Vanadium Redox Flow Battery 2D: OCV/SoC Strip Chart & Nernst Curve

This is the 2D instrument-panel counterpart to the 3D vanadium redox flow battery simulator, driven by the identical Nernst-equation and coulomb-counting model but read out through genuinely 2D-only views: a rolling strip chart plotting true state of charge, BMS-estimated state of charge, and each tank's individual vanadium ratio against time, plus a live Nernst OCV-vs-SoC curve comparing the battery's real curve at its actual electrolyte temperature against the fixed-25°C curve a real battery-management system assumes when it inverts a single voltage reading. Push the temperature slider away from 25°C and watch the operating point peel off the dashed reference curve; turn up membrane crossover and watch the two tanks' traces on the strip chart converge toward each other rather than split apart, which is the physically correct diffusion behavior for vanadium crossover in a real cell.