Teaching a Neural Network the Laws of Battery Decay
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. ...