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Zinc-Air Cathode: 2D Oxygen Diffusion & Polarization Map

2D reaction-diffusion cathode simulator: watch a numerically-solved O2 concentration field starve at the catalyst surface as discharge current rises, alongside a live Butler-Volmer/Tafel polarization curve — the same electrochemistry as the 3D zinc-air battery simulator, shown as a 2D field instead of a 3D scene.

Energy & Thermodynamics2DAdvanced60 FPS📱 Mobile-adapted⇄ 3D version

This is the 2D counterpart of the 3D zinc-air battery cathode simulator. Rather than rendering individual O2 molecules flying through a 3D scene, it numerically solves the same underlying electrochemistry as a 2D reaction-diffusion field: an oxygen concentration grid that diffuses from the bulk air side down to a catalyst row, which consumes O2 according to the delivered discharge current and Faraday's law. The boundary layer visibly thins as current approaches the diffusion limit, and a live polarization curve (voltage vs. current density from Butler-Volmer/Tafel kinetics) tracks the same operating point in real time.

⚙ Under the hood

zinc-air batteryoxygen reduction reactionelectrocatalysisTafel kineticsFaradaic efficiency

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install