Battery

Digest

Submarine lessons for battery EV fire safety

Fires aboard the car carriers Felicity Ace and Freemantle Highway, which were transporting battery EVs, should concentrate minds in governments, regulators and industry – regardless of whether the fires were caused or sustained by thermal runaways in the batteries (writes Peter Donaldson).

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Moulding method for pack covers

Materials firm Sabic has successfully moulded an EV battery pack top cover using low-pressure injection moulding (writes Nick Flaherty). The trial of the process is part of Sabic’s Bluehero initiative to show the manufacturability of large EV battery components using thermoplastic injection moulding. This specific form of...

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Busbars and interconnects

Large EV battery packs can contain thousands of cells that have to be connected to form modules and packs, then connected via busbars to other driveline components such as inverters and DC-DC converters to make robust and reliable connections quickly and efficiently in confined spaces while keeping costs down. That has made...

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Reliability boost for aluminium cells

Researchers in the US have developed a high-power solid-state battery using aluminium that avoids previous reliability issues (writes Nick Flaherty). The team, from the Georgia Institute of Technology (GATech), worked with Novelis, which manufactures aluminium and is the world’s largest aluminium

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Battery surface analysis

Nick Flaherty explains how techniques for analysing the surface of battery materials are leading to better cell designs Materials analysis is essential in developing new battery components and ensuring they meet high standards of quality. Thermal analysis plays an important part in raw material characterisation, especially for thermal runway issues.

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EaglePicher develops battery technology for Saab Gripen fighter aircraft

Battery power systems producer EaglePicher has announced an award by Saab to design and develop a 24 V, 36 Ah lithium-ion batteries for its Gripen E-series fighter aircraft. They are the first of their kind to be used on Saab’s aircraft.

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Battery welding

Welding experts give Peter Donaldson their views on how the technology is keeping abreast of developments in the EV batteries industry Welding is a vitally important family of joining techniques for EV battery systems. A large battery might need thousands of individual connections, joining the positive and negative terminals of cells...

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Cell proves its worth for eVTOLs

About:Energy has characterised the P45B high-power battery cell from Molicel being used in several eVTOL designs (writes Nick Flaherty). The P45B has a 10C pulse discharge capability and a 3C charge capability but can still provide a 242 Wh/kg nominal specific energy. Its low DC internal resistance is measured by About:Energy at 13.8 mΩ (7.86 mΩ for 0.2 seconds) bodes well for high C-rate use cases, particularly where the thermal management system is constrained.

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Bo releases finalised specification of micro-mobility vehicle, the Bo M

Bo, maker and developer of the world’s most sophisticated urban micro-mobility vehicle, announces the move to production and confirms full launch specifications of the revolutionary Bo M, a new electric vehicle for city riders, which will offer the smoothest and most stable ride of any vehicle in its class.

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Turntide introduces new modular battery pack for off-highway vehicles

Turntide Technologies has announced the launch of the Turntide lithium-ion NMC battery pack. It offers a scalable modular design with greater energy density in a lighter, smaller form factor than the previous Hyperdrive battery line.