controls
EKF to estimate battery state-of-charge '24
SOC can't be measured directly and voltage is noisy, so an EKF fuses a battery model with voltage readings for the best estimate. Built my own equivalent-circuit model, ran a pulse-discharge test, and derived the SOC-OCV curve — all on an Arduino with an 18650 LFP cell.
nonlinear estimation, on-device
ml · materials
BREED 2.0 — ML for solid-state electrolytes '26
DFT screening is too slow, and there's almost no electrolyte data. So I used physics-based features, and combined a composition based model with a structural one to make the most of a small dataset (n=829). MAE ≈ 0.94 log σ.
beats the published OBELiX RF baseline by 36%
