X‐ray microscopy. A non‐destructive multi‐scale imaging to study the inner workings of batteries

X-ray microscopy (XRM) is a non-destructive characterization technique that provides quantitative information regarding the morphology/composition of the specimen and allows to perform multiscale and multimodal 2D/3D experiments exploiting the radiation-matter interactions. XRM is particularly suitable to afford in situ images of inner parts of a battery and for the early diagnosis of its degradation in a non-invasive way. Since traditional characterization techniques (SEM, AFM, XRD) often require the removal of a component from the encapsulated device that may lead to non-desired contamination of the sample, the non-destructive multi-scale potential of XRM represents an important improvement to batteries investigation. In this work, we present the advanced technical features that characterize a sub-micron X-ray microscopy system, its use for the investigation of hidden and internal structures of different types of batteries and to understand their behavior and evolution after many charge/discharge cycles

Inspiring the Next Generation: Challenges and Strategies for Onboarding and Retention in an Undergraduate CubeSat Design Team

The University of Toronto Aerospace Team (UTAT) Space Systems Division is a fully student levy-funded, student-led undergraduate design team that develops CubeSats with research-oriented payloads. UTAT’s mission is to provide undergraduate students with unique opportunities to develop engineering design skills outside of the classroom, and therefore has a distinct focus on member growth and education. As an undergraduate student team, UTAT faces a unique set of challenges in onboarding members and maintaining a strong knowledge base on the team. These challenges include onboarding members with limited technical experience, equipping them with satellite design skills, and maintaining high interest levels among volunteer members with limited time to contribute. The team has implemented a wide range of strategies related to onboarding and member development over the past two years. Notable examples include hosting workshops and regular work sessions, and employing practice projects for technical skill development. This paper presents these practices in depth and evaluates their impacts using both quantitative and qualitative metrics of team success including retention rates, team demographic data, and individual perceptions of team dynamics. It also evaluates these practices against scientifically backed models, while evaluating the effectiveness of these models in the student team environment. Lessons learned include the importance of emphasizing a culture of inclusivity and psychological safety as well as utilizing workshops and skill-building modules both in the onboarding phase and throughout the year to generate and maintain interest in the team. The practices presented here are relevant and transferable to similar organizations including student teams, industry projects, and research initiatives

X-ray microscopy – A non-destructive high-resolution imaging to study the inner workings of batteries

X-ray Microscopy (XRM) is a non-destructive characterization technique that provides quantitative information regarding the morphology of the specimen and allows to perform multiscale and multimodal 2D/3D experiments exploiting the radiation-matter interactions. XRM is particularly suitable to provide in situ images of inner parts of a battery and for the early diagnosis of its degradation in a non-invasive way. Since traditional characterization techniques (SEM, AFM, etc) often require the removal of the battery case that may lead to non-desired contamination of the sample, the non-destructive multi-scale potential of XRM represents an important improvement on battery investigation. Here we present the advanced technical features that characterize a sub-micron X-ray microscopy system, and how it can be used to investigate hidden and internal structures of different types of batteries to understand their behavior and evolution after several charge/discharge cycles

Cover Feature: X‐Ray Microscopy: A Non‐Destructive Multi‐Scale Imaging to Study the Inner Workings of Batteries (ChemElectroChem 7/2023)

X-ray microscopy (XRM) is a non-destructive characterization technique that provides quantitative information regarding the morphology/composition of the specimen and allows to perform multiscale and multimodal 2D/3D experiments exploiting the radiation-matter interactions. XRM is particularly suit able to afford in situ images of inner parts of a battery and for the early diagnosis of its degradation in a non-invasive way. Since traditional characterization techniques (SEM, AFM, XRD) often require the removal of a component from the encapsu lated device that may lead to non-desired contamination of the sample, the non-destructive multi-scale potential of XRM represents an important improvement to batteries investiga tion. In this work, we present the advanced technical features that characterize a sub-micron X-ray microscopy system, its use for the investigation of hidden and internal structures of different types of batteries and to understand their behavior and evolution after many charge/discharge cycles

Plurilinguisme et monde du travail. Professions, opérateurs et acteurs de la diversité linguistique. Actes des Cinquièmes Journées des droits linguistiques

Les Cinquièmes Journées des Droits Linguistiques ont salué le lancement du cycle de colloques itinérants intitulé « Plurilinguisme et monde du travail ». L’enjeu principal posé par ce cycle de conférences était de montrer notamment le volet « pratique » et « économique » du plurilinguisme. Nous proposons ici l’analyse, souvent dans les menus détails, des professions, opérateurs et acteurs de la diversité linguistique