This integrated approach considers crucial factors like throughput, quality, and cost, which will minimise waste and reduce the CO₂ footprint.

DigiCell is establishing a database for battery data and standard testing procedures linked to an Open Innovation Environment (OIE) and key EU counsels, such as the European Materials Modelling Council (EMMC) and the European Materials Characterisation Council (EMCC).

As a centralised hub, the OIE enables sharing and exchanging of semantic, ontology-based information across members and stakeholders of the materials science and modelling community. To ensure effective dialogues within the OIE, DigiCell provides CHADAs, MODAs, standard operating procedures (SOPs) and related standardisation documents (CEN CWA) that are supported in the OIE.

Accurate device performance evaluation and traceable measurements to international standards are paramount within the battery sector. However, a historical lack of emphasis on standardisation has hindered the integration of scientific advancements into industry practices.

This is why DigiCell is developing and applying standardisation protocols and agreements for the reliable design of new and sustainable materials and processes for battery cell and pack production, modelling, rapid upscaling, effective quality control, recycling, and 2^nd life with a specific focus on industry application.

DigiCell aims to revolutionise cell manufacturing through the development of cutting-edge material tests and models for quality and state of health, enabling real-time monitoring and AI-based control of material properties and component interfaces. This leads to enhanced life-cycle performance, particularly in automotive applications, fostering sustained competitiveness in large-scale battery production across Europe. Our scientific characterisation and modelling tools extend beyond traditional LIB chemistries, paving the way for future advancements in battery cell technologies.

DigiCell is using the newly developed battery materials and modelling techniques to build and test automotive battery packs comprising approximately 3,000 cells, utilising megawatt-level power. These evaluations help to assess the State of Health (SoH) of the batteries and their potential for a "second life" application. Also, the new materials and modelling methods are used in pilot lines and gigafactories to fundamentally increase manufacturing performance, reduce waste and CO₂ emissions.