Engineering
Modeling the Degradation of Lithium-Ion Battery Electrodes with Silicon-Dominant Anodes
Quick fact
Silicon anodes can swell up to 300% in volume when fully charged, which causes particles to crack and the battery to lose capacity quickly. Modeling this degradation helps engineers design longer-lasting silicon-based batteries.
Why this is interesting
Imagine a battery that could store ten times more energy than today's lithium-ion cells—but dies after a few dozen charges. That's the promise and the problem of silicon anodes.