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Most battery simulation work happens inside large OEM simulation frameworks - tools with hundreds of subsystems, long setup times, and infrastructure built for full-vehicle analysis. Useful when you need the full vehicle. Counterproductive when you need to iterate quickly on battery-specific questions. At Volvo Trucks, the problem was clear: the battery and BMS teams needed a simulation environment they could actually use - fast iteration, battery-focused, not dragging a full vehicle model along for every run. ...

The Quiet Problem Inside Every Battery If you own a smartphone or an electric vehicle, you have experienced battery degradation. That slow, frustrating decline where a full charge used to last all day and now barely makes it to dinner. The science behind this is actually fascinating, even if the experience is annoying. Inside every lithium-ion battery, a protective layer called the Solid Electrolyte Interphase (SEI) forms during the first charge. This layer is essential - without it, the battery would destroy itself immediately. But here is the cruel part: the SEI never stops growing. It creeps thicker over time, consuming active lithium that could otherwise be used to power your device. ...