EME 023

58 Deep insight: Immersion cooling Discussing the advantages of immersion cooling and the various forms that approach can take 66 Focus: Battery inspection Getting inside a battery to check its integrity or to trace a fault in a non-destructive manner is technologically challenging, as we explain 74 PS: A question of bandgap Wide bandgap semiconductors can be SiC or GaN: which would win in a fight? We explore that question 4 Intro Materials are a key to e-mobility designs, whether for lightweight structures or with the latest developments in battery coatings, or for exploitation of phase change materials 6 The Grid We consider how axial flux motors and in-fan motors are driving innovation on the ground and in the air, new LFP cells that charge in only six minutes and much more… 16 In conversation: Tony Persson Scania AB’s head of battery production explains his company’s key role in the development of electric vehicles for demanding applications 20 Dossier: H3X How the Colorado-based firm is boosting the power density of its motor drives to take electric aircraft even further 34 Focus: Phase change materials Phase change materials offer intriguing possibilities in the thermal management of EV powertrains 44 Insight: Battery coatings We find complex challenges within the development of coatings for battery applications 52 Digest: Pulse 63 electric RHIB We explore a new generation rigid hull inflatable boat that obtains benchmark performance from electrical energy 34 66 20 58 3 E-Mobility Engineering | January/February 2024 January/February 2024 | Contents

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