James Morra

Temperatures that fluctuate either too hot or too cold pose danger to battery packs. As the Arrhenius equation shows, a 10°C rise in battery temperature can roughly double the rate of internal side reactions, which may grant a temporary boost to capacity during discharge. However, prolonged exposure can also degrade the battery and reduce its cycle life. In very hot conditions, the risk of cell venting and thermal runaway could lead to smoke, fires, or explosions.

Securing all of the different layers of a system from the application software down to the operating system and the firmware is key to defending against hackers and other threats. However, the silicon forms the foundation for security. The vulnerabilities there can undercut protections in other parts of the system, and hardware itself is increasingly exposed to malicious inclusions and in-field attacks.

A new series of pressure sensors can detect subtle pressure changes in gases and liquids, allowing them to accurately monitor coolant pressure in EV battery thermal-management and liquid-cooling systems for AI data centers. As these systems grow increasingly power-dense, cooling systems are critical to performance and reliability, said Karel Claesen, product line director at Melexis, which developed the new line of low-pressure sensors.