Summary:

- Researchers have uncovered the underlying mechanisms that cause lithium-ion batteries to degrade over time, a longstanding problem in battery technology.
- The study found that the formation of solid electrolyte interphase (SEI) layers on the battery's anode is the primary cause of capacity loss and performance degradation in lithium-ion batteries.
- The researchers developed a new model that can accurately predict the rate of SEI layer growth, which will help battery manufacturers design more durable and longer-lasting batteries for a variety of applications, from consumer electronics to electric vehicles.